CVE-2020-27792: Ghostscript: heap buffer over write vulnerability in ghostscript's lp8000_print_page() in gdevlp8k.c
First published: Fri Aug 19 2022(Updated: )
A heap-based buffer over write vulnerability was found in GhostScript's lp8000_print_page() function in gdevlp8k.c file. An attacker could trick a user to open a crafted PDF file, triggering the heap buffer overflow that could lead to memory corruption or a denial of service.
Credit: secalert@redhat.com secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Artifex Ghostscript | <=9.50 | |
| Debian Debian Linux | =10.0 | |
| redhat/ghostscript | <9.27 | 9.27 |
Remedy
https://git.ghostscript.com/?p=ghostpdl.git;a=commitdiff;h=4f6bc662909ab79e8fbe9822afb36e8a0eafc2b7
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Reference Links
- https://bugs.ghostscript.com/show_bug.cgi?id=701844
- https://git.ghostscript.com/?p=ghostpdl.git;a=commitdiff;h=4f6bc662909ab79e8fbe9822afb36e8a0eafc2b7
- https://lists.debian.org/debian-lts-announce/2022/09/msg00005.html
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2250779
- https://bugzilla.redhat.com/show_bug.cgi?id=2247179
- https://access.redhat.com/security/cve/CVE-2020-27792
Frequently Asked Questions
What is the vulnerability ID for this vulnerability?
The vulnerability ID for this vulnerability is CVE-2020-27792.
What is the affected software?
The affected software is Artifex Ghostscript version up to and including 9.50 and Debian Debian Linux version 10.0.
What is the severity of CVE-2020-27792?
The severity of CVE-2020-27792 is high with a CVSS severity score of 7.1.
How can an attacker exploit this vulnerability?
An attacker can exploit this vulnerability by tricking a user into opening a crafted PDF file, which triggers a heap buffer overflow.
Are there any references for this vulnerability?
Yes, the references for CVE-2020-27792 include: [Bugzilla report](https://bugs.ghostscript.com/show_bug.cgi?id=701844), [Commit reference](https://git.ghostscript.com/?p=ghostpdl.git;a=commitdiff;h=4f6bc662909ab79e8fbe9822afb36e8a0eafc2b7), [Debian advisory](https://lists.debian.org/debian-lts-announce/2022/09/msg00005.html).
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