CVE-2020-27792

Publication date 19 August 2022

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

7.1 · High

Score breakdown

A heap-based buffer overwrite vulnerability was found in GhostScript's lp8000_print_page() function in the gdevlp8k.c file. This flaw allows an attacker to trick a user into opening a crafted PDF file, triggering the heap buffer overflow that could lead to memory corruption or a denial of service.

Status

Package Ubuntu Release Status
ghostscript 22.10 kinetic
Not affected
22.04 LTS jammy
Not affected
20.04 LTS focal
Fixed 9.50~dfsg-5ubuntu4.6
18.04 LTS bionic
Fixed 9.26~dfsg+0-0ubuntu0.18.04.17
16.04 LTS xenial
14.04 LTS trusty Ignored end of standard support

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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 7.1 · High
Attack vector Local
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality None
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H

References

Related Ubuntu Security Notices (USN)

    • USN-5618-1
    • Ghostscript vulnerability
    • 20 September 2022
    • USN-5643-1
    • Ghostscript vulnerabilities
    • 27 September 2022

Other references