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AUSCERT External Security Bulletin Redistribution
ESB-2020.0481
USN-4277-1: libexif vulnerabilities
12 February 2020
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AusCERT Security Bulletin Summary
---------------------------------
Product: libexif
Publisher: Ubuntu
Operating System: Ubuntu
Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction
Denial of Service -- Remote with User Interaction
Access Confidential Data -- Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2019-9278 CVE-2017-7544 CVE-2016-6328
Reference: ASB-2019.0248
ESB-2020.0468
ESB-2020.0445
Original Bulletin:
https://usn.ubuntu.com/4277-1/
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USN-4277-1: libexif vulnerabilities
11 February 2020
libexif vulnerabilities
A security issue affects these releases of Ubuntu and its derivatives:
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
Liu Bingchang discovered that libexif incorrectly handled certain files. An
attacker could possibly use this issue to access sensitive information or cause
a denial of service. This issue only affected Ubuntu 12.04 ESM, Ubuntu 14.04
ESM and Ubuntu 16.04 LTS. (CVE-2016-6328)
Lili Xu and Bingchang Liu discovered that libexif incorrectly handled certain
files. An attacker could possibly use this issue to access sensitive
information or cause a denial of service. This issue only affected Ubuntu 12.04
ESM, Ubuntu 14.04 ESM and Ubuntu 16.04 LTS. (CVE-2017-7544)
It was discovered that libexif incorrectly handled certain files. An attacker
could possibly use this issue to execute arbitrary code. (CVE-2019-9278)
Update instructions
The problem can be corrected by updating your system to the following package
versions:
Ubuntu 19.10
libexif12 - 0.6.21-5.1ubuntu0.1
Ubuntu 18.04 LTS
libexif12 - 0.6.21-4ubuntu0.1
Ubuntu 16.04 LTS
libexif12 - 0.6.21-2ubuntu0.1
Ubuntu 14.04 ESM
libexif12 - 0.6.21-1ubuntu1+esm1
Ubuntu 12.04 ESM
libexif12 - 0.6.20-2ubuntu0.2
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-2016-6328
o CVE-2017-7544
o CVE-2019-9278
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