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CVE-2016-7979

Publication date 6 October 2016

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

9.8 · Critical

Score breakdown

Ghostscript before 9.21 might allow remote attackers to bypass the SAFER mode protection mechanism and consequently execute arbitrary code by leveraging type confusion in .initialize_dsc_parser.

Read the notes from the security team

Status

Package Ubuntu Release Status
ghostscript 16.10 yakkety
Fixed 9.19~dfsg+1-0ubuntu6.2
16.04 LTS xenial
Fixed 9.18~dfsg~0-0ubuntu2.2
14.04 LTS trusty
Fixed 9.10~dfsg-0ubuntu10.5
12.04 LTS precise
Fixed 9.05~dfsg-0ubuntu4.4

Notes

sbeattie

reproducer in ghostscript bug report

Patch details

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

Package Patch details
ghostscript

Severity score breakdown

Parameter Value
Base score 9.8 · Critical
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H