CVE-2015-4021
The phar_parse_tarfile function in ext/phar/tar.c in PHP before 5.4.41, 5.5.x before 5.5.25, and 5.6.x before 5.6.9 does not verify that the first character of a filename is different from the \0 character, which allows remote attackers to cause a…
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 21.4%, higher than 97% of all known CVEs. Patch or mitigate before the next change window.
Description
The phar_parse_tarfile function in ext/phar/tar.c in PHP before 5.4.41, 5.5.x before 5.5.25, and 5.6.x before 5.6.9 does not verify that the first character of a filename is different from the \0 character, which allows remote attackers to cause a denial of service (integer underflow and memory corruption) via a crafted entry in a tar archive.
- CVSS 2.0
- 5.0 MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P
- EPSS
- 21.40% probability · 97th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-189
- Affected
- redhat/enterprise linux desktop · redhat/enterprise linux hpc node · redhat/enterprise linux hpc node eus · redhat/enterprise linux server · redhat/enterprise linux server eus · redhat/enterprise linux workstation · apple/mac os x · redhat/enterprise linux · php/php
- Source
- cve@mitre.org
References
- http://lists.apple.com/archives/security-announce/2015/Aug/msg00001.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-May/158616.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-May/158915.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-May/159031.html
- http://lists.opensuse.org/opensuse-updates/2015-06/msg00002.html
- http://php.net/ChangeLog-5.phpPatch
- http://rhn.redhat.com/errata/RHSA-2015-1135.html
- http://rhn.redhat.com/errata/RHSA-2015-1186.html
- http://rhn.redhat.com/errata/RHSA-2015-1187.html
- http://rhn.redhat.com/errata/RHSA-2015-1218.html
- http://rhn.redhat.com/errata/RHSA-2015-1219.html
- http://www.debian.org/security/2015/dsa-3280
- http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
- http://www.securityfocus.com/bid/74700
- http://www.securitytracker.com/id/1032433
- https://bugs.php.net/bug.php?id=69453Exploit
- https://security.gentoo.org/glsa/201606-10
- https://support.apple.com/kb/HT205031
- http://lists.apple.com/archives/security-announce/2015/Aug/msg00001.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-May/158616.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-May/158915.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-May/159031.html
- http://lists.opensuse.org/opensuse-updates/2015-06/msg00002.html
- http://php.net/ChangeLog-5.phpPatch
- http://rhn.redhat.com/errata/RHSA-2015-1135.html
- http://rhn.redhat.com/errata/RHSA-2015-1186.html
- http://rhn.redhat.com/errata/RHSA-2015-1187.html
- http://rhn.redhat.com/errata/RHSA-2015-1218.html
- http://rhn.redhat.com/errata/RHSA-2015-1219.html
- http://www.debian.org/security/2015/dsa-3280
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.