{"id":"UBUNTU-CVE-2026-123269","details":"A vulnerability was detected in libyal libvmdk. Affected by this vulnerability is the function libvmdk_descriptor_file_read_header of the file libvmdk/libvmdk_descriptor_file.c of the component Descriptor File Parser. The manipulation results in out-of-bounds read. The attack must be initiated from a local position. The exploit is now public and may be used. The patch is identified as 175d3fc0a0b961f362f16e7560a6169d7213e16b. It is best practice to apply a patch to resolve this issue.","modified":"2026-11-07T01:46:30.663852352Z","published":"2026-11-06T00:00:00Z","upstream":["CVE-2026-123269"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-123269"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-123269"},{"type":"REPORT","url":"https://github.com/libyal/libvmdk/issues/41"},{"type":"REPORT","url":"https://github.com/libyal/libvmdk/"},{"type":"REPORT","url":"https://github.com/libyal/libvmdk/commit/175d3fc0a0b961f362f16e7560a6169d7213e16b"},{"type":"REPORT","url":"https://github.com/user-attachments/files/33394231/03_integer_underflow_poc.zip"},{"type":"REPORT","url":"https://vuldb.com/cve/CVE-2026-123269"},{"type":"REPORT","url":"https://vuldb.com/submit/1032842"},{"type":"REPORT","url":"https://vuldb.com/vuln/431575"},{"type":"REPORT","url":"https://vuldb.com/vuln/431575/cti"}],"affected":[{"package":{"name":"libvmdk","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/libvmdk?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["20150516-2","20160108-1","20160119-1","20160119-2"],"ecosystem_specific":{"binaries":[{"binary_version":"20160119-2","binary_name":"libvmdk-utils"},{"binary_name":"libvmdk1","binary_version":"20160119-2"},{"binary_version":"20160119-2","binary_name":"python-libvmdk"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-123269.json"}},{"package":{"name":"libvmdk","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/libvmdk?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["20170226-1build1","20170226-3"],"ecosystem_specific":{"binaries":[{"binary_name":"libvmdk-utils","binary_version":"20170226-3"},{"binary_name":"libvmdk1","binary_version":"20170226-3"},{"binary_name":"python-libvmdk","binary_version":"20170226-3"},{"binary_name":"python3-libvmdk","binary_version":"20170226-3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-123269.json"}},{"package":{"name":"libvmdk","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/libvmdk?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["20181227-1","20181227-1build1","20181227-1ubuntu1","20181227-1.1"],"ecosystem_specific":{"binaries":[{"binary_name":"libvmdk-utils","binary_version":"20181227-1.1"},{"binary_version":"20181227-1.1","binary_name":"libvmdk1"},{"binary_name":"python3-libvmdk","binary_version":"20181227-1.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-123269.json"}},{"package":{"name":"libvmdk","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/libvmdk?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["20200926-2","20200926-2build1"],"ecosystem_specific":{"binaries":[{"binary_name":"libvmdk-utils","binary_version":"20200926-2build1"},{"binary_name":"libvmdk1","binary_version":"20200926-2build1"},{"binary_name":"python3-libvmdk","binary_version":"20200926-2build1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-123269.json"}},{"package":{"name":"libvmdk","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/libvmdk?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["20200926-2build2","20200926-2build3","20200926-2build4","20200926-2build5"],"ecosystem_specific":{"binaries":[{"binary_name":"libvmdk-utils","binary_version":"20200926-2build5"},{"binary_version":"20200926-2build5","binary_name":"libvmdk1"},{"binary_name":"python3-libvmdk","binary_version":"20200926-2build5"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-123269.json"}},{"package":{"name":"libvmdk","ecosystem":"Ubuntu:26.10","purl":"pkg:deb/ubuntu/libvmdk?arch=source&distro=stonking"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["20240510-2build1"],"ecosystem_specific":{"binaries":[{"binary_version":"20240510-2build1","binary_name":"libvmdk-utils"},{"binary_version":"20240510-2build1","binary_name":"libvmdk1"},{"binary_name":"python3-libvmdk","binary_version":"20240510-2build1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-123269.json"}},{"package":{"name":"libvmdk","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/libvmdk?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["20240510-1build1","20240510-2","20240510-2build1"],"ecosystem_specific":{"binaries":[{"binary_name":"libvmdk-utils","binary_version":"20240510-2build1"},{"binary_name":"libvmdk1","binary_version":"20240510-2build1"},{"binary_vers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