Bug 1222127 (CVE-2023-46051)

Summary:	VUL-0: CVE-2023-46051: texlive: NULL pointer dereference in texk/web2c/pdftexdir/tounicode.c
Product:	[Novell Products] SUSE Security Incidents	Reporter:	SMASH SMASH <smash_bz>
Component:	Incidents	Assignee:	Security Team bot <security-team>
Status:	NEW ---	QA Contact:	Security Team bot <security-team>
Severity:	Minor
Priority:	P3 - Medium	CC:	carlos.lopez, werner
Version:	unspecified
Target Milestone:	---
Hardware:	Other
OS:	Other
URL:	https://smash.suse.de/issue/399124/
Whiteboard:	CVSSv3.1:SUSE:CVE-2023-46051:3.3:(AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L)
Found By:	Security Response Team	Services Priority:
Business Priority:		Blocker:	---
Marketing QA Status:	---	IT Deployment:	---
Attachments:	source-CVE-2023-46051.patch

Description SMASH SMASH 2024-03-28 12:18:22 UTC

TeX Live 944e257 allows a NULL pointer dereference in texk/web2c/pdftexdir/tounicode.c. NOTE: this is disputed because it should be categorized as a usability problem.

References:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2023-46051
https://www.cve.org/CVERecord?id=CVE-2023-46051
http://seclists.org/fulldisclosure/2024/Jan/68
https://tug.org/pipermail/tex-live/2023-August/049406.html

Comment 1 Dr. Werner Fink 2024-03-28 13:29:08 UTC

https://tug.org/pipermail/tex-live/2023-August/049415.html

Comment 2 Dr. Werner Fink 2024-03-28 14:04:55 UTC

TeXLive 2024 is save

Comment 3 Dr. Werner Fink 2024-04-02 13:07:06 UTC

Created attachment 874000 [details]
source-CVE-2023-46051.patch

The only tounicode.c showing the vulnerability belongs to pdftex

Comment 4 Dr. Werner Fink 2024-04-03 13:49:06 UTC

Patch does not apply to TeXLive 2013 of SLE-12 as there is no such code

Comment 7 Maintenance Automation 2024-04-16 12:30:05 UTC

SUSE-SU-2024:1310-1: An update that solves two vulnerabilities can now be installed.

Category: security (low)
Bug References: 1222126, 1222127
CVE References: CVE-2023-46048, CVE-2023-46051
Maintenance Incident: [SUSE:Maintenance:33218](https://smelt.suse.de/incident/33218/)
Sources used:
openSUSE Leap 15.4 (src):
 texlive-2021.20210325-150400.31.6.4
openSUSE Leap 15.5 (src):
 texlive-2021.20210325-150400.31.6.4
Basesystem Module 15-SP5 (src):
 texlive-2021.20210325-150400.31.6.4
Desktop Applications Module 15-SP5 (src):
 texlive-2021.20210325-150400.31.6.4

NOTE: This line indicates an update has been released for the listed product(s). At times this might be only a partial fix. If you have questions please reach out to maintenance coordination.