PT-2018-3468 · Tex Users+5 · Pdftex+9

Nick Roessler · Published 2018-09-19 · Updated 2024-06-15 · CVE-2018-17407

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions: TeX Live versions prior to 2018-09-21

Description: An issue in the t1 check unusual charstring function allows arbitrary code execution when a malicious font is loaded by tools such as pdflatex, pdftex, dvips, or luatex. The issue is related to a buffer overflow in the handling of Type 1 fonts.

Recommendations: For TeX Live versions prior to 2018-09-21, update to a version released after 2018-09-21 to resolve the issue. As a temporary workaround, consider restricting the use of the t1 check unusual charstring function or avoiding the loading of unknown or untrusted fonts with the vulnerable tools until a patch is applied.

Fix

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

ALT-PU-2018-2522

BDU:2020-01874

CESA-2020_1036

CVE-2018-17407

DLA-1514-1

DSA-4299-1

MGASA-2018-0397

OPENSUSE-SU-2018_2998-1

OPENSUSE-SU-2018_3213-1

OPENSUSE-SU-2024:11431-1

RHSA-2020:1036

RHSA-2020_1036

SUSE-SU-2018:3033-1

SUSE-SU-2018:3033-2

SUSE-SU-2018:3033-3

SUSE-SU-2018:3122-1

SUSE-SU-2018_3033-1

SUSE-SU-2018_3033-2

SUSE-SU-2018_3033-3

SUSE-SU-2018_3122-1

USN-3788-1

USN-3788-2

Affected Products

Alt Linux

Centos

Red Hat

Suse

Tex Live

Ubuntu

Dvips

Luatex

Pdflatex

Pdftex

References · 39

• https://github.com/TeX-Live/texlive-source/commit/6ed0077520e2b0da1fd060c7f88db7b2e6068e4c · Patch
• https://cve.org/CVERecord?id=CVE-2018-17407 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2018:3033-2 · Vendor Advisory
• https://bdu.fstec.ru/vul/2020-01874 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2018:3122-1 · Vendor Advisory
• https://debian.org/security/2018/dsa-4299 · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2020-1036.html · Vendor Advisory
• https://advisories.mageia.org/MGASA-2018-0397.html · Security Note
• https://ubuntu.com/security/notices/USN-3788-1 · Vendor Advisory
• https://osv.dev/vulnerability/USN-3788-1 · Vendor Advisory
• https://usn.ubuntu.com/3788-2 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2018:3033-3 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-3788-2 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-17407 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2018:3033-1 · Vendor Advisory