Numeric Errors Affecting php5 package, versions <5.6.9+dfsg-0+deb8u1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
49.16% (98th percentile)

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  • Snyk IDSNYK-DEBIAN8-PHP5-394483
  • published9 Jun 2015
  • disclosed9 Jun 2015

Introduced: 9 Jun 2015

CVE-2015-4021  (opens in a new tab)
CWE-189  (opens in a new tab)

How to fix?

Upgrade Debian:8 php5 to version 5.6.9+dfsg-0+deb8u1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream php5 package and not the php5 package as distributed by Debian. See How to fix? for Debian:8 relevant fixed versions and status.

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 Scores

version 3.1