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Ubuntu 20.04 LTS USN-6364-1 Critical Ghostscript Denial Of Service

ubuntu
Calendar Grey September 13, 2023
Dist Ubuntu Esm H88
Ubuntu Security Notice USN-6364-1 contains critical updates for Ghostscript addressing denial of service threats.
Several security issues were fixed in Ghostscript.

Summary

Several security issues were fixed in Ghostscript.

Software Description:

- ghostscript: PostScript and PDF interpreter

Details:

It was discovered that Ghostscript incorrectly handled certain PDF files.

An attacker could possibly use this issue to cause a denial of service.

(CVE-2020-21710)

It was discovered that Ghostscript incorrectly handled certain PDF files.

An attacker could possibly use this issue to cause a denial of service,

or possibly execute arbitrary code. (CVE-2020-21890)

Topics%20covered

Topics Covered

security advisory denial of service critical ghostscript Ubuntu

Update Instructions

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 20.04 LTS:
   ghostscript                     9.50~dfsg-5ubuntu4.10
   libgs9                          9.50~dfsg-5ubuntu4.10

Ubuntu 18.04 LTS (Available with Ubuntu Pro):
   ghostscript                     9.26~dfsg+0-0ubuntu0.18.04.18+esm2
   libgs9                          9.26~dfsg+0-0ubuntu0.18.04.18+esm2

Ubuntu 16.04 LTS (Available with Ubuntu Pro):
   ghostscript                     9.26~dfsg+0-0ubuntu0.16.04.14+esm7
   libgs9                          9.26~dfsg+0-0ubuntu0.16.04.14+esm7

In general, a standard system update will make all the necessary changes.

References

https://ubuntu.com/security/notices/USN-6364-1

CVE-2020-21710, CVE-2020-21890

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-6364-1

Topics%20covered

Topics Covered

security advisory denial of service critical ghostscript Ubuntu

Package Information

https://launchpad.net/ubuntu/+source/ghostscript/9.50~dfsg-5ubuntu4.10

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