{"id":"DEBIAN-CVE-2026-111137","details":"libsmi through 0.5.0 contains an out-of-bounds write vulnerability in smiValueAsString() in lib/smi.c that allows attackers to overflow a fixed 1024-byte static buffer through hex rendering of OCTET STRING values. Attackers can supply a crafted MIB with an OCTET STRING DEFVAL of 512 or more octets and a leading 0x00 byte to corrupt adjacent library globals and crash smidump or other consumers.","modified":"2026-10-16T06:00:07.870782438Z","published":"2026-10-15T19:17:27.690Z","upstream":["CVE-2026-111137"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-111137"}],"affected":[{"package":{"name":"libsmi","ecosystem":"Debian:12","purl":"pkg:deb/debian/libsmi?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.4.8+dfsg2-16","0.4.8+dfsg2-16.1","0.4.8+dfsg2-16.1~exp1","0.4.8+dfsg2-17","0.4.8+dfsg2-18"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-111137.json"}},{"package":{"name":"libsmi","ecosystem":"Debian:13","purl":"pkg:deb/debian/libsmi?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.4.8+dfsg2-17","0.4.8+dfsg2-18"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-111137.json"}},{"package":{"name":"libsmi","ecosystem":"Debian:14","purl":"pkg:deb/debian/libsmi?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.4.8+dfsg2-17","0.4.8+dfsg2-18"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-111137.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H"}]}