Integer Overflow Vulnerability in Libiberty Affects GCC Compiler
CVE-2016-2226

7.8HIGH

Key Information:

Vendor

Gnu
Status
Libiberty
Vendor
CVE Published:
24 February 2017

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2016-2226?

The vulnerability resides in the string_appends function within the libiberty component of GCC, where improper handling of integer variables can lead to an overflow. Attackers can exploit this by supplying a specially crafted executable that triggers a buffer overflow, allowing arbitrary code execution. This could lead to severe consequences including unauthorized access to system resources.

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.

CVE-2016-2226 - Proof of Concept

References

https://www.exploit-db.com/exploits/42386/
exploitx_refsource_EXPLOIT-DB
http://www.securityfocus.com/bid/90103
vdb-entryx_refsource_BID
http://www.openwall.com/lists/oss-security/2016/05/05/5
mailing-listx_refsource_MLIST

EPSS Score

9% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

.