{"id":"UBUNTU-CVE-2021-4048","details":"An out-of-bounds read flaw was found in the CLARRV, DLARRV, SLARRV, and ZLARRV functions in lapack through version 3.10.0, as also used in OpenBLAS before version 0.3.18. Specially crafted inputs passed to these functions could cause an application using lapack to crash or possibly disclose portions of its memory.","modified":"2026-04-22T14:58:19.918411Z","published":"2021-12-08T22:15:00Z","upstream":["CVE-2021-4048"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-4048"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2021-4048"}],"affected":[{"package":{"name":"openblas","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/openblas@0.2.8-6ubuntu1?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.2.8-2","0.2.8-3","0.2.8-4","0.2.8-6","0.2.8-6ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_name":"libopenblas-base","binary_version":"0.2.8-6ubuntu1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-4048.json"}},{"package":{"name":"openblas","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/openblas@0.2.18-1ubuntu1?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.2.14-1ubuntu1","0.2.15-1","0.2.15-1build1","0.2.18-1ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_name":"libopenblas-base","binary_version":"0.2.18-1ubuntu1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-4048.json"}},{"package":{"name":"lapack","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/lapack@3.7.1-4ubuntu1?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.7.1-3ubuntu2","3.7.1-4ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_name":"libblas-test","binary_version":"3.7.1-4ubuntu1"},{"binary_name":"libblas3","binary_version":"3.7.1-4ubuntu1"},{"binary_name":"liblapack-doc-man","binary_version":"3.7.1-4ubuntu1"},{"binary_name":"liblapack-pic","binary_version":"3.7.1-4ubuntu1"},{"binary_name":"liblapack-test","binary_version":"3.7.1-4ubuntu1"},{"binary_name":"liblapack3","binary_version":"3.7.1-4ubuntu1"},{"binary_name":"liblapacke","binary_version":"3.7.1-4ubuntu1"},{"binary_name":"libtmglib3","binary_version":"3.7.1-4ubuntu1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-4048.json"}},{"package":{"name":"openblas","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/openblas@0.2.20+ds-4?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.2.20+ds-4"],"ecosystem_specific":{"binaries":[{"binary_name":"libopenblas-base","binary_version":"0.2.20+ds-4"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-4048.json"}},{"package":{"name":"lapack","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/lapack@3.9.0-1build1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.8.0-2","3.8.0-8ubuntu1","3.9.0-1","3.9.0-1build1"],"ecosystem_specific":{"binaries":[{"binary_name":"libblas-test","binary_version":"3.9.0-1build1"},{"binary_name":"libblas3","binary_version":"3.9.0-1build1"},{"binary_name":"libblas64-3","binary_version":"3.9.0-1build1"},{"binary_name":"libblas64-test","binary_version":"3.9.0-1build1"},{"binary_name":"liblapack-pic","binary_version":"3.9.0-1build1"},{"binary_name":"liblapack-test","binary_version":"3.9.0-1build1"},{"binary_name":"liblapack3","binary_version":"3.9.0-1build1"},{"binary_name":"liblapack64-3","binary_version":"3.9.0-1build1"},{"binary_name":"liblapack64-test","binary_version":"3.9.0-1build1"},{"binary_name":"liblapacke","binary_version":"3.9.0-1build1"},{"binary_name":"liblapacke64","binary_version":"3.9.0-1build1"},{"binary_name":"libtmglib3","binary_version":"3.9.0-1build1"},{"binary_name":"libtmglib64-3","binary_version":"3.9.0-1build1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-4048.json"}},{"package":{"name":"openblas","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/openblas@0.3.8+ds-1ubuntu0.20.04.1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.3.7+ds-1","0.3.7+ds-7","0.3.8+ds-1","0.3.8+ds-1ubuntu0.20.04.1"],"ecosystem_specific":{"binaries":[{"binary_name":"libopenblas-base","binary_version":"0.3.8+ds-1ubuntu0.20.04.1"},{"binary_name":"libopenblas0","binary_version":"0.3.8+ds-1ubuntu0.20.04.1"},{"binary_name":"libopenblas0-openmp","binary_version":"0.3.8+ds-1ubuntu0.20.04.1"},{"binary_name":"libopenblas0-pthread","binary_version":"0.3.8+ds-1ubuntu0.20.04.1"},{"binary_name":"libopenblas0-serial","binary_version":"0.3.8+ds-1ubuntu0.20.04.1"},{"binary_name":"libopenblas64-0","binary_version":"0.3.8+ds-1ubuntu0.20.04.1"},{"binary_name":"libopenblas64-0-openmp","binary_version":"0.3.8+ds-1ubuntu0.20.04.1"},{"binary_name":"libopenblas64-0-pthread","binary_version":"0.3.8+ds-1ubuntu0.20.04.1"},{"binary_name":"libopenblas64-0-serial","binary_version":"0.3.8+ds-1ubuntu0.20.04.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-4048.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H"},{"type":"Ubuntu","score":"low"}]}