Buffer overflow in Hexchat Project
CVE-2016-2233
Stack-based buffer overflow in the inbound_cap_ls function in common/inbound.c in HexChat 2.10.2 allows remote IRC servers to cause a denial of service (crash) via a large number of options in a CAP LS message.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.349 (98.4th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 98th percentile — 98.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.349 · newest: 0.349 · change: 0.000
Affected products
- Hexchat Project — versions 2.10.2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.exploit-db.com/exploits/39657/ (Exploit, VDB Entry, Third Party Advisory, exploit)
- www.securityfocus.com/bid/95920 (vdb-entry)
- packetstormsecurity.com/files/136563/Hexchat-IRC-Client-2.11.0-CAP-LS-Handling-… (Exploit, VDB Entry, Third Party Advisory)
Frequently asked questions
- What is CVE-2016-2233?
- CVE-2016-2233 is a high-severity vulnerability in Hexchat Project, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.5/10. Published 2017-01-18.
- How severe is CVE-2016-2233?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2016-2233 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.