Heap-based buffer overflow in PHP - CVE-2012-2386

Vulnerability details

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in 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. A remote attacker can use a crafted tar file that triggers a heap-based buffer overflow. to trigger heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Affected software

How to mitigate CVE-2012-2386

Links to Public Exploits and PoC-codes

• Exploit #4479 - PHP phar extension 1.1.1 - Heap Overflow (August 11, 2020)

External References

• http://0x1byte.blogspot.com/2011/04/php-phar-extension-heap-overflow.html
• http://git.php.net/?p=php-src.git;a=commit;h=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

Related Security Bulletins

• Multiple vulnerabilities in PHP
• SUSE Linux update for PHP5
• Amazon Linux AMI update for php
• Gentoo update for PHP