Use After Free in Irssi
CVE-2017-10966
An issue was discovered in Irssi before 1.0.4. While updating the internal nick list, Irssi could incorrectly use the GHashTable interface and free the nick while updating it. This would then result in use-after-free conditions on each access of the hash table.
Vulnerability class: Use-After-Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.029 (86.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 87th percentile — 86.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.029 · newest: 0.029 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.debian.org/security/2017/dsa-4016 (vendor-advisory)
- irssi.org/security/irssi_sa_2017_07.txt (Patch, Vendor Advisory)
- github.com/irssi/irssi/commit/5e26325317c72a04c1610ad952974e206384d291 (Patch, Third Party Advisory, Issue Tracking)
Frequently asked questions
- What is CVE-2017-10966?
- CVE-2017-10966 is a critical-severity vulnerability in Irssi, classified under Use After Free. CVSS score: 9.8/10. Published 2017-07-07.
- How severe is CVE-2017-10966?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2017-10966 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.