7.8

CVE-2020-16303

Exploit
A use-after-free vulnerability in xps_finish_image_path() in devices/vector/gdevxps.c of Artifex Software GhostScript v9.50 allows a remote attacker to escalate privileges via a crafted PDF file. This is fixed in v9.51.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Artifex ≫ Ghostscript Version 9.50
Debian ≫ Debian Linux Version 9.0
Debian ≫ Debian Linux Version 10.0
Canonical ≫ Ubuntu Linux Version 16.04 SwEdition esm
Canonical ≫ Ubuntu Linux Version 18.04 SwEdition lts
Canonical ≫ Ubuntu Linux Version 20.04 SwEdition lts
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 1.79% 0.756
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NIST 6.8 8.6 6.4
AV:N/AC:M/Au:N/C:P/I:P/A:P
CWE-416 Use After Free

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

https://security.gentoo.org/glsa/202008-20
Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/08/msg00032.html
Third Party Advisory
Mailing List
https://usn.ubuntu.com/4469-1/
Third Party Advisory
https://www.debian.org/security/2020/dsa-4748
Third Party Advisory
https://bugs.ghostscript.com/show_bug.cgi?id=701818
Vendor Advisory
Exploit
Issue Tracking
https://git.ghostscript.com/?p=ghostpdl.git%3Ba=commitdiff%3Bh=94d8955cb77