{"id":"UBUNTU-CVE-2026-121942","details":"ZBar through 0.23.95 contains an out-of-bounds read vulnerability in _zbar_sq_decode() in zbar/sqcode.c that allows attackers to read heap memory outside the image buffer via crafted SQ code images. Attackers can supply an image with a skewed SQ code finder pattern near the edge, producing unchecked sample coordinates that crash the decoder and leak bytes into output.","modified":"2026-11-05T11:46:32.540827923Z","published":"2026-11-04T00:00:00Z","upstream":["CVE-2026-121942"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-121942"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-121942"},{"type":"REPORT","url":"github.com/mchehab/zbar"}],"affected":[{"package":{"name":"zbar","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/zbar?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.10+doc-9","0.10+doc-9build1"],"ecosystem_specific":{"binaries":[{"binary_name":"libbarcode-zbar-perl","binary_version":"0.10+doc-9build1"},{"binary_name":"libzbar0","binary_version":"0.10+doc-9build1"},{"binary_version":"0.10+doc-9build1","binary_name":"libzbargtk0"},{"binary_version":"0.10+doc-9build1","binary_name":"libzbarqt0"},{"binary_version":"0.10+doc-9build1","binary_name":"python-zbar"},{"binary_version":"0.10+doc-9build1","binary_name":"python-zbarpygtk"},{"binary_name":"zbar-tools","binary_version":"0.10+doc-9build1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-121942.json"}},{"package":{"name":"zbar","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/zbar?arch=source&distro=esm-apps%2Fxenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.10+doc-10build1","0.10+doc-10build2","0.10+doc-10ubuntu1","0.10+doc-10ubuntu1+esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"libbarcode-zbar-perl","binary_version":"0.10+doc-10ubuntu1+esm1"},{"binary_version":"0.10+doc-10ubuntu1+esm1","binary_name":"libzbar0"},{"binary_name":"libzbargtk0","binary_version":"0.10+doc-10ubuntu1+esm1"},{"binary_name":"libzbarqt0","binary_version":"0.10+doc-10ubuntu1+esm1"},{"binary_version":"0.10+doc-10ubuntu1+esm1","binary_name":"python-zbar"},{"binary_name":"python-zbarpygtk","binary_version":"0.10+doc-10ubuntu1+esm1"},{"binary_version":"0.10+doc-10ubuntu1+esm1","binary_name":"zbar-tools"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-121942.json"}},{"package":{"name":"zbar","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/zbar?arch=source&distro=esm-apps%2Fbionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.10+doc-10.1build2","0.10+doc-10.1ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"libbarcode-zbar-perl","binary_version":"0.10+doc-10.1ubuntu0.1~esm1"},{"binary_version":"0.10+doc-10.1ubuntu0.1~esm1","binary_name":"libzbar0"},{"binary_name":"libzbargtk0","binary_version":"0.10+doc-10.1ubuntu0.1~esm1"},{"binary_name":"libzbarqt0","binary_version":"0.10+doc-10.1ubuntu0.1~esm1"},{"binary_name":"python-zbar","binary_version":"0.10+doc-10.1ubuntu0.1~esm1"},{"binary_name":"python-zbarpygtk","binary_version":"0.10+doc-10.1ubuntu0.1~esm1"},{"binary_version":"0.10+doc-10.1ubuntu0.1~esm1","binary_name":"zbar-tools"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-121942.json"}},{"package":{"name":"zbar","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/zbar?arch=source&distro=esm-apps%2Ffocal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.23-1.1","0.23-1.2","0.23-1.3","0.23-1.3ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"libbarcode-zbar-perl","binary_version":"0.23-1.3ubuntu0.1~esm1"},{"binary_name":"libzbar0","binary_version":"0.23-1.3ubuntu0.1~esm1"},{"binary_name":"libzbargtk0","binary_version":"0.23-1.3ubuntu0.1~esm1"},{"binary_version":"0.23-1.3ubuntu0.1~esm1","binary_name":"libzbarqt0"},{"binary_name":"python3-zbar","binary_version":"0.23-1.3ubuntu0.1~esm1"},{"binary_name":"zbar-tools","binary_version":"0.23-1.3ubuntu0.1~esm1"},{"binary_name":"zbarcam-gtk","binary_version":"0.23-1.3ubuntu0.1~esm1"},{"binary_version":"0.23-1.3ubuntu0.1~esm1","binary_name":"zbarcam-qt"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-121942.json"}},{"package":{"name":"zbar","ecosystem":"Ubuntu:Pro:22.04:LTS","purl":"pkg:deb/ubuntu/zbar?arch=source&distro=esm-apps%2Fjammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.23.90-1","0.23.92-4","0.23.92-4build2","0.23.92-4ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"libbarcode-zbar-perl","binary_version":"0.23.92-4ubuntu0.1~esm1"},{"binary_version":"0.23.92-4ubuntu0.1~esm1","binary_name":"libzbar0"},{"binary_version":"0.23.92-4ubuntu0.1~esm1","binary_name":"libzbargtk0"},{"binary_name":"libzbarqt0","binary_version":"0.23.92-4ubuntu0.1~esm1"},{"binary_name":"python3-zbar","binary_version":"0.23.92-4ubuntu0.1~esm1"},{"binary_name":"zbar-tools","binary_version":"0.23.92-4ubuntu0.1~esm1"},{"binary_name":"zbarcam-gtk","binary_version":"0.23.92-4ubuntu0.1~esm1"}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