VulnerabilityModified
CVE-2017-7476
Gnulib before 2017-04-26 has a heap-based buffer overflow with the TZ environment variable.
CRITICAL 9.8EPSS 3.65%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.65%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.0
- 9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 3.65% probability · 90th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-119
- Affected
- gnulib/gnulib
- Source
- secalert@redhat.com
EPSS 3.7% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://git.savannah.gnu.org/gitweb/?p=gnulib.git%3Ba=commit%3Bh=94e01571507835ff59dd8ce2a0b56a4b566965a4
- http://www.securityfocus.com/bid/98098Third Party Advisory, VDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=1444774Exploit, Issue Tracking, Mitigation, Third Party Advisory, VDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=1445185Issue Tracking, Patch, Third Party Advisory, VDB Entry
- https://security-tracker.debian.org/tracker/CVE-2017-7476Third Party Advisory
- http://git.savannah.gnu.org/gitweb/?p=gnulib.git%3Ba=commit%3Bh=94e01571507835ff59dd8ce2a0b56a4b566965a4
- http://www.securityfocus.com/bid/98098Third Party Advisory, VDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=1444774Exploit, Issue Tracking, Mitigation, Third Party Advisory, VDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=1445185Issue Tracking, Patch, Third Party Advisory, VDB Entry
- https://security-tracker.debian.org/tracker/CVE-2017-7476Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.