CVE-2020-36193: PEAR Archive_Tar Improper Link Resolution Vulnerability
First published: Mon Jan 18 2021(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| composer/pear/archive_tar | <1.4.12 | |
| 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 | |
| debian/php-pear | <=1:1.10.9+submodules+notgz-1.1<=1:1.10.6+submodules+notgz-1.1+deb10u1<=1:1.10.6+submodules+notgz-1 | 1:1.10.12+submodules+notgz+20210212-1 1:1.10.6+submodules+notgz-1.1+deb10u2 |
| redhat/php-pear | <1:1.9.4-23.el7_9 | 1:1.9.4-23.el7_9 |
| redhat/Archive_Tar | <1.4.12 | 1.4.12 |
| debian/php-pear | 1:1.10.6+submodules+notgz-1.1+deb10u2 1:1.10.12+submodules+notgz+20210212-1 1:1.10.13+submodules+notgz+2022032202-2 |
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Reference Links
- 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://security-tracker.debian.org/tracker/CVE-2020-28948
- https://github.com/FriendsOfPHP/security-advisories/pull/525
- https://security-tracker.debian.org/tracker/CVE-2020-36193
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=980428
- https://github.com/pear/Archive_Tar/commit/cde460582ff389404b5b3ccb59374e9b389de916
- https://lists.debian.org/debian-lts-announce/2021/01/msg00018.html
- https://lists.debian.org/debian-lts-announce/2021/04/msg00007.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/42GPGVVFTLJYAKRI75IVB5R45NYQGEUR/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FOZNK4FIIV7FSFCJNNFWMJZTTV7NFJV2/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VJQQYDAOWHD6RDITDRPHFW7WY6BS3V5N/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YKD5WEFA4WT6AVTMRAYBNXZNLWZHM7FH/
- https://security.gentoo.org/glsa/202101-23
- https://www.debian.org/security/2021/dsa-4894
- https://www.drupal.org/sa-core-2021-001
- https://access.redhat.com/security/cve/CVE-2020-28948
- https://access.redhat.com/errata/RHSA-2022:6541
- https://access.redhat.com/errata/RHSA-2022:6542
- https://access.redhat.com/errata/RHSA-2022:7340
- https://bugzilla.redhat.com/show_bug.cgi?id=1942961
- https://www.cve.org/CVERecord?id=CVE-2020-36193 https://nvd.nist.gov/vuln/detail/CVE-2020-36193
- https://github.com/pear/Archive_Tar/commit/dc721bd8616e05ea89b7abcff4cf1e3e96963183
- https://github.com/pear/Archive_Tar/commit/b6da5c32254162fa0752616479fb3d3c5297c1cf
- https://github.com/pear/Archive_Tar/commit/7d8782d95f74b5889bfaaad43e74086f1918ec2b
Parent vulnerabilities
(Appears in the following advisories)
Frequently Asked Questions
What is CVE-2020-36193?
CVE-2020-36193 is a vulnerability in PEAR Archive_Tar that allows write operations with directory traversal due to inadequate checking of symbolic links.
How does CVE-2020-36193 impact PEAR Archive_Tar?
CVE-2020-36193 allows attackers to perform directory traversal and potentially write files outside of the intended directory.
What is the severity level of CVE-2020-36193?
CVE-2020-36193 has a severity level of 7.5 (High).
How can I fix CVE-2020-36193 in PEAR Archive_Tar?
To fix CVE-2020-36193, upgrade to version 1.4.12 of PEAR Archive_Tar.
Are there any references related to CVE-2020-36193?
Yes, you can find references related to CVE-2020-36193 at the following links: [Link 1](https://github.com/pear/Archive_Tar/commit/cde460582ff389404b5b3ccb59374e9b389de916), [Link 2](https://www.drupal.org/sa-core-2021-001).
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