Vulnerability Name:

CVE-2020-27792 (CCN-234123)

Assigned:2019-11-06
Published:2019-11-06
Updated:2022-09-30
Summary: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.
CVSS v3 Severity:7.1 High (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H)
6.2 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): High
Availibility (A): High
5.5 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H)
4.8 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
CVSS v2 Severity:4.6 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:S/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
Vulnerability Type:CWE-119
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2020-27792

Source: CCN
Type: Bugzilla - Bug 701844
heap-buffer-overflow at devices/gdevlp8k.c:330 in lp8000_print_page

Source: MISC
Type: Exploit, Issue Tracking, Patch, Vendor Advisory
https://bugs.ghostscript.com/show_bug.cgi?id=701844

Source: XF
Type: UNKNOWN
artifex-cve202027792-dos(234123)

Source: CCN
Type: Ghostscript GIT Repository
Bug 701844: fixed output buffer size worst case in lp8000_print_page()

Source: MISC
Type: Patch, Vendor Advisory
https://git.ghostscript.com/?p=ghostpdl.git;a=commitdiff;h=4f6bc662909ab79e8fbe9822afb36e8a0eafc2b7

Source: MLIST
Type: Mailing List, Third Party Advisory
[debian-lts-announce] 20220903 [SECURITY] [DLA 3096-1] ghostscript security update

Vulnerable Configuration:Configuration 1:
  • cpe:/a:artifex:ghostscript:*:*:*:*:*:*:*:* (Version <= 9.50)

    • Configuration 2:
  • cpe:/o:debian:debian_linux:10.0:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:artifex:ghostscript:-:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    artifex ghostscript *
    debian debian linux 10.0
    artifex ghostscript -