{"id":"DEBIAN-CVE-2019-14876","details":"In the __lshift function of the newlib libc library, all versions prior to 3.3.0 (see newlib/libc/stdlib/mprec.c), Balloc is used to allocate a big integer, however no check is performed to verify if the allocation succeeded or not. The access to b1 will trigger a null pointer dereference bug in case of a memory allocation failure.","modified":"2026-09-21T07:02:04.100257422Z","published":"2020-03-19T16:15:13.707Z","upstream":["CVE-2019-14876"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2019-14876"}],"affected":[{"package":{"name":"newlib","ecosystem":"Debian:12","purl":"pkg:deb/debian/newlib?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.3.0-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2019-14876.json"}},{"package":{"name":"newlib","ecosystem":"Debian:13","purl":"pkg:deb/debian/newlib?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.3.0-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2019-14876.json"}},{"package":{"name":"newlib","ecosystem":"Debian:14","purl":"pkg:deb/debian/newlib?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.3.0-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2019-14876.json"}},{"package":{"name":"picolibc","ecosystem":"Debian:12","purl":"pkg:deb/debian/picolibc?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.8-1","1.8.1-1","1.8.10-1","1.8.10-2","1.8.10-3","1.8.11-1","1.8.11-2","1.8.11-3","1.8.11-4","1.8.12-1","1.8.2-1","1.8.2-2","1.8.4-1","1.8.5-1","1.8.5-2","1.8.6-1","1.8.6-2","1.8.7-1","1.8.8-1","1.8.8-2","1.8.9-1","1.8.9-2"],"ecosystem_specific":{"urgency":"unimportant"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2019-14876.json"}},{"package":{"name":"picolibc","ecosystem":"Debian:13","purl":"pkg:deb/debian/picolibc?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.8.10-2","1.8.10-3","1.8.11-1","1.8.11-2","1.8.11-3","1.8.11-4","1.8.12-1"],"ecosystem_specific":{"urgency":"unimportant"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2019-14876.json"}},{"package":{"name":"picolibc","ecosystem":"Debian:14","purl":"pkg:deb/debian/picolibc?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.8.10-2","1.8.10-3","1.8.11-1","1.8.11-2","1.8.11-3","1.8.11-4","1.8.12-1"],"ecosystem_specific":{"urgency":"unimportant"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2019-14876.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}