CVE-2021-39275

CRITICAL

9.8

Description

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.

CVE Details

CVSS v3.1 Score9.8

SeverityCRITICAL

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

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published9/16/2021

Last Modified5/1/2025

Sourcenvd

Honeypot Sightings0

Affected Products

apache:http_serverdebian:debian_linuxfedoraproject:fedoranetapp:cloud_backupnetapp:clustered_data_ontapnetapp:storagegridoracle:http_serveroracle:instantis_enterprisetrackoracle:zfs_storage_appliance_kitsiemens:sinec_nmssiemens:sinema_server

Weaknesses (CWE)

CWE-787

References

https://cert-portal.siemens.com/productcert/pdf/ssa-685781.pdf(security@apache.org)

https://httpd.apache.org/security/vulnerabilities_24.html(security@apache.org)

https://lists.apache.org/thread.html/r3925e167d5eb1c75def3750c155d753064e1d34a143028bb32910432%40%3Cusers.httpd.apache.org%3E(security@apache.org)

https://lists.apache.org/thread.html/r61fdbfc26ab170f4e6492ef3bd5197c20b862ce156e9d5a54d4b899c%40%3Cusers.httpd.apache.org%3E(security@apache.org)

https://lists.apache.org/thread.html/r82838efc5fa6fc4c73986399c9b71573589f78b31846aff5bd9b1697%40%3Cusers.httpd.apache.org%3E(security@apache.org)

https://lists.apache.org/thread.html/r82c077663f9759c7df5a6656f925b3ee4f55fcd33c889ba7cd687029%40%3Cusers.httpd.apache.org%3E(security@apache.org)

https://lists.debian.org/debian-lts-announce/2021/10/msg00001.html(security@apache.org)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SPBR6WUYBJNACHKE65SPL7TJOHX7RHWD/(security@apache.org)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZNCYSR3BXT36FFF4XTCPL3HDQK4VP45R/(security@apache.org)

https://security.gentoo.org/glsa/202208-20(security@apache.org)

https://security.netapp.com/advisory/ntap-20211008-0004/(security@apache.org)

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-httpd-2.4.49-VWL69sWQ(security@apache.org)

https://www.debian.org/security/2021/dsa-4982(security@apache.org)

https://www.oracle.com/security-alerts/cpuapr2022.html(security@apache.org)

https://www.oracle.com/security-alerts/cpujan2022.html(security@apache.org)

https://cert-portal.siemens.com/productcert/pdf/ssa-685781.pdf(af854a3a-2127-422b-91ae-364da2661108)

https://httpd.apache.org/security/vulnerabilities_24.html(af854a3a-2127-422b-91ae-364da2661108)

https://lists.apache.org/thread.html/r3925e167d5eb1c75def3750c155d753064e1d34a143028bb32910432%40%3Cusers.httpd.apache.org%3E(af854a3a-2127-422b-91ae-364da2661108)

https://lists.apache.org/thread.html/r61fdbfc26ab170f4e6492ef3bd5197c20b862ce156e9d5a54d4b899c%40%3Cusers.httpd.apache.org%3E(af854a3a-2127-422b-91ae-364da2661108)

https://lists.apache.org/thread.html/r82838efc5fa6fc4c73986399c9b71573589f78b31846aff5bd9b1697%40%3Cusers.httpd.apache.org%3E(af854a3a-2127-422b-91ae-364da2661108)

https://lists.apache.org/thread.html/r82c077663f9759c7df5a6656f925b3ee4f55fcd33c889ba7cd687029%40%3Cusers.httpd.apache.org%3E(af854a3a-2127-422b-91ae-364da2661108)

https://lists.debian.org/debian-lts-announce/2021/10/msg00001.html(af854a3a-2127-422b-91ae-364da2661108)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SPBR6WUYBJNACHKE65SPL7TJOHX7RHWD/(af854a3a-2127-422b-91ae-364da2661108)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZNCYSR3BXT36FFF4XTCPL3HDQK4VP45R/(af854a3a-2127-422b-91ae-364da2661108)

https://security.gentoo.org/glsa/202208-20(af854a3a-2127-422b-91ae-364da2661108)

https://security.netapp.com/advisory/ntap-20211008-0004/(af854a3a-2127-422b-91ae-364da2661108)

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-httpd-2.4.49-VWL69sWQ(af854a3a-2127-422b-91ae-364da2661108)

https://www.debian.org/security/2021/dsa-4982(af854a3a-2127-422b-91ae-364da2661108)

https://www.oracle.com/security-alerts/cpuapr2022.html(af854a3a-2127-422b-91ae-364da2661108)

https://www.oracle.com/security-alerts/cpujan2022.html(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.