CVE-2021-39275

ap_escape_quotes() may write beyond the end of a buffer when given malicious input. No included modules pass untrusted data to these functions, but third-party / external modules may. This issue affects Apache HTTP Server 2.4.48 and earlier.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 98%
Affected Products (NVD)
VendorProductVersion
apachehttp_server
𝑥
< 2.4.49
debiandebian_linux
9.0
debiandebian_linux
10.0
debiandebian_linux
11.0
netappcloud_backup
-
netappclustered_data_ontap
-
netappstoragegrid
-
oraclehttp_server
12.2.1.3.0
oraclehttp_server
12.2.1.4.0
oracleinstantis_enterprisetrack
17.1
oracleinstantis_enterprisetrack
17.2
oracleinstantis_enterprisetrack
17.3
oraclezfs_storage_appliance_kit
8.8
siemenssinec_nms
*
siemenssinema_server
14.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
apache2
bookworm
2.4.62-1~deb12u1
fixed
bookworm (security)
2.4.62-1~deb12u2
fixed
bullseye
2.4.62-1~deb11u1
fixed
bullseye (security)
2.4.62-1~deb11u2
fixed
sid
2.4.62-3
fixed
trixie
2.4.62-3
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
apache2
bionic
Fixed 2.4.29-1ubuntu4.17
released
focal
Fixed 2.4.41-4ubuntu3.5
released
hirsute
Fixed 2.4.46-4ubuntu1.2
released
impish
Fixed 2.4.48-3.1ubuntu2
released
jammy
Fixed 2.4.48-3.1ubuntu2
released
trusty
Fixed 2.4.7-1ubuntu4.22+esm2
released
xenial
Fixed 2.4.18-2ubuntu3.17+esm2
released
openSUSE logo
openSUSE / SLES Releases
openSUSE Product
Release
apache2
suse enterprise desktop 15 SP2
2.4.43-3.32.1
fixed
suse enterprise desktop 15 SP3
2.4.43-3.32.1
fixed
suse enterprise desktop 15 SP4
2.4.51-150400.4.6
fixed
suse enterprise desktop 15 SP5
2.4.51-150400.6.11.1
fixed
suse enterprise sap 12 SP3
2.4.23-29.80.1
fixed
suse enterprise sap 12 SP4
2.4.23-29.80.1
fixed
suse enterprise sap 12 SP5
2.4.23-29.80.1
fixed
suse enterprise sap 15
2.4.33-3.55.1
fixed
suse enterprise sap 15 SP1
2.4.33-3.55.1
fixed
suse enterprise sap 15 SP2
2.4.43-3.32.1
fixed
suse enterprise sap 15 SP3
2.4.43-3.32.1
fixed
suse enterprise sap 15 SP4
2.4.51-150400.4.6
fixed
suse enterprise sap 15 SP5
2.4.51-150400.6.11.1
fixed
suse enterprise server 12 SP2
2.4.23-29.80.1
fixed
suse enterprise server 12 SP3
2.4.23-29.80.1
fixed
suse enterprise server 12 SP4
2.4.23-29.80.1
fixed
suse enterprise server 12 SP5
2.4.23-29.80.1
fixed
suse enterprise server 15
2.4.33-3.55.1
fixed
suse enterprise server 15 SP1
2.4.33-3.55.1
fixed
suse enterprise server 15 SP2
2.4.43-3.32.1
fixed
suse enterprise server 15 SP3
2.4.43-3.32.1
fixed
suse enterprise server 15 SP4
2.4.51-150400.4.6
fixed
suse enterprise server 15 SP5
2.4.51-150400.6.11.1
fixed
apache2-devel
suse enterprise sap 15
2.4.33-3.55.1
fixed
suse enterprise sap 15 SP1
2.4.33-3.55.1
fixed
suse enterprise sap 15 SP2
2.4.43-3.32.1
fixed
suse enterprise sap 15 SP3
2.4.43-3.32.1
fixed
suse enterprise sap 15 SP4
2.4.51-150400.4.6
fixed
suse enterprise server 15
2.4.33-3.55.1
fixed
suse enterprise server 15 SP1
2.4.33-3.55.1
fixed
suse enterprise server 15 SP2
2.4.43-3.32.1
fixed
suse enterprise server 15 SP3
2.4.43-3.32.1
fixed
suse enterprise server 15 SP4
2.4.51-150400.4.6
fixed
apache2-doc
suse enterprise sap 12 SP3
2.4.23-29.80.1
fixed
suse enterprise sap 12 SP4
2.4.23-29.80.1
fixed
suse enterprise sap 12 SP5
2.4.23-29.80.1
fixed
suse enterprise sap 15
2.4.33-3.55.1
fixed
suse enterprise sap 15 SP1
2.4.33-3.55.1
fixed
suse enterprise sap 15 SP2
2.4.43-3.32.1
fixed
suse enterprise sap 15 SP3
2.4.43-3.32.1
fixed
suse enterprise sap 15 SP4
2.4.51-150400.4.6
fixed
suse enterprise server 12 SP2
2.4.23-29.80.1
fixed
suse enterprise server 12 SP3
2.4.23-29.80.1
fixed
suse enterprise server 12 SP4
2.4.23-29.80.1
fixed
suse enterprise server 12 SP5
2.4.23-29.80.1
fixed
suse enterprise server 15
2.4.33-3.55.1
fixed
suse enterprise server 15 SP1
2.4.33-3.55.1
fixed
suse enterprise server 15 SP2
2.4.43-3.32.1
fixed
suse enterprise server 15 SP3
2.4.43-3.32.1
fixed
suse enterprise server 15 SP4
2.4.51-150400.4.6
fixed
apache2-example-pages
suse enterprise sap 12 SP3
2.4.23-29.80.1
fixed
suse enterprise sap 12 SP4
2.4.23-29.80.1
fixed
suse enterprise sap 12 SP5
2.4.23-29.80.1
fixed
suse enterprise server 12 SP2
2.4.23-29.80.1
fixed
suse enterprise server 12 SP3
2.4.23-29.80.1
fixed
suse enterprise server 12 SP4
2.4.23-29.80.1
fixed
suse enterprise server 12 SP5
2.4.23-29.80.1
fixed
apache2-prefork
suse enterprise desktop 15 SP2
2.4.43-3.32.1
fixed
suse enterprise desktop 15 SP3
2.4.43-3.32.1
fixed
suse enterprise desktop 15 SP4
2.4.51-150400.4.6
fixed
suse enterprise desktop 15 SP5
2.4.51-150400.6.11.1
fixed
suse enterprise sap 12 SP3
2.4.23-29.80.1
fixed
suse enterprise sap 12 SP4
2.4.23-29.80.1
fixed
suse enterprise sap 12 SP5
2.4.23-29.80.1
fixed
suse enterprise sap 15
2.4.33-3.55.1
fixed
suse enterprise sap 15 SP1
2.4.33-3.55.1
fixed
suse enterprise sap 15 SP2
2.4.43-3.32.1
fixed
suse enterprise sap 15 SP3
2.4.43-3.32.1
fixed
suse enterprise sap 15 SP4
2.4.51-150400.4.6
fixed
suse enterprise sap 15 SP5
2.4.51-150400.6.11.1
fixed
suse enterprise server 12 SP2
2.4.23-29.80.1
fixed
suse enterprise server 12 SP3
2.4.23-29.80.1
fixed
suse enterprise server 12 SP4
2.4.23-29.80.1
fixed
suse enterprise server 12 SP5
2.4.23-29.80.1
fixed
suse enterprise server 15
2.4.33-3.55.1
fixed
suse enterprise server 15 SP1
2.4.33-3.55.1
fixed
suse enterprise server 15 SP2
2.4.43-3.32.1
fixed
suse enterprise server 15 SP3
2.4.43-3.32.1
fixed
suse enterprise server 15 SP4
2.4.51-150400.4.6
fixed
suse enterprise server 15 SP5
2.4.51-150400.6.11.1
fixed
apache2-utils
suse enterprise desktop 15 SP2
2.4.43-3.32.1
fixed
suse enterprise desktop 15 SP3
2.4.43-3.32.1
fixed
suse enterprise desktop 15 SP4
2.4.51-150400.4.6
fixed
suse enterprise desktop 15 SP5
2.4.51-150400.6.11.1
fixed
suse enterprise sap 12 SP3
2.4.23-29.80.1
fixed
suse enterprise sap 12 SP4
2.4.23-29.80.1
fixed
suse enterprise sap 12 SP5
2.4.23-29.80.1
fixed
suse enterprise sap 15
2.4.33-3.55.1
fixed
suse enterprise sap 15 SP1
2.4.33-3.55.1
fixed
suse enterprise sap 15 SP2
2.4.43-3.32.1
fixed
suse enterprise sap 15 SP3
2.4.43-3.32.1
fixed
suse enterprise sap 15 SP4
2.4.51-150400.4.6
fixed
suse enterprise sap 15 SP5
2.4.51-150400.6.11.1
fixed
suse enterprise server 12 SP2
2.4.23-29.80.1
fixed
suse enterprise server 12 SP3
2.4.23-29.80.1
fixed
suse enterprise server 12 SP4
2.4.23-29.80.1
fixed
suse enterprise server 12 SP5
2.4.23-29.80.1
fixed
suse enterprise server 15
2.4.33-3.55.1
fixed
suse enterprise server 15 SP1
2.4.33-3.55.1
fixed
suse enterprise server 15 SP2
2.4.43-3.32.1
fixed
suse enterprise server 15 SP3
2.4.43-3.32.1
fixed
suse enterprise server 15 SP4
2.4.51-150400.4.6
fixed
suse enterprise server 15 SP5
2.4.51-150400.6.11.1
fixed
apache2-worker
suse enterprise sap 12 SP3
2.4.23-29.80.1
fixed
suse enterprise sap 12 SP4
2.4.23-29.80.1
fixed
suse enterprise sap 12 SP5
2.4.23-29.80.1
fixed
suse enterprise sap 15
2.4.33-3.55.1
fixed
suse enterprise sap 15 SP1
2.4.33-3.55.1
fixed
suse enterprise sap 15 SP2
2.4.43-3.32.1
fixed
suse enterprise sap 15 SP3
2.4.43-3.32.1
fixed
suse enterprise sap 15 SP4
2.4.51-150400.4.6
fixed
suse enterprise server 12 SP2
2.4.23-29.80.1
fixed
suse enterprise server 12 SP3
2.4.23-29.80.1
fixed
suse enterprise server 12 SP4
2.4.23-29.80.1
fixed
suse enterprise server 12 SP5
2.4.23-29.80.1
fixed
suse enterprise server 15
2.4.33-3.55.1
fixed
suse enterprise server 15 SP1
2.4.33-3.55.1
fixed
suse enterprise server 15 SP2
2.4.43-3.32.1
fixed
suse enterprise server 15 SP3
2.4.43-3.32.1
fixed
suse enterprise server 15 SP4
2.4.51-150400.4.6
fixed
Red Hat logo
Red Hat Enterprise Linux Releases
Red Hat Product
Release
httpd
RHEL 7
0:2.4.6-97.el7_9.4
fixed
httpd-devel
RHEL 7
0:2.4.6-97.el7_9.4
fixed
httpd-manual
RHEL 7
0:2.4.6-97.el7_9.4
fixed
httpd-tools
RHEL 7
0:2.4.6-97.el7_9.4
fixed
mod
RHEL 7
1:2.4.6-97.el7_9.4
fixed
Amazon Linux logo
Amazon Linux Releases
Amazon Package
Release
httpd
Amazon Linux 2
0:2.4.51-1.amzn2
fixed
httpd-debuginfo
Amazon Linux 2
0:2.4.51-1.amzn2
fixed
httpd-devel
Amazon Linux 2
0:2.4.51-1.amzn2
fixed
httpd-filesystem
Amazon Linux 2
0:2.4.51-1.amzn2
fixed
httpd-manual
Amazon Linux 2
0:2.4.51-1.amzn2
fixed
httpd-tools
Amazon Linux 2
0:2.4.51-1.amzn2
fixed
httpd24
Amazon Linux 1
0:2.4.51-1.94.amzn1
fixed
httpd24-debuginfo
Amazon Linux 1
0:2.4.51-1.94.amzn1
fixed
httpd24-devel
Amazon Linux 1
0:2.4.51-1.94.amzn1
fixed
httpd24-manual
Amazon Linux 1
0:2.4.51-1.94.amzn1
fixed
httpd24-tools
Amazon Linux 1
0:2.4.51-1.94.amzn1
fixed
mod24_ldap
Amazon Linux 1
0:2.4.51-1.94.amzn1
fixed
mod24_md
Amazon Linux 1
0:2.4.51-1.94.amzn1
fixed
mod24_proxy_html
Amazon Linux 1
1:2.4.51-1.94.amzn1
fixed
mod24_session
Amazon Linux 1
0:2.4.51-1.94.amzn1
fixed
mod24_ssl
Amazon Linux 1
1:2.4.51-1.94.amzn1
fixed
mod_ldap
Amazon Linux 2
0:2.4.51-1.amzn2
fixed
mod_md
Amazon Linux 2
0:2.4.51-1.amzn2
fixed
mod_proxy_html
Amazon Linux 2
1:2.4.51-1.amzn2
fixed
mod_session
Amazon Linux 2
0:2.4.51-1.amzn2
fixed
mod_ssl
Amazon Linux 2
1:2.4.51-1.amzn2
fixed
Azure Linux logo
Azure Linux Releases
Azure Package
Release
httpd
CBL-Mariner 1.0
0:2.4.49-1.cm1
fixed
CBL-Mariner 2.0
0:2.4.52-1.cm2
fixed
Common Weakness Enumeration
References
https://cert-portal.siemens.com/productcert/pdf/ssa-685781.pdf
https://httpd.apache.org/security/vulnerabilities_24.html
https://lists.apache.org/thread.html/r3925e167d5eb1c75def3750c155d753064e1d34a143028bb32910432%40%3Cusers.httpd.apache.org%3E
https://lists.apache.org/thread.html/r61fdbfc26ab170f4e6492ef3bd5197c20b862ce156e9d5a54d4b899c%40%3Cusers.httpd.apache.org%3E
https://lists.apache.org/thread.html/r82838efc5fa6fc4c73986399c9b71573589f78b31846aff5bd9b1697%40%3Cusers.httpd.apache.org%3E
https://lists.apache.org/thread.html/r82c077663f9759c7df5a6656f925b3ee4f55fcd33c889ba7cd687029%40%3Cusers.httpd.apache.org%3E
https://lists.debian.org/debian-lts-announce/2021/10/msg00001.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SPBR6WUYBJNACHKE65SPL7TJOHX7RHWD/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZNCYSR3BXT36FFF4XTCPL3HDQK4VP45R/
https://security.gentoo.org/glsa/202208-20
https://security.netapp.com/advisory/ntap-20211008-0004/
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-httpd-2.4.49-VWL69sWQ
https://www.debian.org/security/2021/dsa-4982
https://www.oracle.com/security-alerts/cpuapr2022.html
https://www.oracle.com/security-alerts/cpujan2022.html
https://cert-portal.siemens.com/productcert/pdf/ssa-685781.pdf
https://httpd.apache.org/security/vulnerabilities_24.html
https://lists.apache.org/thread.html/r3925e167d5eb1c75def3750c155d753064e1d34a143028bb32910432%40%3Cusers.httpd.apache.org%3E
https://lists.apache.org/thread.html/r61fdbfc26ab170f4e6492ef3bd5197c20b862ce156e9d5a54d4b899c%40%3Cusers.httpd.apache.org%3E
https://lists.apache.org/thread.html/r82838efc5fa6fc4c73986399c9b71573589f78b31846aff5bd9b1697%40%3Cusers.httpd.apache.org%3E
https://lists.apache.org/thread.html/r82c077663f9759c7df5a6656f925b3ee4f55fcd33c889ba7cd687029%40%3Cusers.httpd.apache.org%3E
https://lists.debian.org/debian-lts-announce/2021/10/msg00001.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SPBR6WUYBJNACHKE65SPL7TJOHX7RHWD/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZNCYSR3BXT36FFF4XTCPL3HDQK4VP45R/
https://security.gentoo.org/glsa/202208-20
https://security.netapp.com/advisory/ntap-20211008-0004/
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-httpd-2.4.49-VWL69sWQ
https://www.debian.org/security/2021/dsa-4982
https://www.oracle.com/security-alerts/cpuapr2022.html
https://www.oracle.com/security-alerts/cpujan2022.html