{"id":"UBUNTU-CVE-2024-33600","details":"nscd: Null pointer crashes after notfound response If the Name Service Cache Daemon's (nscd) cache fails to add a not-found netgroup response to the cache, the client request can result in a null pointer dereference.  This flaw was introduced in glibc 2.15 when the cache was added to nscd. This vulnerability is only present in the nscd binary.","modified":"2026-04-22T17:52:15.434442Z","published":"2024-05-06T20:15:00Z","related":["USN-6804-1"],"upstream":["CVE-2024-33600"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2024-33600"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2024-33600"},{"type":"REPORT","url":"https://inbox.sourceware.org/libc-alpha/cover.1713974801.git.fweimer@redhat.com/"},{"type":"REPORT","url":"https://www.openwall.com/lists/oss-security/2024/04/24/2"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-6804-1"}],"affected":[{"package":{"name":"eglibc","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/eglibc@2.19-0ubuntu6.15+esm4?arch=source&distro=esm-infra-legacy/trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.17-93ubuntu4","2.18-0ubuntu1","2.18-0ubuntu2","2.18-0ubuntu4","2.18-0ubuntu5","2.18-0ubuntu6","2.18-0ubuntu7","2.19-0ubuntu2","2.19-0ubuntu3","2.19-0ubuntu4","2.19-0ubuntu5","2.19-0ubuntu6","2.19-0ubuntu6.1","2.19-0ubuntu6.3","2.19-0ubuntu6.4","2.19-0ubuntu6.5","2.19-0ubuntu6.6","2.19-0ubuntu6.7","2.19-0ubuntu6.8","2.19-0ubuntu6.9","2.19-0ubuntu6.10","2.19-0ubuntu6.11","2.19-0ubuntu6.13","2.19-0ubuntu6.14","2.19-0ubuntu6.15","2.19-0ubuntu6.15+esm1","2.19-0ubuntu6.15+esm2","2.19-0ubuntu6.15+esm3","2.19-0ubuntu6.15+esm4"],"ecosystem_specific":{"binaries":[{"binary_name":"eglibc-source","binary_version":"2.19-0ubuntu6.15+esm4"},{"binary_name":"libc-bin","binary_version":"2.19-0ubuntu6.15+esm4"},{"binary_name":"libc-dev-bin","binary_version":"2.19-0ubuntu6.15+esm4"},{"binary_name":"libc6","binary_version":"2.19-0ubuntu6.15+esm4"},{"binary_name":"libc6-amd64","binary_version":"2.19-0ubuntu6.15+esm4"},{"binary_name":"libc6-armel","binary_version":"2.19-0ubuntu6.15+esm4"},{"binary_name":"libc6-dev-amd64","binary_version":"2.19-0ubuntu6.15+esm4"},{"binary_name":"libc6-dev-armel","binary_version":"2.19-0ubuntu6.15+esm4"},{"binary_name":"libc6-dev-i386","binary_version":"2.19-0ubuntu6.15+esm4"},{"binary_name":"libc6-dev-x32","binary_version":"2.19-0ubuntu6.15+esm4"},{"binary_name":"libc6-i386","binary_version":"2.19-0ubuntu6.15+esm4"},{"binary_name":"libc6-pic","binary_version":"2.19-0ubuntu6.15+esm4"},{"binary_name":"libc6-prof","binary_version":"2.19-0ubuntu6.15+esm4"},{"binary_name":"libc6-x32","binary_version":"2.19-0ubuntu6.15+esm4"},{"binary_name":"multiarch-support","binary_version":"2.19-0ubuntu6.15+esm4"},{"binary_name":"nscd","binary_version":"2.19-0ubuntu6.15+esm4"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-33600.json"}},{"package":{"name":"glibc","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/glibc@2.23-0ubuntu11.3+esm7?arch=source&distro=esm-infra/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.23-0ubuntu11.3+esm7"}]}],"versions":["2.21-0ubuntu4","2.21-0ubuntu5","2.21-0ubuntu6","2.23-0ubuntu1","2.23-0ubuntu2","2.23-0ubuntu3","2.23-0ubuntu4","2.23-0ubuntu5","2.23-0ubuntu6","2.23-0ubuntu7","2.23-0ubuntu9","2.23-0ubuntu10","2.23-0ubuntu11","2.23-0ubuntu11.2","2.23-0ubuntu11.3","2.23-0ubuntu11.3+esm1","2.23-0ubuntu11.3+esm2","2.23-0ubuntu11.3+esm3","2.23-0ubuntu11.3+esm5","2.23-0ubuntu11.3+esm6"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro","binaries":[{"binary_version":"2.23-0ubuntu11.3+esm7","binary_name":"glibc-source"},{"binary_name":"libc-bin","binary_version":"2.23-0ubuntu11.3+esm7"},{"binary_name":"libc-dev-bin","binary_version":"2.23-0ubuntu11.3+esm7"},{"binary_name":"libc6","binary_version":"2.23-0ubuntu11.3+esm7"},{"binary_name":"libc6-amd64","binary_version":"2.23-0ubuntu11.3+esm7"},{"binary_name":"libc6-armel","binary_version":"2.23-0ubuntu11.3+esm7"},{"binary_name":"libc6-dev-amd64","binary_version":"2.23-0ubuntu11.3+esm7"},{"binary_name":"libc6-dev-armel","binary_version":"2.23-0ubuntu11.3+esm7"},{"binary_name":"libc6-dev-i386","binary_version":"2.23-0ubuntu11.3+esm7"},{"binary_version":"2.23-0ubuntu11.3+esm7","binary_name":"libc6-dev-s390"},{"binary_name":"libc6-dev-x32","binary_version":"2.23-0ubuntu11.3+esm7"},{"binary_name":"libc6-i386","binary_version":"2.23-0ubuntu11.3+esm7"},{"binary_name":"libc6-pic","binary_version":"2.23-0ubuntu11.3+esm7"},{"binary_name":"libc6-s390","binary_version":"2.23-0ubuntu11.3+esm7"},{"binary_name":"libc6-x32","binary_version":"2.23-0ubuntu11.3+esm7"},{"binary_name":"locales","binary_version":"2.23-0ubuntu11.3+esm7"},{"binary_name":"locales-all","binary_version":"2.23-0ubuntu11.3+esm7"},{"binary_name":"multiarch-support","binary_version":"2.23-0ubuntu11.3+esm7"},{"binary_name":"nscd","binary_version":"2.23-0ubuntu11.3+esm7"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-33600.json"}},{"package":{"name":"glibc","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/glibc@2.27-3ubuntu1.6+esm3?arch=source&distro=esm-infra/bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.27-3ubuntu1.6+esm3"}]}],"versions":["2.26-0ubuntu2","2.26-0ubuntu2.1","2.27-0ubuntu2","2.27-0ubuntu3","2.27-3ubuntu1","2.27-3ubuntu1.2","2.27-3ubuntu1.3","2.27-3ubuntu1.4","2.27-3ubuntu1.5","2.27-3ubuntu1.6","2.27-3ubuntu1.6+esm1","2.27-3ubuntu1.6+esm2"],"ecosystem_specific":{"binaries":[{"binary_name":"glibc-source","binary_version":"2.27-3ubuntu1.6+esm3"},{"binary_name":"libc-bin","binary_version":"2.27-3ubuntu1.6+esm3"},{"binary_name":"libc-dev-bin","binary_version":"2.27-3ubuntu1.6+esm3"},{"binary_version":"2.27-3ubuntu1.6+esm3","binary_name":"libc6"},{"binary_name":"libc6-amd64","binary_version":"2.27-3ubuntu1.6+esm3"},{"binary_name":"libc6-armel","binary_version":"2.27-3ubuntu1.6+esm3"},{"binary_name":"libc6-dev-amd64","binary_version":"2.27-3ubuntu1.6+esm3"},{"binary_name":"libc6-dev-armel","binary_version":"2.27-3ubuntu1.6+esm3"},{"binary_name":"libc6-dev-i386","binary_version":"2.27-3ubuntu1.6+esm3"},{"binary_name":"libc6-dev-s390","binary_version":"2.27-3ubuntu1.6+esm3"},{"binary_name":"libc6-dev-x32","binary_version":"2.27-3ubuntu1.6+esm3"},{"binary_name":"libc6-i386","binary_version":"2.27-3ubuntu1.6+esm3"},{"binary_name":"libc6-lse","binary_version":"2.27-3ubuntu1.6+esm3"},{"binary_name":"libc6-pic","binary_version":"2.27-3ubuntu1.6+esm3"},{"binary_name":"libc6-s390","binary_version":"2.27-3ubuntu1.6+esm3"},{"binary_name":"libc6-x32","binary_version":"2.27-3ubuntu1.6+esm3"},{"binary_name":"locales","binary_version":"2.27-3ubuntu1.6+esm3"},{"binary_name":"locales-all","binary_version":"2.27-3ubuntu1.6+esm3"},{"binary_name":"multiarch-support","binary_version":"2.27-3ubuntu1.6+esm3"},{"binary_name":"nscd","binary_version":"2.27-3ubuntu1.6+esm3"}],"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-33600.json"}},{"package":{"name":"glibc","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/glibc@2.31-0ubuntu9.16?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.31-0ubuntu9.16"}]}],"versions":["2.30-0ubuntu2","2.30-0ubuntu3","2.31-0ubuntu5","2.31-0ubuntu6","2.31-0ubuntu7","2.31-0ubuntu9","2.31-0ubuntu9.1","2.31-0ubuntu9.2","2.31-0ubuntu9.3","2.31-0ubuntu9.7","2.31-0ubuntu9.9","2.31-0ubuntu9.12","2.31-0ubuntu9.14","2.31-0ubuntu9.15"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"glibc-source","binary_version":"2.31-0ubuntu9.16"},{"binary_name":"libc-bin","binary_version":"2.31-0ubuntu9.16"},{"binary_name":"libc-dev-bin","binary_version":"2.31-0ubuntu9.16"},{"binary_name":"libc6","binary_version":"2.31-0ubuntu9.16"},{"binary_name":"libc6-amd64","binary_version":"2.31-0ubuntu9.16"},{"binary_name":"libc6-armel","binary_version":"2.31-0ubuntu9.16"},{"binary_name":"libc6-dev-amd64","binary_version":"2.31-0ubuntu9.16"},{"binary_name":"libc6-dev-armel","binary_version":"2.31-0ubuntu9.16"},{"binary_name":"libc6-dev-i386","binary_version":"2.31-0ubuntu9.16"},{"binary_name":"libc6-dev-s390","binary_version":"2.31-0ubuntu9.16"},{"binary_name":"libc6-dev-x32","binary_version":"2.31-0ubuntu9.16"},{"binary_name":"libc6-i386","binary_version":"2.31-0ubuntu9.16"},{"binary_name":"libc6-lse","binary_version":"2.31-0ubuntu9.16"},{"binary_name":"libc6-pic","binary_version":"2.31-0ubuntu9.16"},{"binary_version":"2.31-0ubuntu9.16","binary_name":"libc6-prof"},{"binary_name":"libc6-s390","binary_version":"2.31-0ubuntu9.16"},{"binary_name":"libc6-x32","binary_version":"2.31-0ubuntu9.16"},{"binary_name":"locales","binary_version":"2.31-0ubuntu9.16"},{"binary_name":"locales-all","binary_version":"2.31-0ubuntu9.16"},{"binary_name":"nscd","binary_version":"2.31-0ubuntu9.16"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-33600.json"}},{"package":{"name":"glibc","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/glibc@2.35-0ubuntu3.8?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.35-0ubuntu3.8"}]}],"versions":["2.34-0ubuntu3","2.35-0ubuntu1","2.35-0ubuntu3","2.35-0ubuntu3.1","2.35-0ubuntu3.3","2.35-0ubuntu3.4","2.35-0ubuntu3.5","2.35-0ubuntu3.6","2.35-0ubuntu3.7"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"2.35-0ubuntu3.8","binary_name":"glibc-source"},{"binary_version":"2.35-0ubuntu3.8","binary_name":"libc-bin"},{"binary_name":"libc-dev-bin","binary_version":"2.35-0ubuntu3.8"},{"binary_name":"libc-devtools","binary_version":"2.35-0ubuntu3.8"},{"binary_version":"2.35-0ubuntu3.8","binary_name":"libc6"},{"binary_name":"libc6-amd64","binary_version":"2.35-0ubuntu3.8"},{"binary_name":"libc6-dev-amd64","binary_version":"2.35-0ubuntu3.8"},{"binary_version":"2.35-0ubuntu3.8","binary_name":"libc6-dev-i386"},{"binary_name":"libc6-dev-s390","binary_version":"2.35-0ubuntu3.8"},{"binary_name":"libc6-dev-x32","binary_version":"2.35-0ubuntu3.8"},{"binary_name":"libc6-i386","binary_version":"2.35-0ubuntu3.8"},{"binary_name":"libc6-prof","binary_version":"2.35-0ubuntu3.8"},{"binary_name":"libc6-s390","binary_version":"2.35-0ubuntu3.8"},{"binary_version":"2.35-0ubuntu3.8","binary_name":"libc6-x32"},{"binary_name":"locales","binary_version":"2.35-0ubuntu3.8"},{"binary_name":"locales-all","binary_version":"2.35-0ubuntu3.8"},{"binary_name":"nscd","binary_version":"2.35-0ubuntu3.8"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-33600.json"}},{"package":{"name":"glibc","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/glibc@2.39-0ubuntu8.2?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.39-0ubuntu8.2"}]}],"versions":["2.38-1ubuntu6","2.38-3ubuntu1","2.39-0ubuntu1","2.39-0ubuntu2","2.39-0ubuntu6","2.39-0ubuntu8","2.39-0ubuntu8.1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"glibc-source","binary_version":"2.39-0ubuntu8.2"},{"binary_name":"libc-bin","binary_version":"2.39-0ubuntu8.2"},{"binary_name":"libc-dev-bin","binary_version":"2.39-0ubuntu8.2"},{"binary_name":"libc-devtools","binary_version":"2.39-0ubuntu8.2"},{"binary_name":"libc6","binary_version":"2.39-0ubuntu8.2"},{"binary_name":"libc6-amd64","binary_version":"2.39-0ubuntu8.2"},{"binary_name":"libc6-dev-amd64","binary_version":"2.39-0ubuntu8.2"},{"binary_name":"libc6-dev-i386","binary_version":"2.39-0ubuntu8.2"},{"binary_name":"libc6-dev-s390","binary_version":"2.39-0ubuntu8.2"},{"binary_name":"libc6-dev-x32","binary_version":"2.39-0ubuntu8.2"},{"binary_name":"libc6-i386","binary_version":"2.39-0ubuntu8.2"},{"binary_name":"libc6-s390","binary_version":"2.39-0ubuntu8.2"},{"binary_name":"libc6-x32","binary_version":"2.39-0ubuntu8.2"},{"binary_name":"locales","binary_version":"2.39-0ubuntu8.2"},{"binary_name":"locales-all","binary_version":"2.39-0ubuntu8.2"},{"binary_version":"2.39-0ubuntu8.2","binary_name":"nscd"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-33600.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}