Bug 2000707 (CVE-2021-33938) - CVE-2021-33938 libsolv: heap-based buffer overflow in prune_to_recommended() in src/policy.c
Summary: CVE-2021-33938 libsolv: heap-based buffer overflow in prune_to_recommended() ...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2021-33938
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: 2000708 2001110 2001111 2002067 2002068 2002069 2002070 2002071 2002072 2002799 2013731 2013732 2016360
Blocks: 2000709
TreeView+ depends on / blocked
 
Reported: 2021-09-02 17:56 UTC by Guilherme de Almeida Suckevicz
Modified: 2022-07-05 14:26 UTC (History)
47 users (show)

Fixed In Version: libsolv-0.7.17
Doc Type: If docs needed, set a value
Doc Text:
A flaw was found in libsolv. A buffer overflow vulnerability in the prune_to_recommend function allows attackers to cause a denial of service. The highest threat from this vulnerability is to system availability.
Clone Of:
Environment:
Last Closed: 2021-11-02 14:08:14 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2021:4060 0 None None None 2021-11-02 08:44:31 UTC
Red Hat Product Errata RHSA-2022:5498 0 None None None 2022-07-05 14:26:48 UTC

Description Guilherme de Almeida Suckevicz 2021-09-02 17:56:08 UTC 
Buffer overflow vulnerability in function prune_to_recommended in src/policy.c in libsolv before 0.7.17 allows attackers to cause a Denial of Service.

Reference:
https://github.com/openSUSE/libsolv/issues/420
Comment 1 Guilherme de Almeida Suckevicz 2021-09-02 17:56:31 UTC 
Created libsolv tracking bugs for this issue:

Affects: fedora-all [bug 2000708]
Comment 6 Garrett Tucker 2021-10-01 14:01:59 UTC 
Upstream Patch: https://github.com/openSUSE/libsolv/commit/0077ef29eb46d2e1df2f230fc95a1d9748d49dec
Comment 9 errata-xmlrpc 2021-11-02 08:44:28 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2021:4060 https://access.redhat.com/errata/RHSA-2021:4060
Comment 10 Product Security DevOps Team 2021-11-02 14:08:14 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-2021-33938
Comment 11 errata-xmlrpc 2022-07-05 14:26:45 UTC 
This issue has been addressed in the following products:

  Red Hat Satellite 6.11 for RHEL 7
  Red Hat Satellite 6.11 for RHEL 8

Via RHSA-2022:5498 https://access.redhat.com/errata/RHSA-2022:5498
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