Out-of-Bounds Affecting php55-fpm package, versions <0:5.5.7-1.61.amzn1


Severity

Recommended
critical

Based on Amazon Linux security rating.

Threat Intelligence

Exploit Maturity
Mature
EPSS
95.28% (100th percentile)

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  • Snyk IDSNYK-AMZN201803-PHP55FPM-1671419
  • published27 Sept 2021
  • disclosed17 Dec 2013

Introduced: 17 Dec 2013

CVE-2013-6420  (opens in a new tab)
CWE-119  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2018.03 php55-fpm to version 0:5.5.7-1.61.amzn1 or higher.
This issue was patched in ALAS-2013-264.

NVD Description

Note: Versions mentioned in the description apply only to the upstream php55-fpm package and not the php55-fpm package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2018.03 relevant fixed versions and status.

The asn1_time_to_time_t function in ext/openssl/openssl.c in PHP before 5.3.28, 5.4.x before 5.4.23, and 5.5.x before 5.5.7 does not properly parse (1) notBefore and (2) notAfter timestamps in X.509 certificates, which allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted certificate that is not properly handled by the openssl_x509_parse function.

CVSS Scores

version 3.1