{"id":"UBUNTU-CVE-2026-110654","details":"libzvbi through 0.2.45 contains an out-of-bounds write vulnerability in the Teletext decoder that allows attackers to corrupt memory by supplying unvalidated DRCS pixel-mode values in X/28/3 packets. Attackers can send a crafted Teletext stream decoded via vbi_decode with every slot set to DRCS_MODE_6_5_4, causing convert_drcs to overflow chars[48][60] and crash the application.","modified":"2026-10-17T12:59:51.801154974Z","published":"2026-10-15T00:00:00Z","upstream":["CVE-2026-110654"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-110654"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-110654"},{"type":"REPORT","url":"https://github.com/zapping-vbi/zvbi"},{"type":"REPORT","url":"https://github.com/zapping-vbi/zvbi/blob/d3a5ee9f2b047bf16cd1ee5ccf6ec05ee75409d0/src/packet.c#L447"},{"type":"REPORT","url":"https://hackmd.io/@haind-pwn/zvbi-teletext-drcs-mode-oob-write"},{"type":"REPORT","url":"https://www.vulncheck.com/advisories/libzvbi-through-0.2.45-out-of-bounds-write-via-teletext-drcs-convert-drcs"}],"affected":[{"package":{"name":"zvbi","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/zvbi?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.2.33-7","0.2.35-2"],"ecosystem_specific":{"binaries":[{"binary_version":"0.2.35-2","binary_name":"libzvbi-common"},{"binary_name":"libzvbi0","binary_version":"0.2.35-2"},{"binary_name":"zvbi","binary_version":"0.2.35-2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-110654.json"}},{"package":{"name":"zvbi","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/zvbi?arch=source&distro=esm-apps%2Fxenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.2.35-9","0.2.35-10","0.2.35-10ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_version":"0.2.35-10ubuntu0.1~esm1","binary_name":"libzvbi-common"},{"binary_name":"libzvbi0","binary_version":"0.2.35-10ubuntu0.1~esm1"},{"binary_name":"zvbi","binary_version":"0.2.35-10ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-110654.json"}},{"package":{"name":"zvbi","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/zvbi?arch=source&distro=esm-apps%2Fbionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.2.35-13","0.2.35-13ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_version":"0.2.35-13ubuntu0.1~esm1","binary_name":"libzvbi-common"},{"binary_version":"0.2.35-13ubuntu0.1~esm1","binary_name":"libzvbi0"},{"binary_name":"zvbi","binary_version":"0.2.35-13ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-110654.json"}},{"package":{"name":"zvbi","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/zvbi?arch=source&distro=esm-apps%2Ffocal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.2.35-16","0.2.35-17","0.2.35-17ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"libzvbi-common","binary_version":"0.2.35-17ubuntu0.1~esm1"},{"binary_name":"libzvbi0","binary_version":"0.2.35-17ubuntu0.1~esm1"},{"binary_name":"zvbi","binary_version":"0.2.35-17ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-110654.json"}},{"package":{"name":"zvbi","ecosystem":"Ubuntu:Pro:22.04:LTS","purl":"pkg:deb/ubuntu/zvbi?arch=source&distro=esm-apps%2Fjammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.2.35-18","0.2.35-19","0.2.35-19ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"libzvbi-common","binary_version":"0.2.35-19ubuntu0.1~esm1"},{"binary_version":"0.2.35-19ubuntu0.1~esm1","binary_name":"libzvbi0"},{"binary_version":"0.2.35-19ubuntu0.1~esm1","binary_name":"zvbi"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-110654.json"}},{"package":{"name":"zvbi","ecosystem":"Ubuntu:Pro:24.04:LTS","purl":"pkg:deb/ubuntu/zvbi?arch=source&distro=esm-apps%2Fnoble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.2.41-2","0.2.42-1","0.2.42-1.1","0.2.42-1.2","0.2.42-2","0.2.42-2ubuntu0.24.04.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"libzvbi-common","binary_version":"0.2.42-2ubuntu0.24.04.1~esm1"},{"binary_name":"libzvbi0t64","binary_version":"0.2.42-2ubuntu0.24.04.1~esm1"},{"binary_name":"zvbi","binary_version":"0.2.42-2ubuntu0.24.04.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-110654.json"}},{"package":{"name":"zvbi","ecosystem":"Ubuntu:26.10","purl":"pkg:deb/ubuntu/zvbi?arch=source&distro=stonking"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.2.44-1ubuntu2","0.2.44-2ubuntu1","0.2.45-1"],"ecosystem_specific":{"binaries":[{"binary_name":"libzvbi-common","binary_version":"0.2.45-1"},{"binary_version":"0.2.45-1","binary_name":"libzvbi0t64"},{"binary_version":"0.2.45-1","binary_name":"zvbi"}]},"database_specific":{"source":"https://github.com/canonical/ubu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