{"id":"UBUNTU-CVE-2026-123976","details":"EDFbrowser before 2.16 contains an out-of-bounds write vulnerability in check_edf_file() that allows attackers to overflow the 256-element annot_ch array by supplying excessive annotation signals. Attackers can craft an EDF+ or BDF+ file with more than 256 annotation signals to overwrite edfhdrblock members, including the signal parameter pointer, crashing the application when opened.","modified":"2026-11-10T02:50:22.195912121Z","published":"2026-11-09T00:00:00Z","upstream":["CVE-2026-123976"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-123976"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-123976"},{"type":"REPORT","url":"https://gitlab.com/Teuniz/EDFbrowser/-/commit/f64cec4a22af34adb7bbdf5fec12cb3a880ddc5a"},{"type":"REPORT","url":"https://gitlab.com/Teuniz/EDFbrowser"},{"type":"REPORT","url":"https://gitlab.com/Teuniz/EDFbrowser/-/blob/v2.15/check_edf_file.c#L686-L708"},{"type":"REPORT","url":"https://gitlab.com/Teuniz/EDFbrowser/-/blob/v2.15/global.h#L250"},{"type":"REPORT","url":"https://gitlab.com/Teuniz/EDFbrowser/-/commit/f64cec4a22af34adb7bbdf5fec12cb3a880ddc5a"},{"type":"REPORT","url":"https://gitlab.com/Teuniz/EDFbrowser/-/tags/v2.16"},{"type":"REPORT","url":"https://www.vulncheck.com/advisories/edfbrowser-before-2.16-out-of-bounds-write-via-check-edf-file-annotation-signals"}],"affected":[{"package":{"name":"edfbrowser","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/edfbrowser?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.56-1","1.57-1"],"ecosystem_specific":{"binaries":[{"binary_name":"edfbrowser","binary_version":"1.57-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-123976.json"}},{"package":{"name":"edfbrowser","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/edfbrowser?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.58-1","1.60-1","1.61+dfsg-1","1.62+dfsg-1"],"ecosystem_specific":{"binaries":[{"binary_version":"1.62+dfsg-1","binary_name":"edfbrowser"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-123976.json"}},{"package":{"name":"edfbrowser","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/edfbrowser?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.68+dfsg-1","1.70+dfsg-1","1.71+dfsg-1","1.72+dfsg-1"],"ecosystem_specific":{"binaries":[{"binary_version":"1.72+dfsg-1","binary_name":"edfbrowser"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-123976.json"}},{"package":{"name":"edfbrowser","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/edfbrowser?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.81+dfsg-1","1.86+dfsg-1","1.87+dfsg-1","1.88+dfsg-1","1.90+dfsg-1","1.91+dfsg-1"],"ecosystem_specific":{"binaries":[{"binary_version":"1.91+dfsg-1","binary_name":"edfbrowser"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-123976.json"}},{"package":{"name":"edfbrowser","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/edfbrowser?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.04+dfsg-1","2.05+dfsg-1","2.05+dfsg-2","2.06+dfsg-1","2.06+dfsg-1build1","2.06+dfsg-1build2"],"ecosystem_specific":{"binaries":[{"binary_name":"edfbrowser","binary_version":"2.06+dfsg-1build2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-123976.json"}},{"package":{"name":"edfbrowser","ecosystem":"Ubuntu:26.10","purl":"pkg:deb/ubuntu/edfbrowser?arch=source&distro=stonking"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.14+dfsg-1"],"ecosystem_specific":{"binaries":[{"binary_name":"edfbrowser","binary_version":"2.14+dfsg-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-123976.json"}},{"package":{"name":"edfbrowser","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/edfbrowser?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.12+dfsg-1","2.13+dfsg-1","2.14+dfsg-1"],"ecosystem_specific":{"binaries":[{"binary_name":"edfbrowser","binary_version":"2.14+dfsg-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-123976.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"},{"type":"Ubuntu","score":"medium"}]}