jbig2enc 0.28 src/jbig2enc.cc jbig2enc_auto_threshold_using_hash use after free

HistoryDiffrelatejsonxmlCTI

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.
5.5	$0-$5k	0.00

Summaryinfo

A vulnerability was found in jbig2enc 0.28. It has been classified as critical. The impacted element is the function jbig2enc_auto_threshold_using_hash of the file src/jbig2enc.cc. The manipulation leads to use after free. This vulnerability is listed as CVE-2023-46362. There is no available exploit.

Detailsinfo

A vulnerability was found in jbig2enc 0.28 and classified as critical. This issue affects the function jbig2enc_auto_threshold_using_hash of the file src/jbig2enc.cc. The manipulation with an unknown input leads to a use after free vulnerability. Using CWE to declare the problem leads to CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

jbig2enc v0.28 was discovered to contain a heap-use-after-free via jbig2enc_auto_threshold_using_hash in src/jbig2enc.cc.

The weakness was presented 11/08/2023 as 84. It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2023-46362 since 10/23/2023. Technical details of the vulnerability are known, but there is no available exploit.

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

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2023-50582). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Name

jbig2enc

Version

0.28

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.5

VulDB Base Score: 5.5
VulDB Temp Score: 5.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
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

10/23/2023 🔍
11/08/2023 +16 days 🔍
11/08/2023 +0 days 🔍
02/15/2026 +830 days 🔍

Sourcesinfo

Advisory: 84
Status: Confirmed

CVE: CVE-2023-46362 (🔍)
GCVE (CVE): GCVE-0-2023-46362
GCVE (VulDB): GCVE-100-244823
EUVD: 🔍

Entryinfo

Created: 11/08/2023 22:36
Updated: 02/15/2026 16:22
Changes: 11/08/2023 22:36 (38), 12/05/2023 13:06 (9), 02/15/2026 16:22 (16)
Complete: 🔍
Cache ID: 216::103