Test ID:	1.3.6.1.4.1.25623.1.0.892600
Category:	Debian Local Security Checks
Title:	Debian: Security Advisory (DLA-2600-1)
Summary:	The remote host is missing an update for the Debian 'pygments' package(s) announced via the DLA-2600-1 advisory.
Description:	Summary: The remote host is missing an update for the Debian 'pygments' package(s) announced via the DLA-2600-1 advisory. Vulnerability Insight: It was discovered that there was a series of denial of service vulnerabilities in Pygments, a popular syntax highlighting library for Python. A number of regular expressions had exponential or cubic worst-case complexity which could cause a remote denial of service (DoS) when provided with malicious input. CVE-2021-27291 In pygments 1.1+, fixed in 2.7.4, the lexers used to parse programming languages rely heavily on regular expressions. Some of the regular expressions have exponential or cubic worst-case complexity and are vulnerable to ReDoS. By crafting malicious input, an attacker can cause a denial of service. For Debian 9 Stretch, these problems have been fixed in version 2.2.0+dfsg-1+deb9u2. We recommend that you upgrade your pygments packages. Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: [link moved to references] Affected Software/OS: 'pygments' package(s) on Debian 9. Solution: Please install the updated package(s). CVSS Score: 5.0 CVSS Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P
Cross-Ref:	Common Vulnerability Exposure (CVE) ID: CVE-2021-27291 Debian Security Information: DSA-4878 (Google Search) https://www.debian.org/security/2021/dsa-4878 Debian Security Information: DSA-4889 (Google Search) https://www.debian.org/security/2021/dsa-4889 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GSJRFHALQ7E3UV4FFMFU2YQ6LUDHAI55/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WSLD67LFGXOX2K5YNESSWAS4AGZIJTUQ/ https://gist.github.com/b-c-ds/b1a2cc0c68a35c57188575eb496de5ce https://github.com/pygments/pygments/commit/2e7e8c4a7b318f4032493773732754e418279a14 https://lists.debian.org/debian-lts-announce/2021/03/msg00024.html https://lists.debian.org/debian-lts-announce/2021/05/msg00003.html https://lists.debian.org/debian-lts-announce/2021/05/msg00006.html
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