Description
The HTTP strict parsing changes added in Apache httpd 2.2.32 and 2.4.24 introduced a bug in token list parsing, which allows ap_find_token() to search past the end of its input string. By maliciously crafting a sequence of request headers, an attacker may be able to cause a segmentation fault, or to force ap_find_token() to return an incorrect value.
References (35)
Core 35
Core References
Third Party Advisory x_refsource_confirm
https://support.apple.com/HT208221
Third Party Advisory vendor-advisory
x_refsource_redhat
https://access.redhat.com/errata/RHSA-2017:2479
Mailing List mailing-list
x_refsource_mlist
https://lists.apache.org/thread.html/55a068b6a5eec0b3198ae7d96a7cb412352d0ffa7716612c5af3745b%40%3Cdev.httpd.apache.org%3E
Third Party Advisory vendor-advisory
x_refsource_redhat
https://access.redhat.com/errata/RHSA-2017:2483
Third Party Advisory x_refsource_confirm
https://security.netapp.com/advisory/ntap-20180601-0002/
Third Party Advisory x_refsource_confirm
https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03908en_us
Third Party Advisory x_refsource_confirm
https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03821en_us
Patch, Third Party Advisory x_refsource_confirm
http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/99137
Third Party Advisory vendor-advisory
x_refsource_debian
http://www.debian.org/security/2017/dsa-3896
Third Party Advisory vendor-advisory
x_refsource_redhat
https://access.redhat.com/errata/RHSA-2017:3194
Third Party Advisory vendor-advisory
x_refsource_redhat
https://access.redhat.com/errata/RHSA-2017:3193
Third Party Advisory, VDB Entry vdb-entry
x_refsource_sectrack
http://www.securitytracker.com/id/1038711
Third Party Advisory vendor-advisory
x_refsource_gentoo
https://security.gentoo.org/glsa/201710-32
Mailing List mailing-list
x_refsource_mlist
https://lists.apache.org/thread.html/56c2e7cc9deb1c12a843d0dc251ea7fd3e7e80293cde02fcd65286ba%40%3Ccvs.httpd.apache.org%3E
Mailing List mailing-list
x_refsource_mlist
https://lists.apache.org/thread.html/84a3714f0878781f6ed84473d1a503d2cc382277e100450209231830%40%3Ccvs.httpd.apache.org%3E
Mailing List mailing-list
x_refsource_mlist
https://lists.apache.org/thread.html/8d63cb8e9100f28a99429b4328e4e7cebce861d5772ac9863ba2ae6f%40%3Ccvs.httpd.apache.org%3E
Mailing List mailing-list
x_refsource_mlist
https://lists.apache.org/thread.html/f7f95ac1cd9895db2714fa3ebaa0b94d0c6df360f742a40951384a53%40%3Ccvs.httpd.apache.org%3E
Third Party Advisory x_refsource_confirm
https://www.tenable.com/security/tns-2019-09
Mailing List mailing-list
x_refsource_mlist
https://lists.apache.org/thread.html/r57608dc51b79102f3952ae06f54d5277b649c86d6533dcd6a7d201f7%40%3Ccvs.httpd.apache.org%3E
Mailing List mailing-list
x_refsource_mlist
https://lists.apache.org/thread.html/rd18c3c43602e66f9cdcf09f1de233804975b9572b0456cc582390b6f%40%3Ccvs.httpd.apache.org%3E
Mailing List mailing-list
x_refsource_mlist
https://lists.apache.org/thread.html/re3d27b6250aa8548b8845d314bb8a350b3df326cacbbfdfe4d455234%40%3Ccvs.httpd.apache.org%3E
Mailing List mailing-list
x_refsource_mlist
https://lists.apache.org/thread.html/rfbaf647d52c1cb843e726a0933f156366a806cead84fbd430951591b%40%3Ccvs.httpd.apache.org%3E
Mailing List mailing-list
x_refsource_mlist
https://lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9%40%3Ccvs.httpd.apache.org%3E
Mailing List mailing-list
x_refsource_mlist
https://lists.apache.org/thread.html/r9ea3538f229874c80a10af473856a81fbf5f694cd7f471cc679ba70b%40%3Ccvs.httpd.apache.org%3E
Mailing List mailing-list
x_refsource_mlist
https://lists.apache.org/thread.html/rc998b18880df98bafaade071346690c2bc1444adaa1a1ea464b93f0a%40%3Ccvs.httpd.apache.org%3E
Mailing List mailing-list
x_refsource_mlist
https://lists.apache.org/thread.html/r15f9aa4427581a1aecb4063f1b4b983511ae1c9935e2a0a6876dad3c%40%3Ccvs.httpd.apache.org%3E
Mailing List mailing-list
x_refsource_mlist
https://lists.apache.org/thread.html/rfcf929bd33a6833e3f0c35eebdad70d5060665f9c4e17ea467c66770%40%3Ccvs.httpd.apache.org%3E
Mailing List mailing-list
x_refsource_mlist
https://lists.apache.org/thread.html/rdca61ae990660bacb682295f2a09d34612b7bb5f457577fe17f4d064%40%3Ccvs.httpd.apache.org%3E
Mailing List mailing-list
x_refsource_mlist
https://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920%40%3Ccvs.httpd.apache.org%3E
Mailing List mailing-list
x_refsource_mlist
https://lists.apache.org/thread.html/r6521a7f62276340eabdb3339b2aa9a38c5f59d978497a1f794af53be%40%3Ccvs.httpd.apache.org%3E
Mailing List mailing-list
x_refsource_mlist
https://lists.apache.org/thread.html/rcc44594d4d6579b90deccd4536b5d31f099ef563df39b094be286b9e%40%3Ccvs.httpd.apache.org%3E
Mailing List mailing-list
x_refsource_mlist
https://lists.apache.org/thread.html/rad01d817195e6cc871cb1d73b207ca326379a20a6e7f30febaf56d24%40%3Ccvs.httpd.apache.org%3E
Mailing List mailing-list
x_refsource_mlist
https://lists.apache.org/thread.html/r476d175be0aaf4a17680ef98c5153b4d336eaef76fb2224cc94c463a%40%3Ccvs.httpd.apache.org%3E
Mailing List mailing-list
x_refsource_mlist
https://lists.apache.org/thread.html/r75cbe9ea3e2114e4271bbeca7aff96117b50c1b6eb7c4772b0337c1f%40%3Ccvs.httpd.apache.org%3E
Scores
CVSS v3
7.5
EPSS
0.6278
EPSS Percentile
98.4%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Details
VulnCheck KEV
2022-02-22
CWE
CWE-125
CWE-126
Status
published
Products (33)
apache/http_server
2.2.32
apache/http_server
2.4.24
apache/http_server
2.4.25
Apache Software Foundation/Apache HTTP Server
2.2.32
Apache Software Foundation/Apache HTTP Server
2.4.24, 2.4.25
apple/mac_os_x
10.11.6 (7 CPE variants)
apple/mac_os_x
10.12.6
apple/mac_os_x
< 10.13.1
debian/debian_linux
8.0
debian/debian_linux
9.0
... and 23 more
Published
Jun 20, 2017
Tracked Since
Feb 18, 2026