CVE-2011-3379
high
CVSS v3
—
CVSS v4 NEW
—
VIR risk
7.5
Description
The is_a function in PHP 5.3.7 and 5.3.8 triggers a call to the __autoload function, which makes it easier for remote attackers to execute arbitrary code by providing a crafted URL and leveraging potentially unsafe behavior in certain PEAR packages and custom autoloaders.
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
References
- http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c03360041
- http://securityreason.com/securityalert/8525
- http://svn.php.net/viewvc/?view=revision&revision=317183
- http://www.byte.nl/blog/2011/09/23/security-bug-in-is_a-function-in-php-5-3-7-5-3-8/
- http://www.securityfocus.com/archive/1/519770/30/0/threaded
- https://bugs.php.net/bug.php?id=55475
- https://bugzilla.redhat.com/show_bug.cgi?id=741020
- http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c03360041
- http://securityreason.com/securityalert/8525
- http://svn.php.net/viewvc/?view=revision&revision=317183
- http://www.byte.nl/blog/2011/09/23/security-bug-in-is_a-function-in-php-5-3-7-5-3-8/
- http://www.securityfocus.com/archive/1/519770/30/0/threaded
- https://bugs.php.net/bug.php?id=55475
- https://bugzilla.redhat.com/show_bug.cgi?id=741020
CWEs
CWE-94
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.