CVE-2016-4975

Possible CRLF injection allowing HTTP response splitting attacks for sites which use mod_userdir. This issue was mitigated by changes made in 2.4.25 and 2.2.32 which prohibit CR or LF injection into the "Location" or other outbound header key or value. Fixed in Apache HTTP Server 2.4.25 (Affected 2.4.1-2.4.23). Fixed in Apache HTTP Server 2.2.32 (Affected 2.2.0-2.2.31).
CRLF Injection
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
6.1 MEDIUM
NETWORK
LOW
NONE
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 98%
Affected Products (NVD)
VendorProductVersion
apachehttp_server
2.2.0
apachehttp_server
2.2.2
apachehttp_server
2.2.3
apachehttp_server
2.2.4
apachehttp_server
2.2.6
apachehttp_server
2.2.8
apachehttp_server
2.2.9
apachehttp_server
2.2.10
apachehttp_server
2.2.11
apachehttp_server
2.2.12
apachehttp_server
2.2.13
apachehttp_server
2.2.14
apachehttp_server
2.2.15
apachehttp_server
2.2.16
apachehttp_server
2.2.17
apachehttp_server
2.2.18
apachehttp_server
2.2.19
apachehttp_server
2.2.20
apachehttp_server
2.2.21
apachehttp_server
2.2.22
apachehttp_server
2.2.23
apachehttp_server
2.2.24
apachehttp_server
2.2.25
apachehttp_server
2.2.26
apachehttp_server
2.2.27
apachehttp_server
2.2.29
apachehttp_server
2.2.31
apachehttp_server
2.4.1
apachehttp_server
2.4.2
apachehttp_server
2.4.3
apachehttp_server
2.4.4
apachehttp_server
2.4.6
apachehttp_server
2.4.7
apachehttp_server
2.4.9
apachehttp_server
2.4.10
apachehttp_server
2.4.12
apachehttp_server
2.4.16
apachehttp_server
2.4.17
apachehttp_server
2.4.18
apachehttp_server
2.4.20
apachehttp_server
2.4.23
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
not-affected
cosmic
not-affected
disco
not-affected
trusty
Fixed 2.4.7-1ubuntu4.15
released
xenial
Fixed 2.4.18-2ubuntu3.2
released
openSUSE logo
openSUSE / SLES Releases
openSUSE Product
Release
apache2
suse enterprise sap 12 SP3
2.4.23-29.24.1
fixed
suse enterprise sap 12 SP5
2.4.23-29.43.1
fixed
suse enterprise server 12 SP1
2.4.16-20.19.1
fixed
suse enterprise server 12 SP2
2.4.23-29.24.1
fixed
suse enterprise server 12 SP3
2.4.23-29.24.1
fixed
suse enterprise server 12 SP5
2.4.23-29.43.1
fixed
apache2-doc
suse enterprise sap 12 SP3
2.4.23-29.24.1
fixed
suse enterprise sap 12 SP5
2.4.23-29.43.1
fixed
suse enterprise server 12 SP1
2.4.16-20.19.1
fixed
suse enterprise server 12 SP2
2.4.23-29.24.1
fixed
suse enterprise server 12 SP3
2.4.23-29.24.1
fixed
suse enterprise server 12 SP5
2.4.23-29.43.1
fixed
apache2-example-pages
suse enterprise sap 12 SP3
2.4.23-29.24.1
fixed
suse enterprise sap 12 SP5
2.4.23-29.43.1
fixed
suse enterprise server 12 SP1
2.4.16-20.19.1
fixed
suse enterprise server 12 SP2
2.4.23-29.24.1
fixed
suse enterprise server 12 SP3
2.4.23-29.24.1
fixed
suse enterprise server 12 SP5
2.4.23-29.43.1
fixed
apache2-prefork
suse enterprise sap 12 SP3
2.4.23-29.24.1
fixed
suse enterprise sap 12 SP5
2.4.23-29.43.1
fixed
suse enterprise server 12 SP1
2.4.16-20.19.1
fixed
suse enterprise server 12 SP2
2.4.23-29.24.1
fixed
suse enterprise server 12 SP3
2.4.23-29.24.1
fixed
suse enterprise server 12 SP5
2.4.23-29.43.1
fixed
apache2-utils
suse enterprise sap 12 SP3
2.4.23-29.24.1
fixed
suse enterprise sap 12 SP5
2.4.23-29.43.1
fixed
suse enterprise server 12 SP1
2.4.16-20.19.1
fixed
suse enterprise server 12 SP2
2.4.23-29.24.1
fixed
suse enterprise server 12 SP3
2.4.23-29.24.1
fixed
suse enterprise server 12 SP5
2.4.23-29.43.1
fixed
apache2-worker
suse enterprise sap 12 SP3
2.4.23-29.24.1
fixed
suse enterprise sap 12 SP5
2.4.23-29.43.1
fixed
suse enterprise server 12 SP1
2.4.16-20.19.1
fixed
suse enterprise server 12 SP2
2.4.23-29.24.1
fixed
suse enterprise server 12 SP3
2.4.23-29.24.1
fixed
suse enterprise server 12 SP5
2.4.23-29.43.1
fixed
Red Hat logo
Red Hat Enterprise Linux Releases
Red Hat Product
Release
httpd
RHEL 7
0:2.4.6-45.el7_3.4
fixed
httpd-devel
RHEL 7
0:2.4.6-45.el7_3.4
fixed
httpd-manual
RHEL 7
0:2.4.6-45.el7_3.4
fixed
httpd-tools
RHEL 7
0:2.4.6-45.el7_3.4
fixed
mod
RHEL 7
1:2.4.6-45.el7_3.4
fixed
Common Weakness Enumeration
References
http://www.securityfocus.com/bid/105093
https://httpd.apache.org/security/vulnerabilities_22.html#CVE-2016-4975
https://httpd.apache.org/security/vulnerabilities_24.html#CVE-2016-4975
https://lists.apache.org/thread.html/56c2e7cc9deb1c12a843d0dc251ea7fd3e7e80293cde02fcd65286ba%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/84a3714f0878781f6ed84473d1a503d2cc382277e100450209231830%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/8d63cb8e9100f28a99429b4328e4e7cebce861d5772ac9863ba2ae6f%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/f7f95ac1cd9895db2714fa3ebaa0b94d0c6df360f742a40951384a53%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/r04e89e873d54116a0635ef2f7061c15acc5ed27ef7500997beb65d6f%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/r57608dc51b79102f3952ae06f54d5277b649c86d6533dcd6a7d201f7%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/r75cbe9ea3e2114e4271bbeca7aff96117b50c1b6eb7c4772b0337c1f%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/r9ea3538f229874c80a10af473856a81fbf5f694cd7f471cc679ba70b%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/rb14daf9cc4e28d18cdc15d6a6ca74e565672fabf7ad89541071d008b%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/rc998b18880df98bafaade071346690c2bc1444adaa1a1ea464b93f0a%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/rcc44594d4d6579b90deccd4536b5d31f099ef563df39b094be286b9e%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/rd18c3c43602e66f9cdcf09f1de233804975b9572b0456cc582390b6f%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/rd336919f655b7ff309385e34a143e41c503e133da80414485b3abcc9%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/rdca61ae990660bacb682295f2a09d34612b7bb5f457577fe17f4d064%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/re1e3a24664d35bcd0a0e793e0b5fc6ca6c107f99a1b2c545c5d4b467%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/re3d27b6250aa8548b8845d314bb8a350b3df326cacbbfdfe4d455234%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/rfbaf647d52c1cb843e726a0933f156366a806cead84fbd430951591b%40%3Ccvs.httpd.apache.org%3E
https://security.netapp.com/advisory/ntap-20180926-0006/
https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03908en_us
http://www.securityfocus.com/bid/105093
https://httpd.apache.org/security/vulnerabilities_22.html#CVE-2016-4975
https://httpd.apache.org/security/vulnerabilities_24.html#CVE-2016-4975
https://lists.apache.org/thread.html/56c2e7cc9deb1c12a843d0dc251ea7fd3e7e80293cde02fcd65286ba%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/84a3714f0878781f6ed84473d1a503d2cc382277e100450209231830%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/8d63cb8e9100f28a99429b4328e4e7cebce861d5772ac9863ba2ae6f%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/f7f95ac1cd9895db2714fa3ebaa0b94d0c6df360f742a40951384a53%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/r04e89e873d54116a0635ef2f7061c15acc5ed27ef7500997beb65d6f%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/r57608dc51b79102f3952ae06f54d5277b649c86d6533dcd6a7d201f7%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/r75cbe9ea3e2114e4271bbeca7aff96117b50c1b6eb7c4772b0337c1f%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/r9ea3538f229874c80a10af473856a81fbf5f694cd7f471cc679ba70b%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/rb14daf9cc4e28d18cdc15d6a6ca74e565672fabf7ad89541071d008b%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/rc998b18880df98bafaade071346690c2bc1444adaa1a1ea464b93f0a%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/rcc44594d4d6579b90deccd4536b5d31f099ef563df39b094be286b9e%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/rd18c3c43602e66f9cdcf09f1de233804975b9572b0456cc582390b6f%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/rd336919f655b7ff309385e34a143e41c503e133da80414485b3abcc9%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/rdca61ae990660bacb682295f2a09d34612b7bb5f457577fe17f4d064%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/re1e3a24664d35bcd0a0e793e0b5fc6ca6c107f99a1b2c545c5d4b467%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/re3d27b6250aa8548b8845d314bb8a350b3df326cacbbfdfe4d455234%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/rfbaf647d52c1cb843e726a0933f156366a806cead84fbd430951591b%40%3Ccvs.httpd.apache.org%3E
https://security.netapp.com/advisory/ntap-20180926-0006/
https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03908en_us