CVE-2015-1351

Severity: high (CVSS 7.5 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 8.3% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2015-03-30 · updated 2026-06-17
Weakness: CWE-416

Description

Use-after-free vulnerability in the _zend_shared_memdup function in zend_shared_alloc.c in the OPcache extension in PHP through 5.6.7 allows remote attackers to cause a denial of service or possibly have unspecified other impact via unknown vectors.

Affected products

macOS: through 10.6.8
Oracle Corporation Oracle Linux: 6, 7
Oracle Corporation Oracle Secure Backup: through 12.1.0.1.0
Oracle Corporation Solaris Operating System: 11.2
PHP: before 5.5.24; from 5.6.0 before 5.6.8 — fixed in 5.5.24, 5.6.8

How to fix

Upgrade to a fixed version: PHP 5.5.24, 5.6.8. Check the vendor advisory for mitigations.

References

http://git.php.net/?p=php-src.git%3Ba=commit%3Bh=777c39f4042327eac4b63c7ee87dc1c7a09a3115
http://lists.apple.com/archives/security-announce/2015/Sep/msg00008.html
http://openwall.com/lists/oss-security/2015/01/24/9
http://rhn.redhat.com/errata/RHSA-2015-1053.html
http://rhn.redhat.com/errata/RHSA-2015-1066.html
http://www.mandriva.com/security/advisories?name=MDVSA-2015:079
http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html
http://www.oracle.com/technetwork/topics/security/bulletinjul2015-2511963.html
http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
http://www.securityfocus.com/bid/71929
https://bugs.php.net/bug.php?id=68677
https://security.gentoo.org/glsa/201606-10

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