Buffer Overflow in libxml2 Affects Multiple Software Products from Various Vendors
CVE-2017-7376

9.8CRITICAL

Key Information:

Vendor

Xmlsoft

Status
Libxml2
Vendor
CVE Published:
19 February 2018

Badges

👾 Exploit Exists🟡 Public PoC🟣 EPSS 39%

What is CVE-2017-7376?

A buffer overflow vulnerability in libxml2 enables remote attackers to execute arbitrary code. This weakness arises from inadequate limits placed on port values during redirect handling. As a result, an attacker can exploit this flaw by manipulating inputs, potentially leading to severe security breaches across various applications relying on libxml2 for XML parsing and handling. It's crucial for users and administrators of affected products to apply the necessary patches to mitigate the risks associated with this vulnerability.

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.

libxml2-exploit
Created by brahmstaedt

References

https://source.android.com/security/bulletin/2017-06-01
x_refsource_CONFIRM
https://www.debian.org/security/2017/dsa-3952
vendor-advisoryx_refsource_DEBIAN
https://git.gnome.org/browse/libxml2/commit/?id=5dca9eea1...
x_refsource_CONFIRM

EPSS Score

39% 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

.