[USN-7103-1] Ghostscript vulnerabilities

[Marc Deslauriers]

==========================================================================
Ubuntu Security Notice USN-7103-1
November 12, 2024

ghostscript vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 24.10
- Ubuntu 24.04 LTS
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS

Summary:

Several security issues were fixed in Ghostscript.

Software Description:
- ghostscript: PostScript and PDF interpreter

Details:

It was discovered that Ghostscript incorrectly handled parsing certain PS
files. An attacker could use this issue to cause Ghostscript to crash,
resulting in a denial of service, or possibly execute arbitrary code.
(CVE-2024-46951, CVE-2024-46953, CVE-2024-46955, CVE-2024-46956)

It was discovered that Ghostscript incorrectly handled parsing certain PDF
files. An attacker could use this issue to cause Ghostscript to crash,
resulting in a denial of service, or possibly execute arbitrary code. This
issue only affected Ubuntu 22.04 LTS, Ubuntu 24.04 LTS, and Ubuntu 24.10.
(CVE-2024-46952)

It was discovered that Ghostscript incorrectly handled parsing certain PS
files. An attacker could use this issue to cause Ghostscript to crash,
resulting in a denial of service, or possibly bypass file path validation.
This issue only affected Ubuntu 24.04 LTS and Ubuntu 24.10.
(CVE-2024-46954)

Update instructions:

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

Ubuntu 24.10
   ghostscript                     10.03.1~dfsg1-0ubuntu2.1
   libgs10                         10.03.1~dfsg1-0ubuntu2.1

Ubuntu 24.04 LTS
   ghostscript                     10.02.1~dfsg1-0ubuntu7.4
   libgs10                         10.02.1~dfsg1-0ubuntu7.4

Ubuntu 22.04 LTS
   ghostscript                     9.55.0~dfsg1-0ubuntu5.10
   libgs9                          9.55.0~dfsg1-0ubuntu5.10

Ubuntu 20.04 LTS
   ghostscript                     9.50~dfsg-5ubuntu4.14
   libgs9                          9.50~dfsg-5ubuntu4.14

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

References:
   https://ubuntu.com/security/notices/USN-7103-1
   CVE-2024-46951, CVE-2024-46952, CVE-2024-46953, CVE-2024-46954,
   CVE-2024-46955, CVE-2024-46956

Package Information:
   https://launchpad.net/ubuntu/+source/ghostscript/10.03.1~dfsg1-0ubuntu2.1
   https://launchpad.net/ubuntu/+source/ghostscript/10.02.1~dfsg1-0ubuntu7.4
   https://launchpad.net/ubuntu/+source/ghostscript/9.55.0~dfsg1-0ubuntu5.10
   https://launchpad.net/ubuntu/+source/ghostscript/9.50~dfsg-5ubuntu4.14

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