{"id":"UBUNTU-CVE-2026-111131","details":"libxmp through 4.7.4 contains an off-by-one stack out-of-bounds read vulnerability in the prowizard P61A depacker depack_p61a() in src/loaders/prowizard/p61a.c. Attackers can supply a crafted headerless P61A module with 31 samples and a 0xffe0 back-reference size word to leak stack memory into sample metadata or disrupt loading.","modified":"2026-10-17T12:59:52.249597043Z","published":"2026-10-16T00:00:00Z","upstream":["CVE-2026-111131"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-111131"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-111131"},{"type":"REPORT","url":"https://github.com/libxmp/libxmp"},{"type":"REPORT","url":"https://github.com/libxmp/libxmp/blob/5d4f6aa2c7dcdf8e9cd8129fe579d45b36a302da/src/loaders/prowizard/p61a.c#L110-L116"},{"type":"REPORT","url":"https://github.com/libxmp/libxmp/blob/5d4f6aa2c7dcdf8e9cd8129fe579d45b36a302da/src/loaders/prowizard/p61a.c#L638-L641"},{"type":"REPORT","url":"https://hackmd.io/@haind-pwn/libxmp-p61a-sample-backreference-oob-read"},{"type":"REPORT","url":"https://www.vulncheck.com/advisories/libxmp-through-4.7.4-stack-out-of-bounds-read-via-p61a-depacker"}],"affected":[{"package":{"name":"libxmp","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/libxmp?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.3.9-1","4.3.10-1","4.3.11-1"],"ecosystem_specific":{"binaries":[{"binary_version":"4.3.11-1","binary_name":"libxmp4"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-111131.json"}},{"package":{"name":"libxmp","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/libxmp?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.4.1-1"],"ecosystem_specific":{"binaries":[{"binary_name":"libxmp4","binary_version":"4.4.1-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-111131.json"}},{"package":{"name":"libxmp","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/libxmp?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.4.1-2"],"ecosystem_specific":{"binaries":[{"binary_version":"4.4.1-2","binary_name":"libxmp4"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-111131.json"}},{"package":{"name":"libxmp","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/libxmp?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.4.1-3","4.5.0-1"],"ecosystem_specific":{"binaries":[{"binary_name":"libxmp4","binary_version":"4.5.0-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-111131.json"}},{"package":{"name":"libxmp","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/libxmp?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.6.0-2"],"ecosystem_specific":{"binaries":[{"binary_name":"libxmp4","binary_version":"4.6.0-2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-111131.json"}},{"package":{"name":"libxmp","ecosystem":"Ubuntu:26.10","purl":"pkg:deb/ubuntu/libxmp?arch=source&distro=stonking"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.6.3-1","4.7.0-1","4.7.1-1","4.7.2-1"],"ecosystem_specific":{"binaries":[{"binary_name":"libxmp4","binary_version":"4.7.2-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-111131.json"}},{"package":{"name":"libxmp","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/libxmp?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.6.2-2","4.6.3-1"],"ecosystem_specific":{"binaries":[{"binary_version":"4.6.3-1","binary_name":"libxmp4"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-111131.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:L/I:N/A:H"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N"},{"type":"Ubuntu","score":"medium"}]}