PT-2017-8017 · Hexchat · Hexchat

Pizzahathacker · Published 2017-01-18 · Updated 2017-02-03 · CVE-2016-2233

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions HexChat version 2.10.2

Description The issue is a stack-based buffer overflow in the inbound cap ls function, which can be triggered by remote IRC servers sending a large number of options in a CAP LS message, leading to a denial of service (crash).

Recommendations For HexChat version 2.10.2, consider restricting the handling of CAP LS messages from remote IRC servers until a patch is available. As a temporary workaround, limiting the number of options accepted in a CAP LS message may help mitigate the risk of exploitation.

Exploit

Fix

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

CVE-2016-2233

Affected Products

Hexchat

References · 10

• 🔥 https://exploit-db.com/exploits/39657 · Exploit
• 🔥 http://packetstormsecurity.com/files/136563/Hexchat-IRC-Client-2.11.0-CAP-LS-Handling-Buffer-Overflow.html · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2016-2233 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2016-2233 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-2233 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2016-2233 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2016-2233 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2016-2233 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2016-2233 · Security Note
• http://securityfocus.com/bid/95920 · Note