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amazonAmazonALAS2-2023-2261
HistorySep 13, 2023 - 11:44 p.m.

Medium: ghostscript

2023-09-1323:44:00
alas.aws.amazon.com
9
ghostscript
buffer overflow
remote code execution
pdf
cve-2020-16305

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

5.7 Medium

AI Score

Confidence

High

4.3 Medium

CVSS2

Access Vector

Access Complexity

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:N/I:N/A:P

0.003 Low

EPSS

Percentile

71.2%

Issue Overview:

A buffer overflow vulnerability in pcx_write_rle() in contrib/japanese/gdev10v.c of Artifex Software GhostScript v9.50 allows a remote attacker to cause a denial of service via a crafted PDF file. This is fixed in v9.51. (CVE-2020-16305)

Affected Packages:

ghostscript

Note:

This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.

Issue Correction:
Run yum update ghostscript to update your system.

New Packages:

aarch64:  
    ghostscript-9.25-5.amzn2.0.6.aarch64  
    libgs-9.25-5.amzn2.0.6.aarch64  
    libgs-devel-9.25-5.amzn2.0.6.aarch64  
    ghostscript-gtk-9.25-5.amzn2.0.6.aarch64  
    ghostscript-cups-9.25-5.amzn2.0.6.aarch64  
    ghostscript-debuginfo-9.25-5.amzn2.0.6.aarch64  
  
i686:  
    ghostscript-9.25-5.amzn2.0.6.i686  
    libgs-9.25-5.amzn2.0.6.i686  
    libgs-devel-9.25-5.amzn2.0.6.i686  
    ghostscript-gtk-9.25-5.amzn2.0.6.i686  
    ghostscript-cups-9.25-5.amzn2.0.6.i686  
    ghostscript-debuginfo-9.25-5.amzn2.0.6.i686  
  
noarch:  
    ghostscript-doc-9.25-5.amzn2.0.6.noarch  
  
src:  
    ghostscript-9.25-5.amzn2.0.6.src  
  
x86_64:  
    ghostscript-9.25-5.amzn2.0.6.x86_64  
    libgs-9.25-5.amzn2.0.6.x86_64  
    libgs-devel-9.25-5.amzn2.0.6.x86_64  
    ghostscript-gtk-9.25-5.amzn2.0.6.x86_64  
    ghostscript-cups-9.25-5.amzn2.0.6.x86_64  
    ghostscript-debuginfo-9.25-5.amzn2.0.6.x86_64  

Additional References

Red Hat: CVE-2020-16305

Mitre: CVE-2020-16305

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

5.7 Medium

AI Score

Confidence

High

4.3 Medium

CVSS2

Access Vector

Access Complexity

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:N/I:N/A:P

0.003 Low

EPSS

Percentile

71.2%