USN-4602-2: Perl vulnerabilities
27 October 2020
Several security issues were fixed in Perl.
Releases
Packages
- perl - Practical Extraction and Report Language
Details
USN-4602-1 fixed several vulnerabilities in Perl. This update provides
the corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM.
Original advisory details:
ManhND discovered that Perl incorrectly handled certain regular
expressions. In environments where untrusted regular expressions are
evaluated, a remote attacker could possibly use this issue to cause Perl to
crash, resulting in a denial of service, or possibly execute arbitrary
code. (CVE-2020-10543)
Hugo van der Sanden and Slaven Rezic discovered that Perl incorrectly
handled certain regular expressions. In environments where untrusted
regular expressions are evaluated, a remote attacker could possibly use
this issue to cause Perl to crash, resulting in a denial of service, or
possibly execute arbitrary code. (CVE-2020-10878)
Sergey Aleynikov discovered that Perl incorrectly handled certain regular
expressions. In environments where untrusted regular expressions are
evaluated, a remote attacker could possibly use this issue to cause Perl to
crash, resulting in a denial of service, or possibly execute arbitrary
code. (CVE-2020-12723)
Update instructions
The problem can be corrected by updating your system to the following package versions:
Ubuntu 14.04
Ubuntu 12.04
In general, a standard system update will make all the necessary changes.
References
Related notices
- USN-4602-1: libperl-dev, libperl5.26, libperl5.22, libperl5.30, perl-base, perl-modules-5.22, perl-debug, perl-doc, perl-modules-5.26, perl-modules-5.30, perl