{"id":"CVE-2017-7476","url":"https://www.cyber-defence.io/tools/cve/CVE-2017-7476","generatedAt":"2026-10-29T00:41:41.528Z","title":"Gnulib before 2017-04-26 has a heap-based buffer overflow with the TZ environment variable.","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.","published":"2017-05-02T17:59:00.000Z","lastModified":"2026-06-17T01:24:25.000Z","status":"Modified","sourceIdentifier":"secalert@redhat.com","cvss":{"version":"3.0","score":9.8,"severity":"CRITICAL","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-119"],"affected":["gnulib/gnulib"],"epss":{"score":0.03654,"percentile":0.89553,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"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."},"changes":[],"references":[{"url":"http://git.savannah.gnu.org/gitweb/?p=gnulib.git%3Ba=commit%3Bh=94e01571507835ff59dd8ce2a0b56a4b566965a4","source":"secalert@redhat.com"},{"url":"http://www.securityfocus.com/bid/98098","tags":["Third Party Advisory","VDB Entry"],"source":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1444774","tags":["Exploit","Issue Tracking","Mitigation","Third Party Advisory","VDB Entry"],"source":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1445185","tags":["Issue Tracking","Patch","Third Party Advisory","VDB Entry"],"source":"secalert@redhat.com"},{"url":"https://security-tracker.debian.org/tracker/CVE-2017-7476","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://git.savannah.gnu.org/gitweb/?p=gnulib.git%3Ba=commit%3Bh=94e01571507835ff59dd8ce2a0b56a4b566965a4","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/98098","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1444774","tags":["Exploit","Issue Tracking","Mitigation","Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1445185","tags":["Issue Tracking","Patch","Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security-tracker.debian.org/tracker/CVE-2017-7476","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2017-7476","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}