CVE-2021-4203
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 1.7%
exploitation probability
1.7%top 23% of all CVEs
observed exploitation
nono source reports it
A use-after-free read flaw was found in sock_getsockopt() in net/core/sock.c due to SO_PEERCRED and SO_PEERGROUPS race with listen() (and connect()) in the Linux kernel. In this flaw, an attacker with a user privileges may crash the system or leak internal kernel information.
Affected products
n/a · kernelReferences
https://bugs.chromium.org/p/project-zero/issues/detail?id=2230&can=7&q=modified-after%3Atoday-30&sort=-modified&colspec=ID%20Type%20Status%20Priority%20Milestone%20Owner%20Summary%20Modified%20Cve&cells=tiles&redir=1https://bugzilla.redhat.com/show_bug.cgi?id=2036934https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=35306eb23814https://lore.kernel.org/netdev/20210929225750.2548112-1-eric.dumazet%40gmail.com/T/https://security.netapp.com/advisory/ntap-20221111-0003/https://www.oracle.com/security-alerts/cpujul2022.html