Security Information / 2018 / Security Information -- DSA-4347-1 perl

Debian Security Advisory

DSA-4347-1 perl -- security update

Date Reported:

29 Nov 2018

Affected Packages:

perl

Vulnerable:

Yes

Security database references:

In Mitre's CVE dictionary: CVE-2018-18311, CVE-2018-18312, CVE-2018-18313, CVE-2018-18314.

More information:

Multiple vulnerabilities were discovered in the implementation of the Perl programming language. The Common Vulnerabilities and Exposures project identifies the following problems:

• CVE-2018-18311

  Jayakrishna Menon and Christophe Hauser discovered an integer overflow vulnerability in Perl_my_setenv leading to a heap-based buffer overflow with attacker-controlled input.

• CVE-2018-18312

  Eiichi Tsukata discovered that a crafted regular expression could cause a heap-based buffer overflow write during compilation, potentially allowing arbitrary code execution.

• CVE-2018-18313

  Eiichi Tsukata discovered that a crafted regular expression could cause a heap-based buffer overflow read during compilation which leads to information leak.

• CVE-2018-18314

  Jakub Wilk discovered that a specially crafted regular expression could lead to a heap-based buffer overflow.

For the stable distribution (stretch), these problems have been fixed in version 5.24.1-3+deb9u5.

We recommend that you upgrade your perl packages.

For the detailed security status of perl please refer to its security tracker page at: https://security-tracker.debian.org/tracker/perl