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CVE-2018-18557

Publication date 22 October 2018

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

8.8 · High

Score breakdown

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

Parameter Value
Base score 8.8 · High
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact 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