CVE-2021-23134: high-severity vulnerability in Linux Kernel
Linux kernel llcp_sock_bind/connect use-after-free
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.8epss 0.4%
Use After Free vulnerability in nfc sockets in the Linux Kernel before 5.12.4 allows local attackers to elevate their privileges. In typical configurations, the issue can only be triggered by a privileged local user with the CAP_NET_RAW capability.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products
Linux Kernel · Linux KernelRelated CVEs — Linux Kernel
In the same product, most dangerous first.
CVE-2021-22543HIGHImproper memory handling in Linux KVMEPSS 0.7%CVE-2018-6554—CVE-2018-6554EPSS 0.5%CVE-2018-6555—CVE-2018-6555EPSS 0.5%CVE-2021-23133MEDIUMLinux Kernel sctp_destroy_sock race conditionEPSS 0.5%CVE-2022-2503MEDIUMLinux Kernel LoadPin bypass via dm-verity table reloadEPSS 0.4%CVE-2022-2327HIGHUse-after-free in io_uring ad work_flags in Linux KernelEPSS 0.3%
References
https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=c61760e6940dhttps://lists.debian.org/debian-lts-announce/2021/06/msg00019.htmlhttps://lists.debian.org/debian-lts-announce/2021/06/msg00020.htmlhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LZYORWNQIHNWRFYRDXBWYWBYM46PDZEN/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QALNQT4LJFVSSA3MWCIECVY4AFPP4X77/https://security.netapp.com/advisory/ntap-20210625-0007/https://www.openwall.com/lists/oss-security/2021/05/11/4