Xpdf 4.04 gmem.cc gmalloc buffer overflow

CVSS Meta Temp Score
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CTI Interest Score
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5.4$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in Xpdf 4.04. Affected by this issue is the function gmalloc of the file gmem.cc. Executing a manipulation can lead to buffer overflow. This vulnerability is handled as CVE-2023-26936. There is not any exploit available.

Detailsinfo

A vulnerability was found in Xpdf 4.04 (Document Reader Software). It has been declared as critical. This vulnerability affects the function gmalloc of the file gmem.cc. The manipulation with an unknown input leads to a buffer overflow vulnerability. The CWE definition for the vulnerability is CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Buffer Overflow vulnerability found in XPDF v.4.04 allows an attacker to cause a Denial of Service via gmalloc in gmem.cc

The weakness was released 04/27/2023. The advisory is shared for download at gist.github.com. This vulnerability was named CVE-2023-26936 since 02/27/2023. There are known technical details, but no exploit is available.

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-2023-30727). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.4

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Buffer overflow
CWE: CWE-120 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔍
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

02/27/2023 🔍
04/26/2023 +58 days 🔍
04/27/2023 +0 days 🔍
11/12/2025 +930 days 🔍

Sourcesinfo

Advisory: gist.github.com
Status: Not defined

CVE: CVE-2023-26936 (🔍)
GCVE (CVE): GCVE-0-2023-26936
GCVE (VulDB): GCVE-100-227536
EUVD: 🔍

Entryinfo

Created: 04/27/2023 01:39
Updated: 11/12/2025 19:06
Changes: 04/27/2023 01:39 (39), 05/20/2023 16:50 (10), 11/12/2025 19:06 (16)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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