Debian — Security Information — DSA-4347-1 perl
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