Buffer overflow in GNU Gnulib
CVE-2018-17942
The convert_to_decimal function in vasnprintf.c in Gnulib before 2018-09-23 has a heap-based buffer overflow because memory is not allocated for a trailing '\0' character during %f processing.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.025 (84.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 84th percentile — 84.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.025 · newest: 0.025 · change: 0.000
Affected products
Weakness classification (CWE)
References
- github.com/coreutils/gnulib/commit/278b4175c9d7dd47c1a3071554aac02add3b3c35 (Patch, Third Party Advisory)
- savannah.gnu.org/bugs/ (Exploit, Vendor Advisory)
- lists.gnu.org/archive/html/bug-gnulib/2018-09/msg00107.html (Exploit, Mailing List, Vendor Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
Frequently asked questions
- What is CVE-2018-17942?
- CVE-2018-17942 is a high-severity vulnerability in GNU Gnulib, classified under Out-of-bounds Write. CVSS score: 8.8/10. Published 2018-10-03.
- How severe is CVE-2018-17942?
- High severity. CVSS v3 base score is 8.8 out of 10.