Integer overflow in GNU Libidn2
CVE-2017-14062
Integer overflow in the decode_digit function in puny_decode.c in Libidn2 before 2.0.4 allows remote attackers to cause a denial of service or possibly have unspecified other impact.
Vulnerability class: Integer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.039 (89.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 90th percentile — 89.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.039 · newest: 0.039 · change: 0.000
Affected products
- GNU Libidn2
- Debian Linux — versions 8.0, 9.0, 10.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.debian.org/security/2017/dsa-3988 (vendor-advisory, Third Party Advisory)
- gitlab.com/libidn/libidn2/blob/master/NEWS (Third Party Advisory, Release Notes)
- gitlab.com/libidn/libidn2/commit/3284eb342cd0ed1a18786e3fcdf0cdd7e76676bd (Patch, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2018/07/msg00040.html (mailing-list, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2017-14062?
- CVE-2017-14062 is a critical-severity vulnerability in GNU Libidn2, classified under Integer Overflow or Wraparound. CVSS score: 9.8/10. Published 2017-08-31.
- How severe is CVE-2017-14062?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2017-14062 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.