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AUSCERT External Security Bulletin Redistribution
23 January 2019
AusCERT Security Bulletin Summary
Operating System: Ubuntu
Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction
Denial of Service -- Remote with User Interaction
CVE Names: CVE-2018-18661 CVE-2018-18557 CVE-2018-17101
CVE-2018-17100 CVE-2018-10963 CVE-2018-8905
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Ubuntu Security Notice USN-3864-1
January 22, 2019
A security issue affects these releases of Ubuntu and its derivatives:
- - Ubuntu 18.10
- - Ubuntu 18.04 LTS
- - Ubuntu 16.04 LTS
- - Ubuntu 14.04 LTS
LibTIFF could be made to crash or run programs as your login if it opened a
specially crafted file.
- - tiff: Tag Image File Format (TIFF) library
It was discovered that LibTIFF incorrectly handled certain malformed
images. If a user or automated system were tricked into opening a specially
crafted image, a remote attacker could crash the application, leading to a
denial of service, or possibly execute arbitrary code with user privileges.
The problem can be corrected by updating your system to the following
Ubuntu 18.04 LTS:
Ubuntu 16.04 LTS:
Ubuntu 14.04 LTS:
In general, a standard system update will make all the necessary changes.
CVE-2018-10963, CVE-2018-17100, CVE-2018-17101, CVE-2018-18557,
CVE-2018-18661, CVE-2018-7456, CVE-2018-8905
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