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CVE-2020-12723

Status Candidate

Overview

regcomp.c in Perl before 5.30.3 allows a buffer overflow via a crafted regular expression because of recursive S_study_chunk calls.

Related Files

Ubuntu Security Notice USN-4602-2
Posted Oct 27, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4602-2 - USN-4602-1 fixed several vulnerabilities in Perl. This update provides the corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM. 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. Various other issues were also addressed.

tags | advisory, remote, denial of service, arbitrary, perl, vulnerability
systems | linux, ubuntu
advisories | CVE-2020-10543, CVE-2020-10878, CVE-2020-12723
MD5 | 549f62bb06239388f75ae227d8f0e23c
Ubuntu Security Notice USN-4602-1
Posted Oct 26, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4602-1 - 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. 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. Various other issues were also addressed.

tags | advisory, remote, denial of service, arbitrary, perl
systems | linux, ubuntu
advisories | CVE-2020-10543, CVE-2020-10878, CVE-2020-12723
MD5 | 12de9bee88d387efd047ec5aa10983a5
Gentoo Linux Security Advisory 202006-03
Posted Jun 12, 2020
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 202006-3 - Multiple vulnerabilities have been found in Perl, the worst of which could result in a Denial of Service condition. Versions less than 5.30.3 are affected.

tags | advisory, denial of service, perl, vulnerability
systems | linux, gentoo
advisories | CVE-2020-10543, CVE-2020-10878, CVE-2020-12723
MD5 | d5ef6833669c64a8b1c75e1e39522b58
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