CVE-2015-5590

Severity: high (CVSS 7.3 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 4.6% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2016-01-19 · updated 2026-06-17
Weakness: CWE-119

Description

Stack-based buffer overflow in the phar_fix_filepath function in ext/phar/phar.c in PHP before 5.4.43, 5.5.x before 5.5.27, and 5.6.x before 5.6.11 allows remote attackers to cause a denial of service or possibly have unspecified other impact via a large length value, as demonstrated by mishandling of an e-mail attachment by the imap PHP extension.

Affected products

PHP: through 5.4.42; 5.5.0, 5.5.0-alpha1, 5.5.0-alpha2, 5.5.0-alpha3, 5.5.0-alpha4, 5.5.0-alpha5 (+49)

References

http://git.php.net/?p=php-src.git%3Ba=commit%3Bh=6dedeb40db13971af45276f80b5375030aa7e76f
http://openwall.com/lists/oss-security/2015/07/18/1
http://www.debian.org/security/2015/dsa-3344
http://www.php.net/ChangeLog-5.php
http://www.securityfocus.com/bid/75970
https://bugs.php.net/bug.php?id=69923
http://git.php.net/?p=php-src.git%3Ba=commit%3Bh=6dedeb40db13971af45276f80b5375030aa7e76f
http://openwall.com/lists/oss-security/2015/07/18/1
http://www.debian.org/security/2015/dsa-3344
http://www.php.net/ChangeLog-5.php
http://www.securityfocus.com/bid/75970
https://bugs.php.net/bug.php?id=69923

Get alerted when CVE-2015-5590 or the next vulnerability affects your stack