Vulnerability-Lookup

RHSA-2022:1139

Vulnerability from csaf_redhat - Published: 2022-04-01 22:26 - Updated: 2026-11-05 09:23

Summary

Red Hat Security Advisory: httpd security update

Severity

Important

Notes

Topic: An update for httpd is now available for Red Hat Enterprise Linux 7.3 Advanced Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Details: The httpd packages provide the Apache HTTP Server, a powerful, efficient, and extensible web server. Security Fix(es): * httpd: mod_lua: Possible buffer overflow when parsing multipart content (CVE-2021-44790) * httpd: Errors encountered during the discarding of request body lead to HTTP request smuggling (CVE-2022-22720) 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.

Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.

CVE-2021-44790

A buffer overflow flaw in httpd's lua module could allow an out-of-bounds write. An attacker who is able to submit a crafted request to an httpd instance that is using the lua module may be able to cause an impact to confidentiality, integrity, and/or availability.

9.8 (Critical)


                
                  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CWE-787 - Out-of-bounds Write

Affected products

Fixed 11 products

Product	Version	Remediation
Unresolved product id: 7Server-7.3.AUS:httpd-0:2.4.6-45.el7_3.8.src	—	Vendor Fix fix Workaround
Unresolved product id: 7Server-7.3.AUS:httpd-0:2.4.6-45.el7_3.8.x86_64	—	Vendor Fix fix Workaround
Unresolved product id: 7Server-7.3.AUS:httpd-debuginfo-0:2.4.6-45.el7_3.8.x86_64	—	Vendor Fix fix Workaround
Unresolved product id: 7Server-7.3.AUS:httpd-devel-0:2.4.6-45.el7_3.8.x86_64	—	Vendor Fix fix Workaround
Unresolved product id: 7Server-7.3.AUS:httpd-manual-0:2.4.6-45.el7_3.8.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 7Server-7.3.AUS:httpd-tools-0:2.4.6-45.el7_3.8.x86_64	—	Vendor Fix fix Workaround
Unresolved product id: 7Server-7.3.AUS:mod_ssl-1:2.4.6-45.el7_3.8.x86_64	—	Vendor Fix fix Workaround
Unresolved product id: 7Server-optional-7.3.AUS:httpd-debuginfo-0:2.4.6-45.el7_3.8.x86_64	—	Vendor Fix fix Workaround
Unresolved product id: 7Server-optional-7.3.AUS:mod_ldap-0:2.4.6-45.el7_3.8.x86_64	—	Vendor Fix fix Workaround
Unresolved product id: 7Server-optional-7.3.AUS:mod_proxy_html-1:2.4.6-45.el7_3.8.x86_64	—	Vendor Fix fix Workaround
Unresolved product id: 7Server-optional-7.3.AUS:mod_session-0:2.4.6-45.el7_3.8.x86_64	—	Vendor Fix fix Workaround

Threats

Impact Important

CVE-2022-22720

A flaw was found in httpd. The inbound connection is not closed when it fails to discard the request body, which may expose the server to HTTP request smuggling.

8.3 (High)


                
                  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L

CWE-444 - Inconsistent Interpretation of HTTP Requests

Affected products

Fixed 11 products, the same list as for CVE-2021-44790

Threats

Impact Important

References

15 references

URL	Category
https://access.redhat.com/errata/RHSA-2022:1139	self
https://access.redhat.com/security/updates/classi…	external
https://bugzilla.redhat.com/show_bug.cgi?id=2034674	external
https://bugzilla.redhat.com/show_bug.cgi?id=2064321	external
https://security.access.redhat.com/data/csaf/v2/a…	self
https://access.redhat.com/security/cve/CVE-2021-44790	self
https://bugzilla.redhat.com/show_bug.cgi?id=2034674	external
https://www.cve.org/CVERecord?id=CVE-2021-44790	external
https://nvd.nist.gov/vuln/detail/CVE-2021-44790	external
http://httpd.apache.org/security/vulnerabilities_…	external
https://access.redhat.com/security/cve/CVE-2022-22720	self
https://bugzilla.redhat.com/show_bug.cgi?id=2064321	external
https://www.cve.org/CVERecord?id=CVE-2022-22720	external
https://nvd.nist.gov/vuln/detail/CVE-2022-22720	external
https://httpd.apache.org/security/vulnerabilities…	external

JSON

To clipboard

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  "vulnerabilities": [
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      "cwe": {
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        "name": "Out-of-bounds Write"
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      "discovery_date": "2021-12-20T00:00:00+00:00",
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      "notes": [
        {
          "category": "description",
          "text": "A buffer overflow flaw in httpd\u0027s lua module could allow an out-of-bounds write. An attacker who is able to submit a crafted request to an httpd instance that is using the lua module may be able to cause an impact to confidentiality, integrity, and/or availability.",
          "title": "Vulnerability description"
        },
        {
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          "text": "httpd: mod_lua: Possible buffer overflow when parsing multipart content",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "httpd as shipped in Red Hat Enterprise Linux 6 is NOT affected by this flaw because it does not ship mod_lua.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
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CVE-2021-44790 (GCVE-0-2021-44790)

Vulnerability from cvelistv5 – Published: 2021-12-20 00:00 – Updated: 2024-08-04 04:32

Title

Possible buffer overflow when parsing multipart content in mod_lua of Apache HTTP Server 2.4.51 and earlier

Summary

A carefully crafted request body can cause a buffer overflow in the mod_lua multipart parser (r:parsebody() called from Lua scripts). The Apache httpd team is not aware of an exploit for the vulnerabilty though it might be possible to craft one. This issue affects Apache HTTP Server 2.4.51 and earlier.

Severity

No CVSS data available.

CWE

CWE-787 - Out-of-bounds Write

Assigner

apache CNA under the mitre root

CNA scorecard B 76/100 over 1177 records in the last 180 days details

References

20 references

URL	Tags
http://httpd.apache.org/security/vulnerabilities_…
http://www.openwall.com/lists/oss-security/2021/12/20/4	mailing-list
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://www.debian.org/security/2022/dsa-5035	vendor-advisory
https://www.oracle.com/security-alerts/cpujan2022.html
https://security.netapp.com/advisory/ntap-2021122…
https://www.tenable.com/security/tns-2022-01
https://www.tenable.com/security/tns-2022-03
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://www.oracle.com/security-alerts/cpuapr2022.html
https://support.apple.com/kb/HT213257
https://support.apple.com/kb/HT213256
https://support.apple.com/kb/HT213255
http://seclists.org/fulldisclosure/2022/May/33	mailing-list
http://seclists.org/fulldisclosure/2022/May/35	mailing-list
http://seclists.org/fulldisclosure/2022/May/38	mailing-list
https://security.gentoo.org/glsa/202208-20	vendor-advisory
http://packetstormsecurity.com/files/171631/Apach…

Impacted products

1 product

Vendor	Product	Version
Apache Software Foundation	Apache HTTP Server	Affected: Apache HTTP Server 2.4 , ≤ 2.4.51 (custom)

Credits

Chamal Anonymous working with Trend Micro Zero Day Initiative

Show details on NVD website

JSON

To clipboard

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CVE-2022-22720 (GCVE-0-2022-22720)

Vulnerability from cvelistv5 – Published: 2022-03-14 10:15 – Updated: 2024-08-03 03:21

Title

HTTP request smuggling vulnerability in Apache HTTP Server 2.4.52 and earlier

Summary

Apache HTTP Server 2.4.52 and earlier fails to close inbound connection when errors are encountered discarding the request body, exposing the server to HTTP Request Smuggling

Severity

No CVSS data available.

CWE

CWE-444 - Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggling')

Assigner

apache CNA under the mitre root

CNA scorecard B 76/100 over 1177 records in the last 180 days details

References

16 references

URL	Tags
https://httpd.apache.org/security/vulnerabilities…	x_refsource_MISC
http://www.openwall.com/lists/oss-security/2022/03/14/3	mailing-listx_refsource_MLIST
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://lists.debian.org/debian-lts-announce/2022…	mailing-listx_refsource_MLIST
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://www.oracle.com/security-alerts/cpuapr2022.html	x_refsource_MISC
https://security.netapp.com/advisory/ntap-2022032…	x_refsource_CONFIRM
http://seclists.org/fulldisclosure/2022/May/33	mailing-listx_refsource_FULLDISC
http://seclists.org/fulldisclosure/2022/May/35	mailing-listx_refsource_FULLDISC
http://seclists.org/fulldisclosure/2022/May/38	mailing-listx_refsource_FULLDISC
https://www.oracle.com/security-alerts/cpujul2022.html	x_refsource_MISC
https://support.apple.com/kb/HT213257	x_refsource_CONFIRM
https://support.apple.com/kb/HT213256	x_refsource_CONFIRM
https://support.apple.com/kb/HT213255	x_refsource_CONFIRM
https://security.gentoo.org/glsa/202208-20	vendor-advisoryx_refsource_GENTOO

Impacted products

1 product

Vendor	Product	Version
Apache Software Foundation	Apache HTTP Server	Affected: Apache HTTP Server 2.4 , ≤ 2.4.52 (custom)

Credits

James Kettle <james.kettle portswigger.net>

Show details on NVD website

JSON

To clipboard

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              "name": "20220516 APPLE-SA-2022-05-16-3 macOS Big Sur 11.6.6",
              "refsource": "FULLDISC",
              "url": "http://seclists.org/fulldisclosure/2022/May/35"
            },
            {
              "name": "20220516 APPLE-SA-2022-05-16-2 macOS Monterey 12.4",
              "refsource": "FULLDISC",
              "url": "http://seclists.org/fulldisclosure/2022/May/38"
            },
            {
              "name": "https://www.oracle.com/security-alerts/cpujul2022.html",
              "refsource": "MISC",
              "url": "https://www.oracle.com/security-alerts/cpujul2022.html"
            },
            {
              "name": "https://support.apple.com/kb/HT213257",
              "refsource": "CONFIRM",
              "url": "https://support.apple.com/kb/HT213257"
            },
            {
              "name": "https://support.apple.com/kb/HT213256",
              "refsource": "CONFIRM",
              "url": "https://support.apple.com/kb/HT213256"
            },
            {
              "name": "https://support.apple.com/kb/HT213255",
              "refsource": "CONFIRM",
              "url": "https://support.apple.com/kb/HT213255"
            },
            {
              "name": "GLSA-202208-20",
              "refsource": "GENTOO",
              "url": "https://security.gentoo.org/glsa/202208-20"
            }
          ]
        },
        "source": {
          "discovery": "UNKNOWN"
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09",
    "assignerShortName": "apache",
    "cveId": "CVE-2022-22720",
    "datePublished": "2022-03-14T10:15:29.000Z",
    "dateReserved": "2022-01-06T00:00:00.000Z",
    "dateUpdated": "2024-08-03T03:21:48.980Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.

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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RHSA-2022:1139

CVE-2021-44790 (GCVE-0-2021-44790)

CVE-2022-22720 (GCVE-0-2022-22720)

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Sightings

Nomenclature

Vulnerability timeline

Related by attack behaviour