CVE-2021-36160
mod_proxy_uwsgi out of bound read
02 Description
mod_proxy_uwsgi out of bound read
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 62.88% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 99.1% of scored records. A rank, not a probability.
- NVD base score
- 7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVD analysis status
- Analyzed. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Moderate. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2021-09-16 14:40Z5 YR AGO
- Last updated
- 2024-08-04 00:47Z2 YR AGO
- Reserved
- 2021-07-06
- Assigning CNA
- apache
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-125Out-of-bounds ReadBase
- Data version
- 5.1
- Document digest
- 1607b916fca60c08a533148d3a4fc25e68656e2303f6a4c0fb7de06300a59dde
05 Affected products
06 References
- httpd.apache.orghttp://httpd.apache.org/security/vulnerabilities_24.html
- lists.apache.org[httpd-cvs] 20210916 [httpd-site] branch main updated: Revert "Add descriptions for CVE-2021-33193 CVE-2021-36160"https://lists.apache.org/thread.html/re4162adc051c1a0a79e7a24093f3776373e8733abaff57253fef341d%40%3Ccvs.httpd.apache.org%3E
- lists.apache.org[httpd-cvs] 20210916 [httpd-site] branch main updated: Add descriptions for CVE-2021-33193 CVE-2021-36160https://lists.apache.org/thread.html/ree7519d71415ecdd170ff1889cab552d71758d2ba2904a17ded21a70%40%3Ccvs.httpd.apache.org%3E
- lists.fedoraproject.orgFEDORA-2021-dce7e7738ehttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SPBR6WUYBJNACHKE65SPL7TJOHX7RHWD/
- lists.apache.org[httpd-users] 20210923 [users@httpd] 2.4.49 security fixes: more infohttps://lists.apache.org/thread.html/r82838efc5fa6fc4c73986399c9b71573589f78b31846aff5bd9b1697%40%3Cusers.httpd.apache.org%3E
- lists.apache.org[httpd-users] 20210923 Re: [users@httpd] 2.4.49 security fixes: more infohttps://lists.apache.org/thread.html/r82c077663f9759c7df5a6656f925b3ee4f55fcd33c889ba7cd687029%40%3Cusers.httpd.apache.org%3E
- lists.apache.org[httpd-users] 20210923 [users@httpd] Re: [External] : [users@httpd] 2.4.49 security fixes: more infohttps://lists.apache.org/thread.html/r3925e167d5eb1c75def3750c155d753064e1d34a143028bb32910432%40%3Cusers.httpd.apache.org%3E
- lists.apache.org[httpd-users] 20210923 Re: [users@httpd] Re: [External] : [users@httpd] 2.4.49 security fixes: more infohttps://lists.apache.org/thread.html/r61fdbfc26ab170f4e6492ef3bd5197c20b862ce156e9d5a54d4b899c%40%3Cusers.httpd.apache.org%3E
- lists.fedoraproject.orgFEDORA-2021-e3f6dd670dhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZNCYSR3BXT36FFF4XTCPL3HDQK4VP45R/
- lists.debian.org[debian-lts-announce] 20210929 [SECURITY] [DLA 2768-1] uwsgi security updatehttps://lists.debian.org/debian-lts-announce/2021/09/msg00016.html
- lists.apache.org[httpd-bugs] 20211005 [Bug 65616] New: CVE-2021-36160 regressionhttps://lists.apache.org/thread.html/ra1c05a392587bfe34383dffe1213edc425de8d4afc25b7cefab3e781%40%3Cbugs.httpd.apache.org%3E
- lists.apache.org[httpd-bugs] 20211005 [Bug 65616] CVE-2021-36160 regressionhttps://lists.apache.org/thread.html/r73260f6ba9fb52e43d860905fc90462ba5a814afda2d011f32bbd41c%40%3Cbugs.httpd.apache.org%3E
- lists.apache.org[httpd-bugs] 20211006 [Bug 65616] CVE-2021-36160 regressionhttps://lists.apache.org/thread.html/r7f2746e916ed370239bc1a1025e5ebbf345f79df9ea0ea39e44acfbb%40%3Cbugs.httpd.apache.org%3E
- lists.apache.org[httpd-bugs] 20211008 [Bug 65616] CVE-2021-36160 regressionhttps://lists.apache.org/thread.html/r2eb200ac1340f69aa22af61ab34780c531d110437910cb9c0ece3b37%40%3Cbugs.httpd.apache.org%3E
- lists.apache.org[httpd-bugs] 20211009 [Bug 65616] CVE-2021-36160 regressionhttps://lists.apache.org/thread.html/r94a61a1517133a19dcf40016e87454ea86e355d06a0cec4c778530f3%40%3Cbugs.httpd.apache.org%3E
- www.debian.orgDSA-4982https://www.debian.org/security/2021/dsa-4982
- lists.apache.org[httpd-bugs] 20211011 [Bug 65616] CVE-2021-36160 regressionhttps://lists.apache.org/thread.html/ra87a69d0703d09dc52b86e32b08f8d7327af10acdd5f577a4e82596a%40%3Cbugs.httpd.apache.org%3E
- lists.apache.org[httpd-bugs] 20211012 [Bug 65616] CVE-2021-36160 regressionhttps://lists.apache.org/thread.html/rb2341c8786d0f9924f5b666e82d8d170b4804f50a523d750551bef1a%40%3Cbugs.httpd.apache.org%3E
- lists.debian.org[debian-lts-announce] 20211020 [SECURITY] [DLA 2768-2] uwsgi regression updatehttps://lists.debian.org/debian-lts-announce/2021/10/msg00016.html
- tools.cisco.com20211124 Multiple Vulnerabilities in Apache HTTP Server Affecting Cisco Products: November 2021https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-httpd-2.4.49-VWL69sWQ
- www.oracle.comhttps://www.oracle.com/security-alerts/cpujan2022.html
- security.netapp.comhttps://security.netapp.com/advisory/ntap-20211008-0004/
- www.oracle.comhttps://www.oracle.com/security-alerts/cpuapr2022.html
- security.gentoo.orgGLSA-202208-20https://security.gentoo.org/glsa/202208-20
07 Fixed in
AlmaLinux 8
- httpd Fixed
A version is affected if any line below covers it.
- Affected before 2.4.37-47.module_el8.6.0+2872+fe0ff7aa.1.alma
- Affected before 2.4.37-47.module_el8.6.0+2935+fb177b09.2
- httpd-devel Fixed
A version is affected if any line below covers it.
- Affected before 2.4.37-47.module_el8.6.0+2872+fe0ff7aa.1.alma
- Affected before 2.4.37-47.module_el8.6.0+2935+fb177b09.2
- httpd-filesystem Fixed
A version is affected if any line below covers it.
- Affected before 2.4.37-47.module_el8.6.0+2872+fe0ff7aa.1.alma
- Affected before 2.4.37-47.module_el8.6.0+2935+fb177b09.2
- httpd-manual Fixed
A version is affected if any line below covers it.
- Affected before 2.4.37-47.module_el8.6.0+2872+fe0ff7aa.1.alma
- Affected before 2.4.37-47.module_el8.6.0+2935+fb177b09.2
- httpd-tools Fixed
A version is affected if any line below covers it.
- Affected before 2.4.37-47.module_el8.6.0+2872+fe0ff7aa.1.alma
- Affected before 2.4.37-47.module_el8.6.0+2935+fb177b09.2
- mod_http2 Fixed in 1.15.7-5.module_el8.6.0+2872+fe0ff7aa
- mod_ldap Fixed
A version is affected if any line below covers it.
- Affected before 2.4.37-47.module_el8.6.0+2872+fe0ff7aa.1.alma
- Affected before 2.4.37-47.module_el8.6.0+2935+fb177b09.2
- mod_md Fixed in 1:2.0.8-8.module_el8.6.0+2872+fe0ff7aa
- mod_proxy_html Fixed
A version is affected if any line below covers it.
- Affected before 1:2.4.37-47.module_el8.6.0+2872+fe0ff7aa.1.alma
- Affected before 1:2.4.37-47.module_el8.6.0+2935+fb177b09.2
- mod_session Fixed
A version is affected if any line below covers it.
- Affected before 2.4.37-47.module_el8.6.0+2872+fe0ff7aa.1.alma
- Affected before 2.4.37-47.module_el8.6.0+2935+fb177b09.2
- mod_ssl Fixed
A version is affected if any line below covers it.
- Affected before 1:2.4.37-47.module_el8.6.0+2872+fe0ff7aa.1.alma
- Affected before 1:2.4.37-47.module_el8.6.0+2935+fb177b09.2
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
Arch Linux
- apache Fixed in 2.4.49-1
Source: Arch Linux Security Tracker, the Arch Linux security team. Reformatted by exploit.cc.
CloudLinux 8
- httpd Fixed
A version is affected if any line below covers it.
- Affected before 2.4.37-47.module_el8.6.0+2872+fe0ff7aa.1.alma
- Affected before 2.4.37-47.module_el8.6.0+2935+fb177b09.2
- httpd-devel Fixed
A version is affected if any line below covers it.
- Affected before 2.4.37-47.module_el8.6.0+2872+fe0ff7aa.1.alma
- Affected before 2.4.37-47.module_el8.6.0+2935+fb177b09.2
- httpd-filesystem Fixed
A version is affected if any line below covers it.
- Affected before 2.4.37-47.module_el8.6.0+2872+fe0ff7aa.1.alma
- Affected before 2.4.37-47.module_el8.6.0+2935+fb177b09.2
- httpd-manual Fixed
A version is affected if any line below covers it.
- Affected before 2.4.37-47.module_el8.6.0+2872+fe0ff7aa.1.alma
- Affected before 2.4.37-47.module_el8.6.0+2935+fb177b09.2
- httpd-tools Fixed
A version is affected if any line below covers it.
- Affected before 2.4.37-47.module_el8.6.0+2872+fe0ff7aa.1.alma
- Affected before 2.4.37-47.module_el8.6.0+2935+fb177b09.2
- mod_http2 Fixed in 1.15.7-5.module_el8.6.0+2872+fe0ff7aa
- mod_ldap Fixed
A version is affected if any line below covers it.
- Affected before 2.4.37-47.module_el8.6.0+2872+fe0ff7aa.1.alma
- Affected before 2.4.37-47.module_el8.6.0+2935+fb177b09.2
- mod_md Fixed in 1:2.0.8-8.module_el8.6.0+2872+fe0ff7aa
- mod_proxy_html Fixed
A version is affected if any line below covers it.
- Affected before 1:2.4.37-47.module_el8.6.0+2872+fe0ff7aa.1.alma
- Affected before 1:2.4.37-47.module_el8.6.0+2935+fb177b09.2
- mod_session Fixed
A version is affected if any line below covers it.
- Affected before 2.4.37-47.module_el8.6.0+2872+fe0ff7aa.1.alma
- Affected before 2.4.37-47.module_el8.6.0+2935+fb177b09.2
- mod_ssl Fixed
A version is affected if any line below covers it.
- Affected before 1:2.4.37-47.module_el8.6.0+2872+fe0ff7aa.1.alma
- Affected before 1:2.4.37-47.module_el8.6.0+2935+fb177b09.2
Derived from AlmaLinux 8. Partial coverage: only packages taken from AlmaLinux 8 are listed.
Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
Debian 12
- apache2 Fixed in 2.4.49-1
- uwsgi No fix yet
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- apache2 Fixed in 2.4.49-1
- uwsgi No fix yet
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- apache2 Fixed in 2.4.49-1
- uwsgi No fix yet
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 20.04 LTS
- apache2 Fixed in 2.4.41-4ubuntu3.5
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.