CVE-2018-18557

Publication date 22 October 2018

Last updated 25 August 2025

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

8.8 · High

Score breakdown

Description

LibTIFF 3.9.3, 3.9.4, 3.9.5, 3.9.6, 3.9.7, 4.0.0alpha4, 4.0.0alpha5, 4.0.0alpha6, 4.0.0beta7, 4.0.0, 4.0.1, 4.0.2, 4.0.3, 4.0.4, 4.0.4beta, 4.0.5, 4.0.6, 4.0.7, 4.0.8 and 4.0.9 (with JBIG enabled) decodes arbitrarily-sized JBIG into a buffer, ignoring the buffer size, which leads to a tif_jbig.c JBIGDecode out-of-bounds write.

Status

Package Ubuntu Release Status
tiff 18.10 cosmic
Fixed 4.0.9-6ubuntu0.1
18.04 LTS bionic
Fixed 4.0.9-5ubuntu0.1
16.04 LTS xenial
Fixed 4.0.6-1ubuntu0.5
14.04 LTS trusty
Fixed 4.0.3-7ubuntu0.10

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
tiff

Severity score breakdown

CVSS version: CVSS v3.0

Base score 8.8 · High

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

    • USN-3864-1
    • LibTIFF vulnerabilities
    • 22 January 2019
    • USN-3906-2
    • LibTIFF vulnerabilities
    • 18 March 2019

Other references

Access our resources on patching vulnerabilities