CVE-2011-1398: Input Validation
First published: Thu Aug 30 2012(Updated: )
The sapi_header_op function in main/SAPI.c in PHP before 5.3.11 and 5.4.x before 5.4.0RC2 does not check for %0D sequences (aka carriage return characters), which allows remote attackers to bypass an HTTP response-splitting protection mechanism via a crafted URL, related to improper interaction between the PHP header function and certain browsers, as demonstrated by Internet Explorer and Google Chrome.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| PHP | <=5.3.10 | |
| PHP | =5.3.0 | |
| PHP | =5.3.1 | |
| PHP | =5.3.2 | |
| PHP | =5.3.3 | |
| PHP | =5.3.4 | |
| PHP | =5.3.5 | |
| PHP | =5.3.6 | |
| PHP | =5.3.7 | |
| PHP | =5.3.8 | |
| PHP | =5.3.9 |
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Reference Links
- http://article.gmane.org/gmane.comp.php.devel/70584
- http://lists.opensuse.org/opensuse-security-announce/2013-08/msg00006.html
- http://openwall.com/lists/oss-security/2012/08/29/5
- http://openwall.com/lists/oss-security/2012/09/05/15
- http://rhn.redhat.com/errata/RHSA-2013-1307.html
- http://secunia.com/advisories/55078
- http://security-tracker.debian.org/tracker/CVE-2011-1398
- http://www.securitytracker.com/id?1027463
- http://www.ubuntu.com/usn/USN-1569-1
- https://bugs.php.net/bug.php?id=60227
Frequently Asked Questions
What is the severity of CVE-2011-1398?
CVE-2011-1398 has a medium severity level due to its potential to enable HTTP response-splitting attacks.
How do I fix CVE-2011-1398?
To fix CVE-2011-1398, upgrade PHP to version 5.3.11 or higher, or 5.4.0RC2 or higher.
Which versions of PHP are affected by CVE-2011-1398?
CVE-2011-1398 affects PHP versions prior to 5.3.11 and all versions of the 5.4.x branch before 5.4.0RC2.
What are the implications of CVE-2011-1398?
The implications of CVE-2011-1398 include the risk of remote attackers exploiting the vulnerability to manipulate HTTP headers.
Is there a workaround for CVE-2011-1398 if I cannot upgrade PHP?
There are no effective workarounds for CVE-2011-1398; upgrading PHP is the recommended solution.
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- agent/software-canonical-lookup-request
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- vendor/php
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- version/php/5.3.10
- version/php/5.3.0
- version/php/5.3.1
- version/php/5.3.2
- version/php/5.3.3
- version/php/5.3.4
- version/php/5.3.5
- version/php/5.3.6
- version/php/5.3.7
- version/php/5.3.8
- version/php/5.3.9