CVE-2012-0021

The log_cookie function in mod_log_config.c in the mod_log_config module in the Apache HTTP Server 2.2.17 through 2.2.21, when a threaded MPM is used, does not properly handle a %{}C format string, which allows remote attackers to cause a denial of service (daemon crash) via a cookie that lacks both a name and a value.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
2.6 UNKNOWN
NETWORK
HIGH
AV:N/AC:H/Au:N/C:N/I:N/A:P
Base Score
CVSS 3.x
EPSS Score
Percentile: 96%
Affected Products (NVD)
VendorProductVersion
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
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
lenny
not-affected
sid
2.4.62-3
fixed
squeeze
not-affected
trixie
2.4.62-3
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
apache2
hardy
not-affected
lucid
not-affected
maverick
not-affected
natty
Fixed 2.2.17-1ubuntu1.5
released
oneiric
Fixed 2.2.20-1ubuntu1.2
released
openSUSE logo
openSUSE / SLES Releases
openSUSE Product
Release
apache2
suse enterprise sap 12 SP5
2.4.23-29.43.1
fixed
suse enterprise sap 15
2.4.33-1.28
fixed
suse enterprise sap 15 SP1
2.4.33-3.15.1
fixed
suse enterprise server 12 SP2
2.4.23-14.7
fixed
suse enterprise server 12 SP5
2.4.23-29.43.1
fixed
suse enterprise server 15
2.4.33-1.28
fixed
suse enterprise server 15 SP1
2.4.33-3.15.1
fixed
apache2-devel
suse enterprise sap 15
2.4.33-1.28
fixed
suse enterprise sap 15 SP1
2.4.33-3.15.1
fixed
suse enterprise server 15
2.4.33-1.28
fixed
suse enterprise server 15 SP1
2.4.33-3.15.1
fixed
apache2-doc
suse enterprise sap 12 SP5
2.4.23-29.43.1
fixed
suse enterprise sap 15
2.4.33-1.28
fixed
suse enterprise sap 15 SP1
2.4.33-3.15.1
fixed
suse enterprise server 12 SP2
2.4.23-14.7
fixed
suse enterprise server 12 SP5
2.4.23-29.43.1
fixed
suse enterprise server 15
2.4.33-1.28
fixed
suse enterprise server 15 SP1
2.4.33-3.15.1
fixed
apache2-example-pages
suse enterprise sap 12 SP5
2.4.23-29.43.1
fixed
suse enterprise server 12 SP2
2.4.23-14.7
fixed
suse enterprise server 12 SP5
2.4.23-29.43.1
fixed
apache2-prefork
suse enterprise sap 12 SP5
2.4.23-29.43.1
fixed
suse enterprise sap 15
2.4.33-1.28
fixed
suse enterprise sap 15 SP1
2.4.33-3.15.1
fixed
suse enterprise server 12 SP2
2.4.23-14.7
fixed
suse enterprise server 12 SP5
2.4.23-29.43.1
fixed
suse enterprise server 15
2.4.33-1.28
fixed
suse enterprise server 15 SP1
2.4.33-3.15.1
fixed
apache2-utils
suse enterprise sap 12 SP5
2.4.23-29.43.1
fixed
suse enterprise sap 15
2.4.33-1.28
fixed
suse enterprise sap 15 SP1
2.4.33-3.15.1
fixed
suse enterprise server 12 SP2
2.4.23-14.7
fixed
suse enterprise server 12 SP5
2.4.23-29.43.1
fixed
suse enterprise server 15
2.4.33-1.28
fixed
suse enterprise server 15 SP1
2.4.33-3.15.1
fixed
apache2-worker
suse enterprise sap 12 SP5
2.4.23-29.43.1
fixed
suse enterprise sap 15
2.4.33-1.28
fixed
suse enterprise sap 15 SP1
2.4.33-3.15.1
fixed
suse enterprise server 12 SP2
2.4.23-14.7
fixed
suse enterprise server 12 SP5
2.4.23-29.43.1
fixed
suse enterprise server 15
2.4.33-1.28
fixed
suse enterprise server 15 SP1
2.4.33-3.15.1
fixed
Common Weakness Enumeration
References
http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c03360041
http://httpd.apache.org/security/vulnerabilities_22.html
http://lists.apple.com/archives/security-announce/2012/Sep/msg00004.html
http://marc.info/?l=bugtraq&m=133294460209056&w=2
http://marc.info/?l=bugtraq&m=133494237717847&w=2
http://rhn.redhat.com/errata/RHSA-2012-0542.html
http://rhn.redhat.com/errata/RHSA-2012-0543.html
http://secunia.com/advisories/48551
http://support.apple.com/kb/HT5501
http://svn.apache.org/viewvc?view=revision&revision=1227292
http://www.mandriva.com/security/advisories?name=MDVSA-2012:012
http://www.mandriva.com/security/advisories?name=MDVSA-2013:150
http://www.oracle.com/technetwork/topics/security/cpujul2012-392727.html
https://bugzilla.redhat.com/show_bug.cgi?id=785065
https://issues.apache.org/bugzilla/show_bug.cgi?id=52256
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/r05b5357d1f6bd106f41541ee7d87aafe3f5ea4dc3e9bde5ce09baff8%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/r1d201e3da31a2c8aa870c8314623caef7debd74a13d0f25205e26f15%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/r9b4b963760a3cb5a4a70c902f325c6c0337fe51d5b8570416f8f8729%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/rad01d817195e6cc871cb1d73b207ca326379a20a6e7f30febaf56d24%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/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/rfbaf647d52c1cb843e726a0933f156366a806cead84fbd430951591b%40%3Ccvs.httpd.apache.org%3E
http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c03360041
http://httpd.apache.org/security/vulnerabilities_22.html
http://lists.apple.com/archives/security-announce/2012/Sep/msg00004.html
http://marc.info/?l=bugtraq&m=133294460209056&w=2
http://marc.info/?l=bugtraq&m=133494237717847&w=2
http://rhn.redhat.com/errata/RHSA-2012-0542.html
http://rhn.redhat.com/errata/RHSA-2012-0543.html
http://secunia.com/advisories/48551
http://support.apple.com/kb/HT5501
http://svn.apache.org/viewvc?view=revision&revision=1227292
http://www.mandriva.com/security/advisories?name=MDVSA-2012:012
http://www.mandriva.com/security/advisories?name=MDVSA-2013:150
http://www.oracle.com/technetwork/topics/security/cpujul2012-392727.html
https://bugzilla.redhat.com/show_bug.cgi?id=785065
https://issues.apache.org/bugzilla/show_bug.cgi?id=52256
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/r05b5357d1f6bd106f41541ee7d87aafe3f5ea4dc3e9bde5ce09baff8%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/r1d201e3da31a2c8aa870c8314623caef7debd74a13d0f25205e26f15%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/r9b4b963760a3cb5a4a70c902f325c6c0337fe51d5b8570416f8f8729%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/rad01d817195e6cc871cb1d73b207ca326379a20a6e7f30febaf56d24%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/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/rfbaf647d52c1cb843e726a0933f156366a806cead84fbd430951591b%40%3Ccvs.httpd.apache.org%3E