critical
10
CWE
119
Advisory Published
CVE Published
CVE Published
Updated

CVE-2016-2554: Buffer Overflow

First published: Mon Feb 08 2016(Updated: )

A stack overflow vulnerability was reported that may occur when decompressing tar archives due to phar_tar_writeheaders() potentially copying non-terminated linknames from entries parsed by phar_parse_tarfile(). Upstream bug: <a href="https://bugs.php.net/bug.php?id=71488">https://bugs.php.net/bug.php?id=71488</a> Upstream patch: <a href="https://git.php.net/?p=php-src.git;a=commit;h=07c7df68bd68bbe706371fccc77c814ebb335d9e">https://git.php.net/?p=php-src.git;a=commit;h=07c7df68bd68bbe706371fccc77c814ebb335d9e</a>

Credit: cve@mitre.org cve@mitre.org

Affected SoftwareAffected VersionHow to fix
=7.0.0
=7.0.1
=7.0.2
<=5.5.31
=5.6.0-alpha1
=5.6.0-alpha2
=5.6.0-alpha3
=5.6.0-alpha4
=5.6.0-alpha5
=5.6.0-beta1
=5.6.0-beta2
=5.6.0-beta3
=5.6.0-beta4
=5.6.1
=5.6.2
=5.6.3
=5.6.4
=5.6.5
=5.6.6
=5.6.7
=5.6.8
=5.6.9
=5.6.10
=5.6.11
=5.6.12
=5.6.13
=5.6.14
=5.6.15
=5.6.16
=5.6.17
PHP PHP=7.0.0
PHP PHP=7.0.1
PHP PHP=7.0.2
PHP PHP<=5.5.31
PHP PHP=5.6.0-alpha1
PHP PHP=5.6.0-alpha2
PHP PHP=5.6.0-alpha3
PHP PHP=5.6.0-alpha4
PHP PHP=5.6.0-alpha5
PHP PHP=5.6.0-beta1
PHP PHP=5.6.0-beta2
PHP PHP=5.6.0-beta3
PHP PHP=5.6.0-beta4
PHP PHP=5.6.1
PHP PHP=5.6.2
PHP PHP=5.6.3
PHP PHP=5.6.4
PHP PHP=5.6.5
PHP PHP=5.6.6
PHP PHP=5.6.7
PHP PHP=5.6.8
PHP PHP=5.6.9
PHP PHP=5.6.10
PHP PHP=5.6.11
PHP PHP=5.6.12
PHP PHP=5.6.13
PHP PHP=5.6.14
PHP PHP=5.6.15
PHP PHP=5.6.16
PHP PHP=5.6.17
PHP PHP<7.0.3
7.0.3
redhat/php<5.6.18
5.6.18
redhat/php<5.5.32
5.5.32
debian/php5
debian/php5.6
debian/php7.0
ubuntu/php5<5.6.18+dfsg-1
5.6.18+dfsg-1
ubuntu/php5<5.3.10-1ubuntu3.22
5.3.10-1ubuntu3.22
ubuntu/php5<5.5.9+dfsg-1ubuntu4.16
5.5.9+dfsg-1ubuntu4.16
ubuntu/php5<5.6.11+dfsg-1ubuntu3.2
5.6.11+dfsg-1ubuntu3.2
ubuntu/php7.0<7.0.3-1
7.0.3-1

Remedy

https://git.php.net/?p=php-src.git;a=commit;h=07c7df68bd68bbe706371fccc77c814ebb335d9e

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is CVE-2016-2554?

    CVE-2016-2554 refers to a stack-based buffer overflow vulnerability in PHP before 5.5.32, 5.6.x before 5.6.18, and 7.x before 7.0.3.

  • How severe is CVE-2016-2554?

    CVE-2016-2554 has a severity rating of 9.8 (critical).

  • How does CVE-2016-2554 impact PHP?

    CVE-2016-2554 can allow remote attackers to cause a denial of service (application crash) or potentially have other unspecified impacts via a crafted TAR archive.

  • Which versions of PHP are affected by CVE-2016-2554?

    The vulnerability affects PHP versions before 5.5.32, 5.6.x before 5.6.18, and 7.x before 7.0.3.

  • How can I fix CVE-2016-2554?

    To fix CVE-2016-2554, it is recommended to update PHP to version 5.5.32, 5.6.18, or 7.0.3 or later.

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