Integer Overflow Vulnerability in Expat Library Affecting Various Products
CVE-2022-25314

7.5HIGH

Key Information:

Vendor
Libexpat Project
Status
Libexpat
Vendor
CVE Published:
18 February 2022

Badges

👾 Exploit Exists🟡 Public PoC

Summary

The Expat library, widely used for XML parsing, is susceptible to an integer overflow in the copyString function. This flaw could be exploited by attackers, potentially leading to unexpected behavior or denial of service in applications that utilize the vulnerable versions of this library. It is crucial for developers and system administrators to ensure their applications are running an updated version of Expat to mitigate this risk.

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

external_expact_AOSP10_r33_CVE-2022-25314
Created by ShaikUsaf

References

https://github.com/libexpat/libexpat/pull/560
x_refsource_MISC
http://www.openwall.com/lists/oss-security/2022/02/19/1
mailing-listx_refsource_MLIST
https://www.debian.org/security/2022/dsa-5085
vendor-advisoryx_refsource_DEBIAN

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

.