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CVE-2016-6911

Publication date 14 October 2016

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

5.5 · Medium

Score breakdown

The dynamicGetbuf function in the GD Graphics Library (aka libgd) before 2.2.4 allows remote attackers to cause a denial of service (out-of-bounds read) via a crafted TIFF image.

Read the notes from the security team

Status

Package Ubuntu Release Status
libgd2 16.10 yakkety
Fixed 2.2.1-1ubuntu3.2
16.04 LTS xenial
Fixed 2.1.1-4ubuntu0.16.04.5
14.04 LTS trusty
Fixed 2.1.0-3ubuntu0.5
12.04 LTS precise
Fixed 2.0.36~rc1~dfsg-6ubuntu2.3
php5 16.10 yakkety Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty
Not affected
12.04 LTS precise
Not affected
php7.0 16.10 yakkety
Not affected
16.04 LTS xenial
Not affected
14.04 LTS trusty Not in release
12.04 LTS precise Not in release

Notes

mdeslaur

php uses the system libgd2 0020-Fix-invalid-read-in-gdImageCreateFromTiffPtr.patch patch in jessie package. No sign patch is yet commited upstream.

Severity score breakdown

Parameter Value
Base score 5.5 · Medium
Attack vector Local
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

References

Related Ubuntu Security Notices (USN)

    • USN-3117-1
    • GD library vulnerabilities
    • 1 November 2016

Other references