CVE-2021-32610
In Archive_Tar before 1.4.14, symlinks can refer to targets outside of the extracted archive, a different vulnerability than CVE-2020-36193.
02 / AFFECTED SOFTWARE
Affected packages
18 explicit affected versions
20 explicit affected versions
174 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
In Archive_Tar before 1.4.14, symlinks can refer to targets outside of the extracted archive, a different vulnerability than CVE-2020-36193.
The Drupal project uses the pear Archive\_Tar library, which has released a security update that impacts Drupal. The vulnerability is mitigated by the fact that Drupal core's use of the Archive\_Tar library is not vulnerable, as it does not permit symlinks. Exploitation may be possible if contrib or custom code uses the library to extract tar archives (for example .tar, .tar.gz, .bz2, or .tlz) which come from a potentially untrusted source. This advisory is not covered by [Drupal Steward](/steward).
In Archive_Tar before 1.4.14, symlinks can refer to targets outside of the extracted archive, a different vulnerability than CVE-2020-36193.
05 / REFERENCES
Further evidence
- https://github.com/pear/Archive_Tar/commit/7789ebb2f34f9e4adb3a4152ad0d1548930a9755
- https://github.com/pear/Archive_Tar/commit/b5832439b1f37331fb4f87e67fe4f
- https://github.com/pear/Archive_Tar/releases/tag/1.4.14
- https://lists.debian.org/debian-lts-announce/2021/07/msg00023.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/42GPGVVFTLJYAKRI75IVB5R45NYQGEUR/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CAODVMHGL5MHQWQAQTXQ7G7OE3VQZ7LS/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/G5LTY6COQYNMMHQJ3QIOJHEWCKD4XDFH/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VJQQYDAOWHD6RDITDRPHFW7WY6BS3V5N/
- https://www.drupal.org/sa-core-2021-004
- https://github.com/pear/Archive_Tar
- https://lists.fedoraproject.org/archives/list/[email protected]/message/42GPGVVFTLJYAKRI75IVB5R45NYQGEUR
- https://lists.fedoraproject.org/archives/list/[email protected]/message/CAODVMHGL5MHQWQAQTXQ7G7OE3VQZ7LS
- https://lists.fedoraproject.org/archives/list/[email protected]/message/G5LTY6COQYNMMHQJ3QIOJHEWCKD4XDFH
- https://lists.fedoraproject.org/archives/list/[email protected]/message/VJQQYDAOWHD6RDITDRPHFW7WY6BS3V5N
- https://nvd.nist.gov/vuln/detail/CVE-2021-32610