Access Restriction Bypass Affecting php5 package, versions <5.2.11.dfsg.1-1


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

Exploit Maturity
Mature
EPSS
2.18% (90th percentile)

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  • Snyk IDSNYK-DEBIAN8-PHP5-395089
  • published29 Nov 2009
  • disclosed29 Nov 2009

Introduced: 29 Nov 2009

CVE-2009-4018  (opens in a new tab)
CWE-264  (opens in a new tab)

How to fix?

Upgrade Debian:8 php5 to version 5.2.11.dfsg.1-1 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 proc_open function in ext/standard/proc_open.c in PHP before 5.2.11 and 5.3.x before 5.3.1 does not enforce the (1) safe_mode_allowed_env_vars and (2) safe_mode_protected_env_vars directives, which allows context-dependent attackers to execute programs with an arbitrary environment via the env parameter, as demonstrated by a crafted value of the LD_LIBRARY_PATH environment variable.

CVSS Scores

version 3.1