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CVE-2021-3781

Publication date 8 September 2021

Last updated 24 July 2024

Ubuntu priority

High

Why this priority?

Cvss 3 Severity Score

9.9 · Critical

Score breakdown

A trivial sandbox (enabled with the `-dSAFER` option) escape flaw was found in the ghostscript interpreter by injecting a specially crafted pipe command. This flaw allows a specially crafted document to execute arbitrary commands on the system in the context of the ghostscript interpreter. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

Read the notes from the security team

Status

Package Ubuntu Release Status
ghostscript 22.04 LTS jammy
Fixed 9.54.0~dfsg1-0ubuntu2
21.10 impish
Fixed 9.54.0~dfsg1-0ubuntu2
21.04 hirsute
Fixed 9.53.3~dfsg-7ubuntu0.1
20.04 LTS focal
Fixed 9.50~dfsg-5ubuntu4.3
18.04 LTS bionic
Not affected
16.04 LTS xenial
Not affected
14.04 LTS trusty Not in release

Notes

mdeslaur

9.50 to 9.55 are vulnerable

Severity score breakdown

Parameter Value
Base score 9.9 · Critical
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Scope Changed
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

    • USN-5075-1
    • Ghostscript vulnerability
    • 10 September 2021

Other references