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CERTFR-2021-AVI-149
Vulnerability from certfr_avis - Published: 2021-02-26 - Updated: 2021-02-26
De multiples vulnérabilités ont été découvertes dans le noyau Linux d'Ubuntu. Certaines d'entre elles permettent à un attaquant de provoquer une exécution de code arbitraire à distance, un déni de service à distance et un contournement de la politique de sécurité.
Solution
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
NoneImpacted products
References
| Title | Publication Time | Tags | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "Ubuntu 16.04 LTS",
"product": {
"name": "Ubuntu",
"vendor": {
"name": "Ubuntu",
"scada": false
}
}
},
{
"description": "Ubuntu 20.10",
"product": {
"name": "Ubuntu",
"vendor": {
"name": "Ubuntu",
"scada": false
}
}
},
{
"description": "Ubuntu 18.04 LTS",
"product": {
"name": "Ubuntu",
"vendor": {
"name": "Ubuntu",
"scada": false
}
}
},
{
"description": "Ubuntu 20.04 LTS",
"product": {
"name": "Ubuntu",
"vendor": {
"name": "Ubuntu",
"scada": false
}
}
},
{
"description": "Ubuntu 14.04 ESM",
"product": {
"name": "Ubuntu",
"vendor": {
"name": "Ubuntu",
"scada": false
}
}
}
],
"affected_systems_content": null,
"content": "## Solution\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des\ncorrectifs (cf. section Documentation).\n",
"cves": [
{
"name": "CVE-2020-29368",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-29368"
},
{
"name": "CVE-2020-28974",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-28974"
},
{
"name": "CVE-2020-28915",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-28915"
},
{
"name": "CVE-2020-28588",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-28588"
},
{
"name": "CVE-2020-27777",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-27777"
},
{
"name": "CVE-2020-27152",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-27152"
},
{
"name": "CVE-2020-29660",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-29660"
},
{
"name": "CVE-2020-29569",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-29569"
},
{
"name": "CVE-2020-29661",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-29661"
},
{
"name": "CVE-2020-25284",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-25284"
},
{
"name": "CVE-2020-25704",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-25704"
},
{
"name": "CVE-2020-25212",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-25212"
},
{
"name": "CVE-2020-27835",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-27835"
},
{
"name": "CVE-2020-14314",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-14314"
},
{
"name": "CVE-2020-27830",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-27830"
},
{
"name": "CVE-2020-29568",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-29568"
},
{
"name": "CVE-2020-27815",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-27815"
},
{
"name": "CVE-2020-24490",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-24490"
},
{
"name": "CVE-2020-29371",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-29371"
},
{
"name": "CVE-2020-35508",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-35508"
},
{
"name": "CVE-2020-28941",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-28941"
},
{
"name": "CVE-2020-15437",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-15437"
},
{
"name": "CVE-2020-29374",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-29374"
},
{
"name": "CVE-2020-25656",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-25656"
},
{
"name": "CVE-2020-25669",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-25669"
},
{
"name": "CVE-2020-28374",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-28374"
},
{
"name": "CVE-2020-25668",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-25668"
},
{
"name": "CVE-2020-15436",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-15436"
},
{
"name": "CVE-2021-20177",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-20177"
},
{
"name": "CVE-2020-10135",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-10135"
},
{
"name": "CVE-2020-29369",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-29369"
},
{
"name": "CVE-2020-25643",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-25643"
},
{
"name": "CVE-2020-27675",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-27675"
},
{
"name": "CVE-2020-25641",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-25641"
},
{
"name": "CVE-2020-27673",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-27673"
}
],
"initial_release_date": "2021-02-26T00:00:00",
"last_revision_date": "2021-02-26T00:00:00",
"links": [],
"reference": "CERTFR-2021-AVI-149",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2021-02-26T00:00:00.000000"
}
],
"risks": [
{
"description": "D\u00e9ni de service \u00e0 distance"
},
{
"description": "Ex\u00e9cution de code arbitraire \u00e0 distance"
},
{
"description": "Atteinte \u00e0 l\u0027int\u00e9grit\u00e9 des donn\u00e9es"
},
{
"description": "Contournement de la politique de s\u00e9curit\u00e9"
},
{
"description": "Atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es"
}
],
"summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans le noyau Linux\nd\u0027Ubuntu. Certaines d\u0027entre elles permettent \u00e0 un attaquant de provoquer\nune ex\u00e9cution de code arbitraire \u00e0 distance, un d\u00e9ni de service \u00e0\ndistance et un contournement de la politique de s\u00e9curit\u00e9.\n",
"title": "Multiples vuln\u00e9rabilit\u00e9s dans le noyau Linux d\u0027Ubuntu",
"vendor_advisories": [
{
"published_at": null,
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-4751-1 du 25 f\u00e9vrier 2021",
"url": "https://ubuntu.com/security/notices/USN-4751-1"
},
{
"published_at": null,
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-4752-1 du 25 f\u00e9vrier 2021",
"url": "https://ubuntu.com/security/notices/USN-4752-1"
},
{
"published_at": null,
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-4749-1 du 25 f\u00e9vrier 2021",
"url": "https://ubuntu.com/security/notices/USN-4749-1"
},
{
"published_at": null,
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-4750-1 du 25 f\u00e9vrier 2021",
"url": "https://ubuntu.com/security/notices/USN-4750-1"
},
{
"published_at": null,
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-4748-1 du 25 f\u00e9vrier 2021",
"url": "https://ubuntu.com/security/notices/USN-4748-1"
},
{
"published_at": null,
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-4753-1 du 25 f\u00e9vrier 2021",
"url": "https://ubuntu.com/security/notices/USN-4753-1"
}
]
}
CVE-2020-25668 (GCVE-0-2020-25668)
Vulnerability from cvelistv5 – Published: 2021-05-26 11:11 – Updated: 2024-08-04 15:40
VLAI
EPSS
VEX
Summary
A flaw was found in Linux Kernel because access to the global variable fg_console is not properly synchronized leading to a use after free in con_font_op.
Severity
No CVSS data available.
CWE
- CWE-362 - -> CWE-416
Assigner
References
9 references
| URL | Tags |
|---|---|
| http://www.openwall.com/lists/oss-security/2020/10/30/1 | mailing-listx_refsource_MLIST |
| http://www.openwall.com/lists/oss-security/2020/11/04/3 | mailing-listx_refsource_MLIST |
| https://lists.debian.org/debian-lts-announce/2020… | mailing-listx_refsource_MLIST |
| https://lists.debian.org/debian-lts-announce/2020… | mailing-listx_refsource_MLIST |
| https://www.openwall.com/lists/oss-security/2020/… | x_refsource_MISC |
| https://www.openwall.com/lists/oss-security/2020/… | x_refsource_MISC |
| https://bugzilla.redhat.com/show_bug.cgi?id=1893287%2C | x_refsource_MISC |
| https://git.kernel.org/pub/scm/linux/kernel/git/t… | x_refsource_MISC |
| https://security.netapp.com/advisory/ntap-2021070… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | Linux Kernel |
Affected:
5.9.2
|
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CVE-2020-25669 (GCVE-0-2020-25669)
Vulnerability from cvelistv5 – Published: 2021-05-26 11:25 – Updated: 2024-08-04 15:40
VLAI
EPSS
VEX
Summary
A vulnerability was found in the Linux Kernel where the function sunkbd_reinit having been scheduled by sunkbd_interrupt before sunkbd being freed. Though the dangling pointer is set to NULL in sunkbd_disconnect, there is still an alias in sunkbd_reinit causing Use After Free.
Severity
No CVSS data available.
CWE
Assigner
References
8 references
| URL | Tags |
|---|---|
| http://www.openwall.com/lists/oss-security/2020/11/05/2 | mailing-listx_refsource_MLIST |
| http://www.openwall.com/lists/oss-security/2020/11/20/5 | mailing-listx_refsource_MLIST |
| https://lists.debian.org/debian-lts-announce/2020… | mailing-listx_refsource_MLIST |
| https://lists.debian.org/debian-lts-announce/2020… | mailing-listx_refsource_MLIST |
| https://www.openwall.com/lists/oss-security/2020/… | x_refsource_MISC |
| https://www.openwall.com/lists/oss-security/2020/… | x_refsource_MISC |
| https://github.com/torvalds/linux/commit/77e70d35… | x_refsource_MISC |
| https://security.netapp.com/advisory/ntap-2021070… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | Linux Kernel |
Affected:
5.9.4
|
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},
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CVE-2020-25704 (GCVE-0-2020-25704)
Vulnerability from cvelistv5 – Published: 2020-12-02 00:00 – Updated: 2024-08-04 15:40
VLAI
EPSS
VEX
Summary
A flaw memory leak in the Linux kernel performance monitoring subsystem was found in the way if using PERF_EVENT_IOC_SET_FILTER. A local user could use this flaw to starve the resources causing denial of service.
Severity
No CVSS data available.
CWE
Assigner
References
6 references
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CVE-2020-27152 (GCVE-0-2020-27152)
Vulnerability from cvelistv5 – Published: 2020-11-06 07:46 – Updated: 2024-08-04 16:11
VLAI
EPSS
VEX
Summary
An issue was discovered in ioapic_lazy_update_eoi in arch/x86/kvm/ioapic.c in the Linux kernel before 5.9.2. It has an infinite loop related to improper interaction between a resampler and edge triggering, aka CID-77377064c3a9.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://bugzilla.kernel.org/show_bug.cgi?id=208767 | x_refsource_MISC |
| http://www.openwall.com/lists/oss-security/2020/11/03/1 | mailing-listx_refsource_MLIST |
| https://git.kernel.org/pub/scm/linux/kernel/git/t… | x_refsource_CONFIRM |
| https://cdn.kernel.org/pub/linux/kernel/v5.x/Chan… | x_refsource_CONFIRM |
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CVE-2020-27673 (GCVE-0-2020-27673)
Vulnerability from cvelistv5 – Published: 2020-10-22 20:33 – Updated: 2024-08-04 16:18
VLAI
EPSS
VEX
Summary
An issue was discovered in the Linux kernel through 5.9.1, as used with Xen through 4.14.x. Guest OS users can cause a denial of service (host OS hang) via a high rate of events to dom0, aka CID-e99502f76271.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
9 references
| URL | Tags |
|---|---|
| https://xenbits.xen.org/xsa/advisory-332.html | x_refsource_MISC |
| https://github.com/torvalds/linux/commit/e99502f7… | x_refsource_MISC |
| https://git.kernel.org/cgit/linux/kernel/git/torv… | x_refsource_MISC |
| http://lists.opensuse.org/opensuse-security-annou… | vendor-advisoryx_refsource_SUSE |
| http://lists.opensuse.org/opensuse-security-annou… | vendor-advisoryx_refsource_SUSE |
| https://security.gentoo.org/glsa/202011-06 | vendor-advisoryx_refsource_GENTOO |
| https://lists.debian.org/debian-lts-announce/2020… | mailing-listx_refsource_MLIST |
| https://lists.debian.org/debian-lts-announce/2020… | mailing-listx_refsource_MLIST |
| http://www.openwall.com/lists/oss-security/2021/01/19/6 | mailing-listx_refsource_MLIST |
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CVE-2020-27675 (GCVE-0-2020-27675)
Vulnerability from cvelistv5 – Published: 2020-10-22 20:32 – Updated: 2024-08-04 16:18
VLAI
EPSS
VEX
Summary
An issue was discovered in the Linux kernel through 5.9.1, as used with Xen through 4.14.x. drivers/xen/events/events_base.c allows event-channel removal during the event-handling loop (a race condition). This can cause a use-after-free or NULL pointer dereference, as demonstrated by a dom0 crash via events for an in-reconfiguration paravirtualized device, aka CID-073d0552ead5.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
10 references
| URL | Tags |
|---|---|
| https://xenbits.xen.org/xsa/advisory-331.html | x_refsource_MISC |
| https://github.com/torvalds/linux/commit/073d0552… | x_refsource_MISC |
| https://git.kernel.org/cgit/linux/kernel/git/torv… | x_refsource_MISC |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://security.gentoo.org/glsa/202011-06 | vendor-advisoryx_refsource_GENTOO |
| https://lists.debian.org/debian-lts-announce/2020… | mailing-listx_refsource_MLIST |
| https://lists.debian.org/debian-lts-announce/2020… | mailing-listx_refsource_MLIST |
| http://www.openwall.com/lists/oss-security/2021/01/19/3 | mailing-listx_refsource_MLIST |
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CVE-2020-27777 (GCVE-0-2020-27777)
Vulnerability from cvelistv5 – Published: 2020-12-15 16:57 – Updated: 2024-08-04 16:25
VLAI
EPSS
VEX
Summary
A flaw was found in the way RTAS handled memory accesses in userspace to kernel communication. On a locked down (usually due to Secure Boot) guest system running on top of PowerVM or KVM hypervisors (pseries platform) a root like local user could use this flaw to further increase their privileges to that of a running kernel.
Severity
No CVSS data available.
CWE
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1900844 | x_refsource_MISC |
| https://www.openwall.com/lists/oss-security/2020/… | x_refsource_MISC |
| https://www.openwall.com/lists/oss-security/2020/… | x_refsource_MISC |
| https://git.kernel.org/pub/scm/linux/kernel/git/p… | x_refsource_MISC |
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CVE-2020-27815 (GCVE-0-2020-27815)
Vulnerability from cvelistv5 – Published: 2021-05-26 12:18 – Updated: 2024-08-04 16:25
VLAI
EPSS
VEX
Summary
A flaw was found in the JFS filesystem code in the Linux Kernel which allows a local attacker with the ability to set extended attributes to panic the system, causing memory corruption or escalating privileges. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.
Severity
No CVSS data available.
CWE
Assigner
References
10 references
| URL | Tags |
|---|---|
| http://www.openwall.com/lists/oss-security/2020/11/30/5 | mailing-listx_refsource_MLIST |
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| https://bugzilla.redhat.com/show_bug.cgi?id=1897668%2C | x_refsource_MISC |
| https://www.openwall.com/lists/oss-security/2020/… | x_refsource_MISC |
| https://www.openwall.com/lists/oss-security/2020/… | x_refsource_MISC |
| https://git.kernel.org/pub/scm/linux/kernel/git/t… | x_refsource_MISC |
| https://security.netapp.com/advisory/ntap-2021070… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | Linux Kernel |
Affected:
5.9.6
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CVE-2020-27830 (GCVE-0-2020-27830)
Vulnerability from cvelistv5 – Published: 2021-05-13 14:15 – Updated: 2024-08-04 16:25
VLAI
EPSS
VEX
Summary
A vulnerability was found in Linux Kernel where in the spk_ttyio_receive_buf2() function, it would dereference spk_ttyio_synth without checking whether it is NULL or not, and may lead to a NULL-ptr deref crash.
Severity
No CVSS data available.
CWE
Assigner
References
6 references
| URL | Tags |
|---|---|
| http://www.openwall.com/lists/oss-security/2020/12/08/1 | mailing-listx_refsource_MLIST |
| http://www.openwall.com/lists/oss-security/2020/12/08/4 | mailing-listx_refsource_MLIST |
| https://www.debian.org/security/2021/dsa-4843 | vendor-advisoryx_refsource_DEBIAN |
| https://lists.debian.org/debian-lts-announce/2021… | mailing-listx_refsource_MLIST |
| https://bugzilla.redhat.com/show_bug.cgi?id=1919900 | x_refsource_MISC |
| https://security.netapp.com/advisory/ntap-2021062… | x_refsource_CONFIRM |
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CVE-2020-27835 (GCVE-0-2020-27835)
Vulnerability from cvelistv5 – Published: 2021-01-07 17:24 – Updated: 2024-08-04 16:25
VLAI
EPSS
VEX
Summary
A use after free in the Linux kernel infiniband hfi1 driver in versions prior to 5.10-rc6 was found in the way user calls Ioctl after open dev file and fork. A local user could use this flaw to crash the system.
Severity
No CVSS data available.
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1901709 | x_refsource_MISC |
Impacted products
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Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
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.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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