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, wh...
LowCVSS 2.6
EPSS 30.3%
- Published
- Updated
- Exploit status
- No public exploit known
Description
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.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| debian/apache2(Debian:12) | < 2.2.22-1 | 2.2.22-1 |
| debian/apache2(Debian:13) | < 2.2.22-1 | 2.2.22-1 |
| debian/apache2(Debian:14) | < 2.2.22-1 | 2.2.22-1 |
| Apache HTTP Server | = 2.2.17 | No fix listed |
| Apache HTTP Server | = 2.2.18 | No fix listed |
| Apache HTTP Server | = 2.2.19 | No fix listed |
| Apache HTTP Server | = 2.2.20 | No fix listed |
| Apache HTTP Server | = 2.2.21 | No fix listed |
References
- Debian Security Tracker CVE-2012-0021 vendor-advisory
- HPSBMU02786 vendor-advisory
- httpd.apache.org vendor-advisory
- APPLE-SA-2012-09-19-2 vendor-advisory
- SSRT100772 vendor-advisory
- HPSBUX02761 vendor-advisory
- RHSA-2012:0542 vendor-advisory
- RHSA-2012:0543 vendor-advisory
- 48551 third-party-advisory
- support.apple.com
- svn.apache.org patch
- MDVSA-2012:012 vendor-advisory
- MDVSA-2013:150 vendor-advisory
- www.oracle.com
- bugzilla.redhat.com
- issues.apache.org patch
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- [httpd-cvs] 20200401 svn commit: r1058586 [3/4] - in /websites/staging/httpd/trunk/content: ./ security/vulnerabilities-httpd.xml security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilities_24.html mailing-list
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- [httpd-cvs] 20210330 svn commit: r1073139 [8/13] - in /websites/staging/httpd/trunk/content: ./ security/json/ mailing-list
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- [httpd-cvs] 20210330 svn commit: r1073149 [1/13] - in /websites/staging/httpd/trunk/content: ./ security/ security/json/ mailing-list
- [httpd-cvs] 20210603 svn commit: r1075360 [2/3] - in /websites/staging/httpd/trunk/content: ./ security/json/CVE-2021-31618.json security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilities_24.html mailing-list
- [httpd-cvs] 20210330 svn commit: r1073146 [2/3] - in /websites/staging/httpd/trunk/content: ./ security/cvejsontohtml.py security/vulnerabilities-httpd.xml security/vulnerabilities_22.html security/vulnerabilities_24.html mailing-list
- [httpd-cvs] 20210330 svn commit: r1073139 [1/13] - in /websites/staging/httpd/trunk/content: ./ security/json/ mailing-list
- [httpd-cvs] 20200401 svn commit: r1058587 [3/4] - in /websites/staging/httpd/trunk/content: ./ security/vulnerabilities-httpd.xml security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilities_24.html mailing-list