CVEvulnerability
CVE-2020-36193
CISA Known Exploited Vulnerability
PEAR Archive_Tar Improper Link Resolution Vulnerability — PEAR Archive_Tar
PEAR Archive_Tar Tar.php allows write operations with directory traversal due to inadequate checking of symbolic links. PEAR stands for PHP Extension and Application Repository and it is an open-source framework and distribution system for reusable PHP components with known usage in third-party products such as Drupal Core and Red Hat Linux.
- Added to KEV
- 2022-08-25
- Remediation due
- 2022-09-15
- Ransomware use
- Unknown
- Required action
- Apply updates per vendor instructions.
- Notes
- https://github.com/pear/Archive_Tar/commit/cde460582ff389404b5b3ccb59374e9b389de916, https://www.drupal.org/sa-core-2021-001, https://access.redhat.com/security/cve/cve-2020-36193; https://nvd.nist.gov/vuln/detail/CVE-2020-36193
- Status
- Analyzed
- Published
- 2021-01-18
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- CVSS 2.0 ([email protected])
- 5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:P/A:N
- Weaknesses
- CWE-22, CWE-59
Description
Tar.php in Archive_Tar through 1.4.11 allows write operations with Directory Traversal due to inadequate checking of symbolic links, a related issue to CVE-2020-28948.
Affected configurations
• php archive tar (<= 1.4.11)
• fedoraproject fedora 32
• fedoraproject fedora 33
• fedoraproject fedora 34
• fedoraproject fedora 35
• debian debian linux 9.0
• debian debian linux 10.0
• drupal drupal (>= 7.0 < 7.78)
• drupal drupal (>= 8.9.0 < 8.9.13)
• drupal drupal (>= 9.0.0 < 9.0.11)
• drupal drupal (>= 9.1.0 < 9.1.3)
Related
References
- https://github.com/pear/Archive_Tar/commit/cde460582ff389404b5b3ccb59374e9b389de916 Patch
- https://lists.debian.org/debian-lts-announce/2021/01/msg00018.html Mailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/04/msg00007.html Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/42GPGVVFTLJYAKRI75IVB5R45NYQGEUR/ Broken Link
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FOZNK4FIIV7FSFCJNNFWMJZTTV7NFJV2/ Broken Link
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VJQQYDAOWHD6RDITDRPHFW7WY6BS3V5N/ Broken Link
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YKD5WEFA4WT6AVTMRAYBNXZNLWZHM7FH/ Broken Link
- https://security.gentoo.org/glsa/202101-23 Third Party Advisory
- https://www.debian.org/security/2021/dsa-4894 Third Party Advisory
- https://www.drupal.org/sa-core-2021-001 Third Party Advisory
- https://github.com/pear/Archive_Tar/commit/cde460582ff389404b5b3ccb59374e9b389de916 Patch
- https://lists.debian.org/debian-lts-announce/2021/01/msg00018.html Mailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/04/msg00007.html Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/42GPGVVFTLJYAKRI75IVB5R45NYQGEUR/ Broken Link
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FOZNK4FIIV7FSFCJNNFWMJZTTV7NFJV2/ Broken Link
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VJQQYDAOWHD6RDITDRPHFW7WY6BS3V5N/ Broken Link
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YKD5WEFA4WT6AVTMRAYBNXZNLWZHM7FH/ Broken Link
- https://security.gentoo.org/glsa/202101-23 Third Party Advisory
- https://www.debian.org/security/2021/dsa-4894 Third Party Advisory
- https://www.drupal.org/sa-core-2021-001 Third Party Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-36193 US Government Resource