libexpat up to 2.4.4 copyString integer overflow

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in libexpat up to 2.4.4. The impacted element is the function copyString. This manipulation causes integer overflow. This vulnerability is handled as CVE-2022-25314. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in libexpat up to 2.4.4. Affected by this vulnerability is the function copyString. The manipulation with an unknown input leads to a integer overflow vulnerability. The CWE definition for the vulnerability is CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was released 02/18/2022. The advisory is shared at github.com. This vulnerability is known as CVE-2022-25314 since 02/18/2022. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 236567 (Alibaba Cloud Linux 3 : 0183: mingw-expat (ALINUX3-SA-2022:0183)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 2.4.5 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at Tenable (236567). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

Version

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.3

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

CVSSv2info

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

Exploitinginfo

Class: Integer overflow
CWE: CWE-190 / CWE-189
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 236567
Nessus Name: Alibaba Cloud Linux 3 : 0183: mingw-expat (ALINUX3-SA-2022:0183)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: libexpat 2.4.5
Patch: github.com

Timelineinfo

02/18/2022 🔍
02/18/2022 +0 days 🔍
02/18/2022 +0 days 🔍
05/21/2025 +1188 days 🔍

Sourcesinfo

Product: github.com

Advisory: github.com
Status: Confirmed

CVE: CVE-2022-25314 (🔍)
GCVE (CVE): GCVE-0-2022-25314
GCVE (VulDB): GCVE-100-193321

Entryinfo

Created: 02/18/2022 09:08
Updated: 05/21/2025 21:09
Changes: 02/18/2022 09:08 (39), 02/19/2022 14:46 (1), 05/21/2025 21:09 (16)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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