=========================================================================Ubuntu Security Notice USN-4277-1
February 11, 2020
libexif vulnerabilities
=========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 19.10
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS
- Ubuntu 14.04 ESM
- Ubuntu 12.04 ESM
Summary:
Several security issues were fixed in libexif.
Software Description:
- 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
After a standard system update you need to restart your session to effect the necessary
changes.
References:
https://ubuntu.com/security/notices/USN-4277-1
CVE-2016-6328, CVE-2017-7544, CVE-2019-9278
Package Information:
https://launchpad.net/ubuntu/+source/libexif/0.6.21-5.1ubuntu0.1
https://launchpad.net/ubuntu/+source/libexif/0.6.21-4ubuntu0.1
https://launchpad.net/ubuntu/+source/libexif/0.6.21-2ubuntu0.1
