VDB-258106 · CVE-2023-46051 · GCVE-0-2023-46051

TeX Live 944e257 tounicode.c null pointer dereference ⚔ [Disputed]

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
3.4	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in TeX Live 944e257. This affects an unknown part of the file texk/web2c/pdftexdir/tounicode.c. Executing a manipulation can lead to null pointer dereference. This vulnerability is handled as CVE-2023-46051. There is not any exploit available. The existence of this vulnerability is still disputed at present.

Detailsinfo

A vulnerability has been found in TeX Live 944e257 and classified as problematic. This vulnerability affects some unknown functionality of the file texk/web2c/pdftexdir/tounicode.c. The manipulation with an unknown input leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. As an impact it is known to affect availability. CVE summarizes:

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.

The advisory is available at tug.org. This vulnerability was named CVE-2023-46051 since 10/16/2023. Technical details are known, but there is no available exploit.

The real existence of this vulnerability is still doubted at the moment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Name

TeX Live

Version

944e257

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.4
VulDB Meta Temp Score: 3.4

VulDB Base Score: 3.5
VulDB Temp Score: 3.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 3.3
CNA Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

10/16/2023 🔍
03/27/2024 +163 days 🔍
03/27/2024 +0 days 🔍
11/29/2024 +247 days 🔍

Sourcesinfo

Advisory: tug.org
Status: Not defined
Disputed: 🔍

CVE: CVE-2023-46051 (🔍)
GCVE (CVE): GCVE-0-2023-46051
GCVE (VulDB): GCVE-100-258106

Entryinfo

Created: 03/27/2024 07:01
Updated: 11/29/2024 21:01
Changes: 03/27/2024 07:01 (52), 08/02/2024 18:37 (1), 11/29/2024 21:01 (12)
Complete: 🔍
Cache ID: 216::103