Debian Security Advisory
DSA-4347-1 perl -- security update
- Date Reported:
- 29 Nov 2018
- Affected Packages:
- 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:
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.
Eiichi Tsukata discovered that a crafted regular expression could cause a heap-based buffer overflow write during compilation, potentially allowing arbitrary code execution.
Eiichi Tsukata discovered that a crafted regular expression could cause a heap-based buffer overflow read during compilation which leads to information leak.
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