Integer Overflow Vulnerability in Expat Library by libexpat
CVE-2022-25315

9.8CRITICAL

Key Information:

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

Badges

👾 Exploit Exists🟡 Public PoC

Summary

An integer overflow vulnerability exists in the Expat library, specifically in the storeRawNames function. This flaw could potentially allow an attacker to exploit memory allocation issues, leading to unexpected behavior or application crashes. Users of the affected Expat versions are advised to update to version 2.4.5 or later to mitigate any associated risks.

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-2022-25315
Created by ShaikUsaf

external_expat_v2.1.0_CVE-2022-25315
Created by hshivhare67

References

https://github.com/libexpat/libexpat/pull/559
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

EPSS Score

7% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
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

.