libexpat up to 2.4.4 storeRawNames 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 labeled as critical has been found in libexpat up to 2.4.4. This affects the function storeRawNames. Such manipulation leads to integer overflow. This vulnerability is uniquely identified as CVE-2022-25315. No exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as critical, has been found in libexpat up to 2.4.4. Affected by this issue is the function storeRawNames. The manipulation with an unknown input leads to a integer overflow vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability.

The weakness was disclosed 02/18/2022. The advisory is available at github.com. This vulnerability is handled as CVE-2022-25315 since 02/18/2022. Technical details are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 236603 (Alibaba Cloud Linux 3 : 0021: expat (ALINUX3-SA-2022:0021)), 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 (236603). If you want to get best quality of vulnerability data, you may have to visit VulDB.

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: 236603
Nessus Name: Alibaba Cloud Linux 3 : 0021: expat (ALINUX3-SA-2022:0021)

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 🔍
05/20/2025 +1187 days 🔍

Sourcesinfo

Product: github.com

Advisory: github.com
Status: Confirmed

CVE: CVE-2022-25315 (🔍)
GCVE (CVE): GCVE-0-2022-25315
GCVE (VulDB): GCVE-100-193322

Entryinfo

Created: 02/18/2022 09:09
Updated: 05/20/2025 18:17
Changes: 02/18/2022 09:09 (39), 02/19/2022 14:48 (1), 05/20/2025 18:17 (16)
Complete: 🔍
Cache ID: 216::103

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

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