CVE-2012-0021

httpd: NULL pointer dereference crash in mod_log_config

Severity Score

2.6

*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

La función log_cookie en mod_log_config.c en el módulo de mod_log_config en Apache HTTP Server v2.2.17 a v2.2.21, cuando se usa MPM multihilo , no controla correctamente una cadena de formato %{}C , lo que permite a atacantes remotos provocar una denegación de servicio (caída del demonio) a través de una cookie que carece de un nombre y un valor.

*Credits: N/A

Attack Vector

Network

Attack Complexity

High

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2011-12-07 CVE Reserved
2012-01-28 CVE Published
2024-02-16 EPSS Updated
2024-08-06 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-20: Improper Input Validation
CWE-476: NULL Pointer Dereference

CAPEC

References (29)

URL	Tag	Source
http://secunia.com/advisories/48551	Third Party Advisory
http://support.apple.com/kb/HT5501	X_refsource_confirm
http://www.oracle.com/technetwork/topics/security/cpujul2012-392727.html	X_refsource_confirm
https://lists.apache.org/thread.html/8d63cb8e9100f28a99429b4328e4e7cebce861d5772ac9863ba2ae6f%40%3Ccvs.httpd.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/f7f95ac1cd9895db2714fa3ebaa0b94d0c6df360f742a40951384a53%40%3Ccvs.httpd.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/r05b5357d1f6bd106f41541ee7d87aafe3f5ea4dc3e9bde5ce09baff8%40%3Ccvs.httpd.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/r1d201e3da31a2c8aa870c8314623caef7debd74a13d0f25205e26f15%40%3Ccvs.httpd.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/r57608dc51b79102f3952ae06f54d5277b649c86d6533dcd6a7d201f7%40%3Ccvs.httpd.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/r75cbe9ea3e2114e4271bbeca7aff96117b50c1b6eb7c4772b0337c1f%40%3Ccvs.httpd.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/r9b4b963760a3cb5a4a70c902f325c6c0337fe51d5b8570416f8f8729%40%3Ccvs.httpd.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/r9ea3538f229874c80a10af473856a81fbf5f694cd7f471cc679ba70b%40%3Ccvs.httpd.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920%40%3Ccvs.httpd.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/rad01d817195e6cc871cb1d73b207ca326379a20a6e7f30febaf56d24%40%3Ccvs.httpd.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/rdca61ae990660bacb682295f2a09d34612b7bb5f457577fe17f4d064%40%3Ccvs.httpd.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9%40%3Ccvs.httpd.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/rfbaf647d52c1cb843e726a0933f156366a806cead84fbd430951591b%40%3Ccvs.httpd.apache.org%3E	Mailing List

URL	Date	SRC

URL	Date	SRC
http://svn.apache.org/viewvc?view=revision&revision=1227292	2023-11-07
https://issues.apache.org/bugzilla/show_bug.cgi?id=52256	2023-11-07

URL	Date	SRC
http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c03360041	2023-11-07
http://httpd.apache.org/security/vulnerabilities_22.html	2023-11-07
http://lists.apple.com/archives/security-announce/2012/Sep/msg00004.html	2023-11-07
http://marc.info/?l=bugtraq&m=133294460209056&w=2	2023-11-07
http://marc.info/?l=bugtraq&m=133494237717847&w=2	2023-11-07
http://rhn.redhat.com/errata/RHSA-2012-0542.html	2023-11-07
http://rhn.redhat.com/errata/RHSA-2012-0543.html	2023-11-07
http://www.mandriva.com/security/advisories?name=MDVSA-2012:012	2023-11-07
http://www.mandriva.com/security/advisories?name=MDVSA-2013:150	2023-11-07
https://bugzilla.redhat.com/show_bug.cgi?id=785065	2012-05-07
https://access.redhat.com/security/cve/CVE-2012-0021	2012-05-07

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Apache Search vendor "Apache"		Http Server Search vendor "Apache" for product "Http Server"				2.2.17 Search vendor "Apache" for product "Http Server" and version "2.2.17"		-		Affected
Apache Search vendor "Apache"		Http Server Search vendor "Apache" for product "Http Server"				2.2.18 Search vendor "Apache" for product "Http Server" and version "2.2.18"		-		Affected
Apache Search vendor "Apache"		Http Server Search vendor "Apache" for product "Http Server"				2.2.19 Search vendor "Apache" for product "Http Server" and version "2.2.19"		-		Affected
Apache Search vendor "Apache"		Http Server Search vendor "Apache" for product "Http Server"				2.2.20 Search vendor "Apache" for product "Http Server" and version "2.2.20"		-		Affected
Apache Search vendor "Apache"		Http Server Search vendor "Apache" for product "Http Server"				2.2.21 Search vendor "Apache" for product "Http Server" and version "2.2.21"		-		Affected