{"id":"UBUNTU-CVE-2021-44568","details":"Two heap-overflow vulnerabilities exist in openSUSE/libsolv libsolv through 13 Dec 2020 in the decisionmap variable via the resolve_dependencies function at src/solver.c (line 1940 & line 1995), which could cause a remote Denial of Service.","modified":"2026-04-22T15:00:57.805353Z","published":"2022-02-21T18:15:00Z","upstream":["CVE-2021-44568"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-44568"},{"type":"REPORT","url":"https://github.com/openSUSE/libsolv/issues/425"},{"type":"REPORT","url":"https://github.com/openSUSE/libsolv/commit/0077ef29eb46d2e1df2f230fc95a1d9748d49dec"},{"type":"REPORT","url":"https://github.com/yangjiageng/PoC/blob/master/libsolv-PoCs/resolve_dependencies-1940"},{"type":"REPORT","url":"https://github.com/yangjiageng/PoC/blob/master/libsolv-PoCs/resolve_dependencies-1995"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2021-44568"}],"affected":[{"package":{"name":"libsolv","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/libsolv@0.6.11-1.1ubuntu0.1~esm1?arch=source&distro=esm-apps/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.6.11-1","0.6.11-1build1","0.6.11-1.1","0.6.11-1.1ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"libsolv-perl","binary_version":"0.6.11-1.1ubuntu0.1~esm1"},{"binary_name":"libsolv-tools","binary_version":"0.6.11-1.1ubuntu0.1~esm1"},{"binary_name":"libsolv0","binary_version":"0.6.11-1.1ubuntu0.1~esm1"},{"binary_name":"libsolvext0","binary_version":"0.6.11-1.1ubuntu0.1~esm1"},{"binary_name":"python-solv","binary_version":"0.6.11-1.1ubuntu0.1~esm1"},{"binary_name":"python3-solv","binary_version":"0.6.11-1.1ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-44568.json"}},{"package":{"name":"libsolv","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/libsolv@0.6.30-1ubuntu0.1~esm1?arch=source&distro=esm-apps/bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.6.28-2build1","0.6.30-1build1","0.6.30-1ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"libsolv-perl","binary_version":"0.6.30-1ubuntu0.1~esm1"},{"binary_name":"libsolv-tools","binary_version":"0.6.30-1ubuntu0.1~esm1"},{"binary_name":"libsolv0","binary_version":"0.6.30-1ubuntu0.1~esm1"},{"binary_name":"libsolvext0","binary_version":"0.6.30-1ubuntu0.1~esm1"},{"binary_name":"python-solv","binary_version":"0.6.30-1ubuntu0.1~esm1"},{"binary_version":"0.6.30-1ubuntu0.1~esm1","binary_name":"python3-solv"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-44568.json"}},{"package":{"name":"libsolv","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/libsolv@0.6.36-2?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.6.35-2ubuntu1","0.6.35-2ubuntu2","0.6.36-1","0.6.36-2"],"ecosystem_specific":{"binaries":[{"binary_name":"libsolv-perl","binary_version":"0.6.36-2"},{"binary_name":"libsolv-tools","binary_version":"0.6.36-2"},{"binary_name":"libsolv0","binary_version":"0.6.36-2"},{"binary_name":"libsolvext0","binary_version":"0.6.36-2"},{"binary_name":"python3-solv","binary_version":"0.6.36-2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-44568.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}