Bug 1910323 (CVE-2020-28949) - CVE-2020-28949 Archive_Tar: improper filename sanitization leads to file overwrites
Summary: CVE-2020-28949 Archive_Tar: improper filename sanitization leads to file over...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2020-28949
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1910450 1910451 1910452 1910453 1910454 2124841 2124842 2170443
Blocks: 1910324
TreeView+ depends on / blocked
 
Reported: 2020-12-23 13:03 UTC by msiddiqu
Modified: 2023-03-16 13:56 UTC (History)
5 users (show)

Fixed In Version: Archive_Tar 1.4.11
Doc Type: If docs needed, set a value
Doc Text:
A flaw was found in the Archive_Tar package. PEAR Archive_Tar could allow a local authenticated attacker to bypass security restrictions caused by a stream-wrapper attack. An attacker can overwrite arbitrary files on the system using a specially-crafted tar archive.
Clone Of:
Environment:
Last Closed: 2022-10-31 13:45:59 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2022:6541 0 None None None 2022-09-15 08:26:47 UTC
Red Hat Product Errata RHSA-2022:6542 0 None None None 2022-09-15 08:29:38 UTC
Red Hat Product Errata RHSA-2022:7340 0 None None None 2022-11-02 16:36:06 UTC

Description msiddiqu 2020-12-23 13:03:17 UTC 
Archive_Tar through 1.4.10 has :// filename sanitization only to address phar attacks, and thus any other stream-wrapper attack (such as file:// to overwrite files) can still succeed.
Comment 1 msiddiqu 2020-12-23 13:04:29 UTC 
Upstream issue:

https://github.com/pear/Archive_Tar/issues/33

Upstream commit:

https://github.com/pear/Archive_Tar/commit/0670a05fdab997036a3fc3ef113b8f5922e574da

References: 
 
https://www.drupal.org/sa-core-2020-013
Comment 3 Doran Moppert 2020-12-24 01:21:52 UTC 
Note this vulnerability affects the php Archive_Tar package, not the perl package with the same name.  Archive_Tar is included in Fedora and Red Hat Enterprise Linux bundled in the php-pear package.
Comment 6 errata-xmlrpc 2022-09-15 08:26:45 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.4 Extended Update Support

Via RHSA-2022:6541 https://access.redhat.com/errata/RHSA-2022:6541
Comment 7 errata-xmlrpc 2022-09-15 08:29:35 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2022:6542 https://access.redhat.com/errata/RHSA-2022:6542
Comment 8 errata-xmlrpc 2022-11-02 16:36:04 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2022:7340 https://access.redhat.com/errata/RHSA-2022:7340
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