Bug 1834950 (CVE-2020-12767) - CVE-2020-12767 libexif: divide-by-zero in exif_entry_get_value function in exif-entry.c
Summary: CVE-2020-12767 libexif: divide-by-zero in exif_entry_get_value function in ex...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2020-12767
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1834951 1836360 1836361
Blocks: 1834953
TreeView+ depends on / blocked
 
Reported: 2020-05-12 18:18 UTC by Guilherme de Almeida Suckevicz
Modified: 2020-11-04 03:43 UTC (History)
11 users (show)

Fixed In Version:
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Last Closed: 2020-09-29 22:00:52 UTC
Embargoed:

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System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2020:4040 0 None None None 2020-09-29 20:50:44 UTC
Red Hat Product Errata RHSA-2020:4766 0 None None None 2020-11-04 03:43:13 UTC

Description Guilherme de Almeida Suckevicz 2020-05-12 18:18:48 UTC 
exif_entry_get_value in exif-entry.c in libexif 0.6.21 has a divide-by-zero error.

Reference:
https://github.com/libexif/libexif/issues/31

Upstream commit:
https://github.com/libexif/libexif/pull/32/commits/4431cd0d67c2b17bf764fa9c253f11051ae8355a
Comment 1 Guilherme de Almeida Suckevicz 2020-05-12 18:19:04 UTC 
Created libexif tracking bugs for this issue:

Affects: fedora-all [bug 1834951]
Comment 4 errata-xmlrpc 2020-09-29 20:50:42 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2020:4040 https://access.redhat.com/errata/RHSA-2020:4040
Comment 5 Product Security DevOps Team 2020-09-29 22:00:52 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-2020-12767
Comment 6 errata-xmlrpc 2020-11-04 03:43:12 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2020:4766 https://access.redhat.com/errata/RHSA-2020:4766
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