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alsa-2023:6938
Vulnerability from osv_almalinux
Published
2023-11-14 00:00
Modified
2023-11-24 13:34
Summary
Moderate: container-tools:4.0 security and bug fix update
Details
The container-tools module contains tools for working with containers, notably podman, buildah, skopeo, and runc.
Security Fix(es):
- go-yaml: Improve heuristics preventing CPU/memory abuse by parsing malicious or large YAML documents (CVE-2022-3064)
- golang: html/template: improper handling of JavaScript whitespace (CVE-2023-24540)
- net/http, golang.org/x/net/http2: avoid quadratic complexity in HPACK decoding (CVE-2022-41723)
- golang: crypto/tls: large handshake records may cause panics (CVE-2022-41724)
- golang: net/http, mime/multipart: denial of service from excessive resource consumption (CVE-2022-41725)
- golang.org/x/net/html: Cross site scripting (CVE-2023-3978)
- golang: net/http, net/textproto: denial of service from excessive memory allocation (CVE-2023-24534)
- golang: net/http, net/textproto, mime/multipart: denial of service from excessive resource consumption (CVE-2023-24536)
- golang: go/parser: Infinite loop in parsing (CVE-2023-24537)
- golang: html/template: backticks not treated as string delimiters (CVE-2023-24538)
- golang: html/template: improper sanitization of CSS values (CVE-2023-24539)
- runc: Rootless runc makes
/sys/fs/cgroupwritable (CVE-2023-25809) - runc: volume mount race condition (regression of CVE-2019-19921) (CVE-2023-27561)
- runc: AppArmor can be bypassed when
/procinside the container is symlinked with a specific mount configuration (CVE-2023-28642) - golang: html/template: improper handling of empty HTML attributes (CVE-2023-29400)
- golang: net/http: insufficient sanitization of Host header (CVE-2023-29406)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Additional Changes:
For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section.
References
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"details": "The container-tools module contains tools for working with containers, notably podman, buildah, skopeo, and runc.\n\nSecurity Fix(es):\n\n* go-yaml: Improve heuristics preventing CPU/memory abuse by parsing malicious or large YAML documents (CVE-2022-3064)\n* golang: html/template: improper handling of JavaScript whitespace (CVE-2023-24540)\n* net/http, golang.org/x/net/http2: avoid quadratic complexity in HPACK decoding (CVE-2022-41723)\n* golang: crypto/tls: large handshake records may cause panics (CVE-2022-41724)\n* golang: net/http, mime/multipart: denial of service from excessive resource consumption (CVE-2022-41725)\n* golang.org/x/net/html: Cross site scripting (CVE-2023-3978)\n* golang: net/http, net/textproto: denial of service from excessive memory allocation (CVE-2023-24534)\n* golang: net/http, net/textproto, mime/multipart: denial of service from excessive resource consumption (CVE-2023-24536)\n* golang: go/parser: Infinite loop in parsing (CVE-2023-24537)\n* golang: html/template: backticks not treated as string delimiters (CVE-2023-24538)\n* golang: html/template: improper sanitization of CSS values (CVE-2023-24539)\n* runc: Rootless runc makes `/sys/fs/cgroup` writable (CVE-2023-25809)\n* runc: volume mount race condition (regression of CVE-2019-19921) (CVE-2023-27561)\n* runc: AppArmor can be bypassed when `/proc` inside the container is symlinked with a specific mount configuration (CVE-2023-28642)\n* golang: html/template: improper handling of empty HTML attributes (CVE-2023-29400)\n* golang: net/http: insufficient sanitization of Host header (CVE-2023-29406)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n\nAdditional Changes:\n\nFor detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section.",
"id": "ALSA-2023:6938",
"modified": "2023-11-24T13:34:19Z",
"published": "2023-11-14T00:00:00Z",
"references": [
{
"type": "ADVISORY",
"url": "https://access.redhat.com/errata/RHSA-2023:6938"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2022-3064"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2022-41723"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2022-41724"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2022-41725"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2023-24534"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2023-24536"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2023-24537"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2023-24538"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2023-24539"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2023-24540"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2023-25809"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2023-27561"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2023-28642"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2023-29400"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2023-29406"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2023-3978"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2163037"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2175721"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2178358"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2178488"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2178492"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2182883"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2182884"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2184481"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2184482"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2184483"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2184484"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2196026"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2196027"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2196029"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2222167"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2228689"
},
{
"type": "ADVISORY",
"url": "https://errata.almalinux.org/8/ALSA-2023-6938.html"
}
],
"related": [
"CVE-2022-3064",
"CVE-2023-24540",
"CVE-2022-41723",
"CVE-2022-41724",
"CVE-2022-41725",
"CVE-2023-3978",
"CVE-2023-24534",
"CVE-2023-24536",
"CVE-2023-24537",
"CVE-2023-24538",
"CVE-2023-24539",
"CVE-2023-25809",
"CVE-2019-19921",
"CVE-2023-27561",
"CVE-2023-28642",
"CVE-2023-29400",
"CVE-2023-29406"
],
"summary": "Moderate: container-tools:4.0 security and bug fix update"
}
CVE-2023-27561 (GCVE-0-2023-27561)
Vulnerability from cvelistv5 – Published: 2023-03-03 00:00 – Updated: 2025-12-16 20:02
VLAI?
EPSS
Summary
runc through 1.1.4 has Incorrect Access Control leading to Escalation of Privileges, related to libcontainer/rootfs_linux.go. To exploit this, an attacker must be able to spawn two containers with custom volume-mount configurations, and be able to run custom images. NOTE: this issue exists because of a CVE-2019-19921 regression.
Severity ?
CWE
- n/a
Assigner
References
| URL | Tags | ||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||||||||
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CVE-2023-24538 (GCVE-0-2023-24538)
Vulnerability from cvelistv5 – Published: 2023-04-06 15:50 – Updated: 2025-02-13 16:44
VLAI?
EPSS
Title
Backticks not treated as string delimiters in html/template
Summary
Templates do not properly consider backticks (`) as Javascript string delimiters, and do not escape them as expected. Backticks are used, since ES6, for JS template literals. If a template contains a Go template action within a Javascript template literal, the contents of the action can be used to terminate the literal, injecting arbitrary Javascript code into the Go template. As ES6 template literals are rather complex, and themselves can do string interpolation, the decision was made to simply disallow Go template actions from being used inside of them (e.g. "var a = {{.}}"), since there is no obviously safe way to allow this behavior. This takes the same approach as github.com/google/safehtml. With fix, Template.Parse returns an Error when it encounters templates like this, with an ErrorCode of value 12. This ErrorCode is currently unexported, but will be exported in the release of Go 1.21. Users who rely on the previous behavior can re-enable it using the GODEBUG flag jstmpllitinterp=1, with the caveat that backticks will now be escaped. This should be used with caution.
Severity ?
9.8 (Critical)
CWE
- CWE-94 - Improper Control of Generation of Code ('Code Injection')
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Go standard library | html/template |
Affected:
0 , < 1.19.8
(semver)
Affected: 1.20.0-0 , < 1.20.3 (semver) |
Credits
Sohom Datta, Manipal Institute of Technology
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CVE-2023-25809 (GCVE-0-2023-25809)
Vulnerability from cvelistv5 – Published: 2023-03-29 18:22 – Updated: 2025-02-12 16:02
VLAI?
EPSS
Title
rootless: `/sys/fs/cgroup` is writable when cgroupns isn't unshared in runc
Summary
runc is a CLI tool for spawning and running containers according to the OCI specification. In affected versions it was found that rootless runc makes `/sys/fs/cgroup` writable in following conditons: 1. when runc is executed inside the user namespace, and the `config.json` does not specify the cgroup namespace to be unshared (e.g.., `(docker|podman|nerdctl) run --cgroupns=host`, with Rootless Docker/Podman/nerdctl) or 2. when runc is executed outside the user namespace, and `/sys` is mounted with `rbind, ro` (e.g., `runc spec --rootless`; this condition is very rare). A container may gain the write access to user-owned cgroup hierarchy `/sys/fs/cgroup/user.slice/...` on the host . Other users's cgroup hierarchies are not affected. Users are advised to upgrade to version 1.1.5. Users unable to upgrade may unshare the cgroup namespace (`(docker|podman|nerdctl) run --cgroupns=private)`. This is the default behavior of Docker/Podman/nerdctl on cgroup v2 hosts. or add `/sys/fs/cgroup` to `maskedPaths`.
Severity ?
5 (Medium)
CWE
- CWE-281 - Improper Preservation of Permissions
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| opencontainers | runc |
Affected:
< 1.1.5
|
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CVE-2022-3064 (GCVE-0-2022-3064)
Vulnerability from cvelistv5 – Published: 2022-12-27 21:17 – Updated: 2025-04-14 17:05
VLAI?
EPSS
Title
Excessive resource consumption in gopkg.in/yaml.v2
Summary
Parsing malicious or large YAML documents can consume excessive amounts of CPU or memory.
Severity ?
7.5 (High)
CWE
- CWE 400: Uncontrolled Resource Consumption
Assigner
References
| URL | Tags | |||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| gopkg.in/yaml.v2 | gopkg.in/yaml.v2 |
Affected:
0 , < 2.2.4
(semver)
|
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CVE-2019-19921 (GCVE-0-2019-19921)
Vulnerability from cvelistv5 – Published: 2020-02-12 00:00 – Updated: 2024-08-05 02:32
VLAI?
EPSS
Summary
runc through 1.0.0-rc9 has Incorrect Access Control leading to Escalation of Privileges, related to libcontainer/rootfs_linux.go. To exploit this, an attacker must be able to spawn two containers with custom volume-mount configurations, and be able to run custom images. (This vulnerability does not affect Docker due to an implementation detail that happens to block the attack.)
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
| URL | Tags | ||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||||||||||||||||||||||||||
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CVE-2023-29406 (GCVE-0-2023-29406)
Vulnerability from cvelistv5 – Published: 2023-07-11 19:23 – Updated: 2025-02-13 16:49
VLAI?
EPSS
Title
Insufficient sanitization of Host header in net/http
Summary
The HTTP/1 client does not fully validate the contents of the Host header. A maliciously crafted Host header can inject additional headers or entire requests. With fix, the HTTP/1 client now refuses to send requests containing an invalid Request.Host or Request.URL.Host value.
Severity ?
No CVSS data available.
CWE
- CWE-113 - Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Request/Response Splitting')
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Go standard library | net/http |
Affected:
0 , < 1.19.11
(semver)
Affected: 1.20.0-0 , < 1.20.6 (semver) |
Credits
Bartek Nowotarski
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CVE-2023-24539 (GCVE-0-2023-24539)
Vulnerability from cvelistv5 – Published: 2023-05-11 15:29 – Updated: 2025-01-24 16:41
VLAI?
EPSS
Title
Improper sanitization of CSS values in html/template
Summary
Angle brackets (<>) are not considered dangerous characters when inserted into CSS contexts. Templates containing multiple actions separated by a '/' character can result in unexpectedly closing the CSS context and allowing for injection of unexpected HTML, if executed with untrusted input.
Severity ?
7.3 (High)
CWE
- CWE-74 - Improper input validation
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Go standard library | html/template |
Affected:
0 , < 1.19.9
(semver)
Affected: 1.20.0-0 , < 1.20.4 (semver) |
Credits
Juho Nurminen of Mattermost
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CVE-2023-3978 (GCVE-0-2023-3978)
Vulnerability from cvelistv5 – Published: 2023-08-02 19:48 – Updated: 2024-09-27 21:57
VLAI?
EPSS
Title
Improper rendering of text nodes in golang.org/x/net/html
Summary
Text nodes not in the HTML namespace are incorrectly literally rendered, causing text which should be escaped to not be. This could lead to an XSS attack.
Severity ?
No CVSS data available.
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| golang.org/x/net | golang.org/x/net/html |
Affected:
0 , < 0.13.0
(semver)
|
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CVE-2022-41723 (GCVE-0-2022-41723)
Vulnerability from cvelistv5 – Published: 2023-02-28 17:19 – Updated: 2025-05-05 16:12
VLAI?
EPSS
Title
Denial of service via crafted HTTP/2 stream in net/http and golang.org/x/net
Summary
A maliciously crafted HTTP/2 stream could cause excessive CPU consumption in the HPACK decoder, sufficient to cause a denial of service from a small number of small requests.
Severity ?
7.5 (High)
CWE
- CWE 400: Uncontrolled Resource Consumption
Assigner
References
| URL | Tags | |||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Go standard library | net/http |
Affected:
0 , < 1.19.6
(semver)
Affected: 1.20.0-0 , < 1.20.1 (semver) |
||||||||||||
|
||||||||||||||
Credits
Philippe Antoine (Catena cyber)
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CVE-2022-41724 (GCVE-0-2022-41724)
Vulnerability from cvelistv5 – Published: 2023-02-28 17:19 – Updated: 2025-03-07 17:57
VLAI?
EPSS
Title
Panic on large handshake records in crypto/tls
Summary
Large handshake records may cause panics in crypto/tls. Both clients and servers may send large TLS handshake records which cause servers and clients, respectively, to panic when attempting to construct responses. This affects all TLS 1.3 clients, TLS 1.2 clients which explicitly enable session resumption (by setting Config.ClientSessionCache to a non-nil value), and TLS 1.3 servers which request client certificates (by setting Config.ClientAuth >= RequestClientCert).
Severity ?
No CVSS data available.
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Go standard library | crypto/tls |
Affected:
0 , < 1.19.6
(semver)
Affected: 1.20.0-0 , < 1.20.1 (semver) |
Credits
Marten Seemann
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CVE-2023-24534 (GCVE-0-2023-24534)
Vulnerability from cvelistv5 – Published: 2023-04-06 15:50 – Updated: 2025-02-13 16:44
VLAI?
EPSS
Title
Excessive memory allocation in net/http and net/textproto
Summary
HTTP and MIME header parsing can allocate large amounts of memory, even when parsing small inputs, potentially leading to a denial of service. Certain unusual patterns of input data can cause the common function used to parse HTTP and MIME headers to allocate substantially more memory than required to hold the parsed headers. An attacker can exploit this behavior to cause an HTTP server to allocate large amounts of memory from a small request, potentially leading to memory exhaustion and a denial of service. With fix, header parsing now correctly allocates only the memory required to hold parsed headers.
Severity ?
7.5 (High)
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Go standard library | net/textproto |
Affected:
0 , < 1.19.8
(semver)
Affected: 1.20.0-0 , < 1.20.3 (semver) |
Credits
Jakob Ackermann (@das7pad)
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CVE-2023-24540 (GCVE-0-2023-24540)
Vulnerability from cvelistv5 – Published: 2023-05-11 15:29 – Updated: 2025-01-24 16:45
VLAI?
EPSS
Title
Improper handling of JavaScript whitespace in html/template
Summary
Not all valid JavaScript whitespace characters are considered to be whitespace. Templates containing whitespace characters outside of the character set "\t\n\f\r\u0020\u2028\u2029" in JavaScript contexts that also contain actions may not be properly sanitized during execution.
Severity ?
9.8 (Critical)
CWE
- CWE-74 - Improper input validation
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Go standard library | html/template |
Affected:
0 , < 1.19.9
(semver)
Affected: 1.20.0-0 , < 1.20.4 (semver) |
Credits
Juho Nurminen of Mattermost
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CVE-2023-24537 (GCVE-0-2023-24537)
Vulnerability from cvelistv5 – Published: 2023-04-06 15:50 – Updated: 2025-02-13 16:44
VLAI?
EPSS
Title
Infinite loop in parsing in go/scanner
Summary
Calling any of the Parse functions on Go source code which contains //line directives with very large line numbers can cause an infinite loop due to integer overflow.
Severity ?
7.5 (High)
CWE
- CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Go standard library | go/scanner |
Affected:
0 , < 1.19.8
(semver)
Affected: 1.20.0-0 , < 1.20.3 (semver) |
Credits
Philippe Antoine (Catena cyber)
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CVE-2023-24536 (GCVE-0-2023-24536)
Vulnerability from cvelistv5 – Published: 2023-04-06 15:50 – Updated: 2025-02-13 16:44
VLAI?
EPSS
Title
Excessive resource consumption in net/http, net/textproto and mime/multipart
Summary
Multipart form parsing can consume large amounts of CPU and memory when processing form inputs containing very large numbers of parts. This stems from several causes: 1. mime/multipart.Reader.ReadForm limits the total memory a parsed multipart form can consume. ReadForm can undercount the amount of memory consumed, leading it to accept larger inputs than intended. 2. Limiting total memory does not account for increased pressure on the garbage collector from large numbers of small allocations in forms with many parts. 3. ReadForm can allocate a large number of short-lived buffers, further increasing pressure on the garbage collector. The combination of these factors can permit an attacker to cause an program that parses multipart forms to consume large amounts of CPU and memory, potentially resulting in a denial of service. This affects programs that use mime/multipart.Reader.ReadForm, as well as form parsing in the net/http package with the Request methods FormFile, FormValue, ParseMultipartForm, and PostFormValue. With fix, ReadForm now does a better job of estimating the memory consumption of parsed forms, and performs many fewer short-lived allocations. In addition, the fixed mime/multipart.Reader imposes the following limits on the size of parsed forms: 1. Forms parsed with ReadForm may contain no more than 1000 parts. This limit may be adjusted with the environment variable GODEBUG=multipartmaxparts=. 2. Form parts parsed with NextPart and NextRawPart may contain no more than 10,000 header fields. In addition, forms parsed with ReadForm may contain no more than 10,000 header fields across all parts. This limit may be adjusted with the environment variable GODEBUG=multipartmaxheaders=.
Severity ?
7.5 (High)
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Go standard library | mime/multipart |
Affected:
0 , < 1.19.8
(semver)
Affected: 1.20.0-0 , < 1.20.3 (semver) |
|||||||
|
|||||||||
Credits
Jakob Ackermann (@das7pad)
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CVE-2023-29400 (GCVE-0-2023-29400)
Vulnerability from cvelistv5 – Published: 2023-05-11 15:29 – Updated: 2025-01-24 16:47
VLAI?
EPSS
Title
Improper handling of empty HTML attributes in html/template
Summary
Templates containing actions in unquoted HTML attributes (e.g. "attr={{.}}") executed with empty input can result in output with unexpected results when parsed due to HTML normalization rules. This may allow injection of arbitrary attributes into tags.
Severity ?
7.3 (High)
CWE
- CWE-74 - Improper input validation
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Go standard library | html/template |
Affected:
0 , < 1.19.9
(semver)
Affected: 1.20.0-0 , < 1.20.4 (semver) |
Credits
Juho Nurminen of Mattermost
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CVE-2022-41725 (GCVE-0-2022-41725)
Vulnerability from cvelistv5 – Published: 2023-02-28 17:19 – Updated: 2025-03-07 17:58
VLAI?
EPSS
Title
Excessive resource consumption in mime/multipart
Summary
A denial of service is possible from excessive resource consumption in net/http and mime/multipart. Multipart form parsing with mime/multipart.Reader.ReadForm can consume largely unlimited amounts of memory and disk files. This also affects form parsing in the net/http package with the Request methods FormFile, FormValue, ParseMultipartForm, and PostFormValue. ReadForm takes a maxMemory parameter, and is documented as storing "up to maxMemory bytes +10MB (reserved for non-file parts) in memory". File parts which cannot be stored in memory are stored on disk in temporary files. The unconfigurable 10MB reserved for non-file parts is excessively large and can potentially open a denial of service vector on its own. However, ReadForm did not properly account for all memory consumed by a parsed form, such as map entry overhead, part names, and MIME headers, permitting a maliciously crafted form to consume well over 10MB. In addition, ReadForm contained no limit on the number of disk files created, permitting a relatively small request body to create a large number of disk temporary files. With fix, ReadForm now properly accounts for various forms of memory overhead, and should now stay within its documented limit of 10MB + maxMemory bytes of memory consumption. Users should still be aware that this limit is high and may still be hazardous. In addition, ReadForm now creates at most one on-disk temporary file, combining multiple form parts into a single temporary file. The mime/multipart.File interface type's documentation states, "If stored on disk, the File's underlying concrete type will be an *os.File.". This is no longer the case when a form contains more than one file part, due to this coalescing of parts into a single file. The previous behavior of using distinct files for each form part may be reenabled with the environment variable GODEBUG=multipartfiles=distinct. Users should be aware that multipart.ReadForm and the http.Request methods that call it do not limit the amount of disk consumed by temporary files. Callers can limit the size of form data with http.MaxBytesReader.
Severity ?
No CVSS data available.
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Go standard library | mime/multipart |
Affected:
0 , < 1.19.6
(semver)
Affected: 1.20.0-0 , < 1.20.1 (semver) |
Credits
Arpad Ryszka
Jakob Ackermann (@das7pad)
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"status": "affected",
"version": "0",
"versionType": "semver"
},
{
"lessThan": "1.20.1",
"status": "affected",
"version": "1.20.0-0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "Arpad Ryszka"
},
{
"lang": "en",
"value": "Jakob Ackermann (@das7pad)"
}
],
"descriptions": [
{
"lang": "en",
"value": "A denial of service is possible from excessive resource consumption in net/http and mime/multipart. Multipart form parsing with mime/multipart.Reader.ReadForm can consume largely unlimited amounts of memory and disk files. This also affects form parsing in the net/http package with the Request methods FormFile, FormValue, ParseMultipartForm, and PostFormValue. ReadForm takes a maxMemory parameter, and is documented as storing \"up to maxMemory bytes +10MB (reserved for non-file parts) in memory\". File parts which cannot be stored in memory are stored on disk in temporary files. The unconfigurable 10MB reserved for non-file parts is excessively large and can potentially open a denial of service vector on its own. However, ReadForm did not properly account for all memory consumed by a parsed form, such as map entry overhead, part names, and MIME headers, permitting a maliciously crafted form to consume well over 10MB. In addition, ReadForm contained no limit on the number of disk files created, permitting a relatively small request body to create a large number of disk temporary files. With fix, ReadForm now properly accounts for various forms of memory overhead, and should now stay within its documented limit of 10MB + maxMemory bytes of memory consumption. Users should still be aware that this limit is high and may still be hazardous. In addition, ReadForm now creates at most one on-disk temporary file, combining multiple form parts into a single temporary file. The mime/multipart.File interface type\u0027s documentation states, \"If stored on disk, the File\u0027s underlying concrete type will be an *os.File.\". This is no longer the case when a form contains more than one file part, due to this coalescing of parts into a single file. The previous behavior of using distinct files for each form part may be reenabled with the environment variable GODEBUG=multipartfiles=distinct. Users should be aware that multipart.ReadForm and the http.Request methods that call it do not limit the amount of disk consumed by temporary files. Callers can limit the size of form data with http.MaxBytesReader."
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "CWE-400: Uncontrolled Resource Consumption",
"lang": "en"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2023-11-25T11:09:27.308Z",
"orgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
"shortName": "Go"
},
"references": [
{
"url": "https://go.dev/issue/58006"
},
{
"url": "https://go.dev/cl/468124"
},
{
"url": "https://groups.google.com/g/golang-announce/c/V0aBFqaFs_E"
},
{
"url": "https://pkg.go.dev/vuln/GO-2023-1569"
},
{
"url": "https://security.gentoo.org/glsa/202311-09"
}
],
"title": "Excessive resource consumption in mime/multipart"
}
},
"cveMetadata": {
"assignerOrgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
"assignerShortName": "Go",
"cveId": "CVE-2022-41725",
"datePublished": "2023-02-28T17:19:42.989Z",
"dateReserved": "2022-09-28T17:02:29.447Z",
"dateUpdated": "2025-03-07T17:58:06.747Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
CVE-2023-28642 (GCVE-0-2023-28642)
Vulnerability from cvelistv5 – Published: 2023-03-29 18:15 – Updated: 2025-02-12 16:02
VLAI?
EPSS
Title
AppArmor bypass with symlinked /proc in runc
Summary
runc is a CLI tool for spawning and running containers according to the OCI specification. It was found that AppArmor can be bypassed when `/proc` inside the container is symlinked with a specific mount configuration. This issue has been fixed in runc version 1.1.5, by prohibiting symlinked `/proc`. See PR #3785 for details. users are advised to upgrade. Users unable to upgrade should avoid using an untrusted container image.
Severity ?
6.1 (Medium)
CWE
- CWE-281 - Improper Preservation of Permissions
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| opencontainers | runc |
Affected:
< 1.1.5
|
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-12-06T13:09:24.993Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"name": "https://github.com/opencontainers/runc/security/advisories/GHSA-g2j6-57v7-gm8c",
"tags": [
"x_refsource_CONFIRM",
"x_transferred"
],
"url": "https://github.com/opencontainers/runc/security/advisories/GHSA-g2j6-57v7-gm8c"
},
{
"name": "https://github.com/opencontainers/runc/pull/3785",
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://github.com/opencontainers/runc/pull/3785"
},
{
"url": "https://security.netapp.com/advisory/ntap-20241206-0005/"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2023-28642",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-02-12T16:02:47.511665Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2025-02-12T16:02:53.406Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "runc",
"vendor": "opencontainers",
"versions": [
{
"status": "affected",
"version": "\u003c 1.1.5"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "runc is a CLI tool for spawning and running containers according to the OCI specification. It was found that AppArmor can be bypassed when `/proc` inside the container is symlinked with a specific mount configuration. This issue has been fixed in runc version 1.1.5, by prohibiting symlinked `/proc`. See PR #3785 for details. users are advised to upgrade. Users unable to upgrade should avoid using an untrusted container image.\n\n"
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "LOW",
"baseScore": 6.1,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-281",
"description": "CWE-281: Improper Preservation of Permissions",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2023-03-29T18:15:48.957Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/opencontainers/runc/security/advisories/GHSA-g2j6-57v7-gm8c",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/opencontainers/runc/security/advisories/GHSA-g2j6-57v7-gm8c"
},
{
"name": "https://github.com/opencontainers/runc/pull/3785",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/opencontainers/runc/pull/3785"
}
],
"source": {
"advisory": "GHSA-g2j6-57v7-gm8c",
"discovery": "UNKNOWN"
},
"title": "AppArmor bypass with symlinked /proc in runc"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2023-28642",
"datePublished": "2023-03-29T18:15:48.957Z",
"dateReserved": "2023-03-20T12:19:47.209Z",
"dateUpdated": "2025-02-12T16:02:53.406Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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