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AUSCERT External Security Bulletin Redistribution
ESB-2020.1683
USN-4358-1: libexif vulnerabilities
14 May 2020
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AusCERT Security Bulletin Summary
---------------------------------
Product: libexif
Publisher: Ubuntu
Operating System: Ubuntu
Impact/Access: Increased Privileges -- Remote with User Interaction
Denial of Service -- Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2020-12767 CVE-2018-20030
Reference: ESB-2020.0718
ESB-2020.0680
Original Bulletin:
https://usn.ubuntu.com/4358-1/
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USN-4358-1: libexif vulnerabilities
13 May 2020
libexif vulnerabilities
A security issue affects these releases of Ubuntu and its derivatives:
o Ubuntu 20.04 LTS
o Ubuntu 19.10
o Ubuntu 18.04 LTS
o Ubuntu 16.04 LTS
o Ubuntu 14.04 ESM
o Ubuntu 12.04 ESM
Summary
Several security issues were fixed in libexif.
Software Description
o libexif - library to parse EXIF files
Details
It was discovered that libexif incorrectly handled certain tags. An attacker
could possibly use this issue to cause a denial of service. (CVE-2018-20030)
It was discovered that libexif incorrectly handled certain inputs. An attacker
could possibly use this issue to cause a crash. (CVE-2020-12767)
Update instructions
The problem can be corrected by updating your system to the following package
versions:
Ubuntu 20.04 LTS
libexif12 - 0.6.21-6ubuntu0.1
Ubuntu 19.10
libexif12 - 0.6.21-5.1ubuntu0.2
Ubuntu 18.04 LTS
libexif12 - 0.6.21-4ubuntu0.2
Ubuntu 16.04 LTS
libexif12 - 0.6.21-2ubuntu0.2
Ubuntu 14.04 ESM
libexif12 - 0.6.21-1ubuntu1+esm2
Ubuntu 12.04 ESM
libexif12 - 0.6.20-2ubuntu0.3
To update your system, please follow these instructions: https://
wiki.ubuntu.com/Security/Upgrades .
After a standard system update you need to restart your session to effect the
necessary changes.
References
o CVE-2018-20030
o CVE-2020-12767
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