Buffer overflow in Gnulib
CVE-2017-7476
Gnulib before 2017-04-26 has a heap-based buffer overflow with the TZ environment variable. The error is in the save_abbr function in time_rz.c.
Vulnerability class: Buffer Overflow
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: 0.037 (89.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 89th percentile — 89.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.037 · newest: 0.037 · change: 0.000
Affected products
- Gnulib
- Gnulib Before 2017-04-26 — versions Gnulib before 2017-04-26
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security-tracker.debian.org/tracker/CVE-2017-7476 (Third Party Advisory)
- bugzilla.redhat.com/show_bug.cgi (Patch, VDB Entry, Third Party Advisory, Issue Tracking)
- bugzilla.redhat.com/show_bug.cgi (Exploit, VDB Entry, Third Party Advisory, Mitigation, Issue Tracking)
- git.savannah.gnu.org/gitweb/
- www.securityfocus.com/bid/98098 (VDB Entry, Third Party Advisory, vdb-entry)
Frequently asked questions
- What is CVE-2017-7476?
- CVE-2017-7476 is a critical-severity vulnerability in Gnulib, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 9.8/10. Published 2017-05-02.
- How severe is CVE-2017-7476?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2017-7476 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.