CVE-2012-2386

Severity: high (CVSS 7.5 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 42.5% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2012-07-07 · updated 2026-06-16
Weakness: CWE-189

Description

Integer overflow in the phar_parse_tarfile function in tar.c in the phar extension in PHP before 5.3.14 and 5.4.x before 5.4.4 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted tar file that triggers a heap-based buffer overflow.

Affected products

PHP: through 5.3.13; from 5.4.0 before 5.4.4 — fixed in 5.4.4

How to fix

Upgrade to a fixed version: PHP 5.4.4. Check the vendor advisory for mitigations.

References

http://0x1byte.blogspot.com/2011/04/php-phar-extension-heap-overflow.html
http://git.php.net/?p=php-src.git%3Ba=commit%3Bh=158d8a6b088662ce9d31e0c777c6ebe90efdc854
http://lists.apple.com/archives/security-announce/2012/Sep/msg00004.html
http://lists.opensuse.org/opensuse-security-announce/2012-07/msg00003.html
http://openwall.com/lists/oss-security/2012/05/22/10
http://support.apple.com/kb/HT5501
http://www.php.net/ChangeLog-5.php
https://bugs.php.net/bug.php?id=61065
https://bugzilla.redhat.com/show_bug.cgi?id=823594
http://0x1byte.blogspot.com/2011/04/php-phar-extension-heap-overflow.html
http://git.php.net/?p=php-src.git%3Ba=commit%3Bh=158d8a6b088662ce9d31e0c777c6ebe90efdc854
http://lists.apple.com/archives/security-announce/2012/Sep/msg00004.html

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