Bug 1904001 (CVE-2020-28948) - CVE-2020-28948 Archive_Tar: allows an unserialization attack because phar: is blocked but PHAR: is not blocked
Summary: CVE-2020-28948 Archive_Tar: allows an unserialization attack because phar: is...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2020-28948
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: 1904002 1910450 1910451 1910452 1910453 1910454 2124841 2124842
Blocks: 1910324
TreeView+ depends on / blocked
 
Reported: 2020-12-03 11:08 UTC by Marian Rehak
Modified: 2024-03-25 17:22 UTC (History)
11 users (show)

Fixed In Version: Archive_Tar 1.4.11
Doc Type: If docs needed, set a value
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Clone Of:
Environment:
Last Closed: 2022-12-03 17:33:21 UTC
Embargoed:

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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 08:29:36 UTC
Red Hat Product Errata RHSA-2022:7340 0 None None None 2022-11-02 16:35:53 UTC

Description Marian Rehak 2020-12-03 11:08:04 UTC 
Archive_Tar through 1.4.10 allows an unserialization attack because phar: is blocked but PHAR: is not blocked.

https://github.com/pear/Archive_Tar/issues/33
https://lists.debian.org/debian-lts-announce/2020/11/msg00045.html
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4V35LBRM6HBCXBVCITKQ4UEBTXO2EG7B/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NBYZSHYTIOBK6V7C4N7TP6KIKCRKLVWP/
Comment 1 Marian Rehak 2020-12-03 11:08:35 UTC 
Created perl-Archive-Tar tracking bugs for this issue:

Affects: fedora-all [bug 1904002]
Comment 5 msiddiqu 2020-12-23 12:37:55 UTC 
Upstream issue:

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

Upstream commit:

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

References: 
 
Drupal: https://www.drupal.org/sa-core-2020-013
Comment 9 Doran Moppert 2020-12-24 01:21:45 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 11 errata-xmlrpc 2022-09-15 08:26:44 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 12 errata-xmlrpc 2022-09-15 08:29:33 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 13 errata-xmlrpc 2022-11-02 16:35:51 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
Comment 14 Product Security DevOps Team 2022-12-03 17:33:18 UTC 
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2020-28948
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