CVE-2023-35936

Pandoc is a Haskell library for converting from one markup format to another, and a command-line tool that uses this library. Starting in version 1.13 and prior to version 3.1.4, Pandoc is susceptible to an arbitrary file write vulnerability, which can be triggered by providing a specially crafted image element in the input when generating files using the `--extract-media` option or outputting to PDF format. This vulnerability allows an attacker to create or overwrite arbitrary files on the system ,depending on the privileges of the process running pandoc. It only affects systems that pass untrusted user input to pandoc and allow pandoc to be used to produce a PDF or with the `--extract-media` option. The fix is to unescape the percent-encoding prior to checking that the resource is not above the working directory, and prior to extracting the extension. Some code for checking that the path is below the working directory was flawed in a similar way and has also been fixed. Note that the `--sandbox` option, which only affects IO done by readers and writers themselves, does not block this vulnerability. The vulnerability is patched in pandoc 3.1.4. As a workaround, audit the pandoc command and disallow PDF output and the `--extract-media` option.
Configurations

Configuration 1 (hide)

cpe:2.3:a:pandoc:pandoc:*:*:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

History

21 Nov 2024, 08:09

Type Values Removed Values Added
References () https://github.com/jgm/pandoc/security/advisories/GHSA-xj5q-fv23-575g - Exploit, Vendor Advisory () https://github.com/jgm/pandoc/security/advisories/GHSA-xj5q-fv23-575g - Exploit, Vendor Advisory
References () https://lists.debian.org/debian-lts-announce/2023/07/msg00029.html - Mailing List, Third Party Advisory () https://lists.debian.org/debian-lts-announce/2023/07/msg00029.html - Mailing List, Third Party Advisory
References () https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JGRJHU2FTSGTHHRTNDF7STEKLKKA25JN/ - () https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JGRJHU2FTSGTHHRTNDF7STEKLKKA25JN/ -
References () https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LYP3FKDS3KAYMQUZVVL73IUI4CWSKLKP/ - () https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LYP3FKDS3KAYMQUZVVL73IUI4CWSKLKP/ -
References () https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QI6RBP6ZKVC2OOCV6SU2FUHPMAXDDJFU/ - () https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QI6RBP6ZKVC2OOCV6SU2FUHPMAXDDJFU/ -
CVSS v2 : unknown
v3 : 5.0
v2 : unknown
v3 : 6.1

31 Mar 2024, 03:15

Type Values Removed Values Added
References
  • () https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LYP3FKDS3KAYMQUZVVL73IUI4CWSKLKP/ -

30 Mar 2024, 02:15

Type Values Removed Values Added
References
  • () https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JGRJHU2FTSGTHHRTNDF7STEKLKKA25JN/ -
  • () https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QI6RBP6ZKVC2OOCV6SU2FUHPMAXDDJFU/ -

01 Feb 2024, 14:08

Type Values Removed Values Added
References (MISC) https://github.com/jgm/pandoc/security/advisories/GHSA-xj5q-fv23-575g - Vendor Advisory (MISC) https://github.com/jgm/pandoc/security/advisories/GHSA-xj5q-fv23-575g - Exploit, Vendor Advisory
References (MISC) https://lists.debian.org/debian-lts-announce/2023/07/msg00029.html - (MISC) https://lists.debian.org/debian-lts-announce/2023/07/msg00029.html - Mailing List, Third Party Advisory
First Time Debian
Debian debian Linux
CPE cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

25 Jul 2023, 21:15

Type Values Removed Values Added
References
  • (MISC) https://lists.debian.org/debian-lts-announce/2023/07/msg00029.html -
CWE NVD-CWE-noinfo CWE-20

12 Jul 2023, 18:09

Type Values Removed Values Added
CPE cpe:2.3:a:pandoc:pandoc:*:*:*:*:*:*:*:*
References (MISC) https://github.com/jgm/pandoc/security/advisories/GHSA-xj5q-fv23-575g - (MISC) https://github.com/jgm/pandoc/security/advisories/GHSA-xj5q-fv23-575g - Vendor Advisory
First Time Pandoc
Pandoc pandoc
CVSS v2 : unknown
v3 : unknown
v2 : unknown
v3 : 5.0
CWE CWE-20 NVD-CWE-noinfo

05 Jul 2023, 21:15

Type Values Removed Values Added
New CVE

Information

Published : 2023-07-05 21:15

Updated : 2024-11-21 08:09


NVD link : CVE-2023-35936

Mitre link : CVE-2023-35936

CVE.ORG link : CVE-2023-35936


JSON object : View

Products Affected

debian

  • debian_linux

pandoc

  • pandoc
CWE
CWE-20

Improper Input Validation

NVD-CWE-noinfo