Out-of-bounds Read in Irssi
CVE-2017-5356
Irssi before 0.8.21 allows remote attackers to cause a denial of service (out-of-bounds read and crash) via a string containing a formatting sequence (%[) without a closing bracket (]).
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: 0.048 (91.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 92nd percentile — 91.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.048 · newest: 0.048 · change: 0.000
Affected products
- Irssi
- Debian Linux — versions 7.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- lists.debian.org/debian-lts-announce/2017/12/msg00022.html (mailing-list, Mailing List, Third Party Advisory)
- www.securityfocus.com/bid/96581 (VDB Entry, Third Party Advisory, vdb-entry)
- blog.fuzzing-project.org/55-Fuzzing-Irssi-with-Perl-Scripts.html (Technical Description, Exploit, Third Party Advisory)
- irssi.org/security/irssi_sa_2017_01.txt (Patch, Vendor Advisory)
- www.openwall.com/lists/oss-security/2017/01/12/8 (mailing-list, Mailing List, Third Party Advisory)
- www.openwall.com/lists/oss-security/2017/01/13/2 (mailing-list, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2017-5356?
- CVE-2017-5356 is a high-severity vulnerability in Irssi, classified under Out-of-bounds Read. CVSS score: 7.5/10. Published 2017-03-03.
- How severe is CVE-2017-5356?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2017-5356 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.