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Ubuntu 21.04 & 20.04 LTS USN-5075-1 Critical: Ghostscript DoS Risk

ubuntu
Calendar Grey September 10, 2021
Dist Ubuntu Esm H88
Ubuntu Security Notice USN-5076-1 tackles a vulnerability in OpenSSL that could permit unauthorized data manipulation and compromise system integrity.
Ghostscript could be made to crash, access files, or run programs if it opened a specially crafted file.

Summary

Ghostscript could be made to crash, access files, or run programs if it

opened a specially crafted file.

Software Description:

- ghostscript: PostScript and PDF interpreter

Details:

It was discovered that Ghostscript incorrectly handled certain PostScript

files. If a user or automated system were tricked into processing a

specially crafted file, a remote attacker could possibly use this issue to

access arbitrary files, execute arbitrary code, or cause a denial of

service.

Topics%20covered

Topics Covered

security advisory denial of service software update remote access ghostscript Ubuntu

Update Instructions

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

Ubuntu 21.04:
  ghostscript                     9.53.3~dfsg-7ubuntu0.1
  libgs9                          9.53.3~dfsg-7ubuntu0.1

Ubuntu 20.04 LTS:
  ghostscript                     9.50~dfsg-5ubuntu4.3
  libgs9                          9.50~dfsg-5ubuntu4.3

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

References

https://ubuntu.com/security/notices/USN-5075-1

CVE-2021-3781

Severity
critical
Lowest
Low
Medium
High
Critical

September 10, 2021

Topics%20covered

Topics Covered

security advisory denial of service software update remote access ghostscript Ubuntu

Package Information

https://launchpad.net/ubuntu/+source/ghostscript/9.53.3~dfsg-7ubuntu0.1
https://launchpad.net/ubuntu/+source/ghostscript/9.50~dfsg-5ubuntu4.3

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