cve-2021-23133
Vulnerability from cvelistv5
Published
2021-04-22 18:00
Modified
2024-09-16 19:04
Severity ?
6.7 (Medium) - CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Summary
A race condition in Linux kernel SCTP sockets (net/sctp/socket.c) before 5.12-rc8 can lead to kernel privilege escalation from the context of a network service or an unprivileged process. If sctp_destroy_sock is called without sock_net(sk)->sctp.addr_wq_lock then an element is removed from the auto_asconf_splist list without any proper locking. This can be exploited by an attacker with network service privileges to escalate to root or from the context of an unprivileged user directly if a BPF_CGROUP_INET_SOCK_CREATE is attached which denies creation of some SCTP socket.
References
psirt@paloaltonetworks.comhttp://www.openwall.com/lists/oss-security/2021/05/10/1Mailing List, Patch, Third Party Advisory
psirt@paloaltonetworks.comhttp://www.openwall.com/lists/oss-security/2021/05/10/2Mailing List, Patch, Third Party Advisory
psirt@paloaltonetworks.comhttp://www.openwall.com/lists/oss-security/2021/05/10/3Mailing List, Patch, Third Party Advisory
psirt@paloaltonetworks.comhttp://www.openwall.com/lists/oss-security/2021/05/10/4Mailing List, Patch, Third Party Advisory
psirt@paloaltonetworks.comhttps://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b166a20b07382b8bc1dcee2a448715c9c2c81b5bMailing List, Patch, Vendor Advisory
psirt@paloaltonetworks.comhttps://lists.debian.org/debian-lts-announce/2021/06/msg00019.htmlMitigation, Third Party Advisory
psirt@paloaltonetworks.comhttps://lists.debian.org/debian-lts-announce/2021/06/msg00020.htmlMitigation, Third Party Advisory
psirt@paloaltonetworks.comhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CUX2CA63453G34C6KYVBLJXJXEARZI2X/
psirt@paloaltonetworks.comhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PAEQ3H6HKNO6KUCGRZVYSFSAGEUX23JL/
psirt@paloaltonetworks.comhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XZASHZVCOFJ4VU2I3BN5W5EPHWJQ7QWX/
psirt@paloaltonetworks.comhttps://security.netapp.com/advisory/ntap-20210611-0008/Third Party Advisory
psirt@paloaltonetworks.comhttps://www.openwall.com/lists/oss-security/2021/04/18/2Exploit, Mailing List, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2021/05/10/1Mailing List, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2021/05/10/2Mailing List, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2021/05/10/3Mailing List, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2021/05/10/4Mailing List, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b166a20b07382b8bc1dcee2a448715c9c2c81b5bMailing List, Patch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2021/06/msg00019.htmlMitigation, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2021/06/msg00020.htmlMitigation, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CUX2CA63453G34C6KYVBLJXJXEARZI2X/
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PAEQ3H6HKNO6KUCGRZVYSFSAGEUX23JL/
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XZASHZVCOFJ4VU2I3BN5W5EPHWJQ7QWX/
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20210611-0008/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.openwall.com/lists/oss-security/2021/04/18/2Exploit, Mailing List, Patch, Third Party Advisory
Impacted products
Vendor Product Version
Linux Kernel Linux Kernel Version: unspecified   < 5.12-rc8
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}