CVE-2021-33910
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.5epss 8.8%
exploitation probability
8.8%top 5% of all CVEs
observed exploitation
nono source reports it
basic/unit-name.c in systemd prior to 246.15, 247.8, 248.5, and 249.1 has a Memory Allocation with an Excessive Size Value (involving strdupa and alloca for a pathname controlled by a local attacker) that results in an operating system crash.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected products
n/a · n/aReferences
http://packetstormsecurity.com/files/163621/Sequoia-A-Deep-Root-In-Linuxs-Filesystem-Layer.htmlhttps://cert-portal.siemens.com/productcert/pdf/ssa-222547.pdfhttps://github.com/systemd/systemd/commit/b34a4f0e6729de292cb3b0c03c1d48f246ad896bhttps://github.com/systemd/systemd/pull/20256/commits/441e0115646d54f080e5c3bb0ba477c892861ab9https://github.com/systemd/systemd-stable/commit/4a1c5f34bd3e1daed4490e9d97918e504d19733bhttps://github.com/systemd/systemd-stable/commit/764b74113e36ac5219a4b82a05f311b5a92136cehttps://github.com/systemd/systemd-stable/commit/b00674347337b7531c92fdb65590ab253bb57538https://github.com/systemd/systemd-stable/commit/cfd14c65374027b34dbbc4f0551456c5dc2d1f61https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2LSDMHAKI4LGFOCSPXNVVSEWQFAVFWR7/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/42TMJVNYRY65B4QCJICBYOEIVZV3KUYI/https://security.gentoo.org/glsa/202107-48https://security.netapp.com/advisory/ntap-20211104-0008/