CVE-2018-12232
Vulnerability from cvelistv5
Published
2018-06-12 12:00
Modified
2024-08-05 08:30
Severity ?
Summary
In net/socket.c in the Linux kernel through 4.17.1, there is a race condition between fchownat and close in cases where they target the same socket file descriptor, related to the sock_close and sockfs_setattr functions. fchownat does not increment the file descriptor reference count, which allows close to set the socket to NULL during fchownat's execution, leading to a NULL pointer dereference and system crash.
References
cve@mitre.orghttp://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6d8c50dcb029872b298eea68cc6209c866fd3e14Patch, Third Party Advisory
cve@mitre.orghttp://www.securityfocus.com/bid/104453Third Party Advisory, VDB Entry
cve@mitre.orghttps://access.redhat.com/errata/RHSA-2018:2948
cve@mitre.orghttps://github.com/torvalds/linux/commit/6d8c50dcb029872b298eea68cc6209c866fd3e14Patch, Third Party Advisory
cve@mitre.orghttps://lkml.org/lkml/2018/6/5/14Third Party Advisory
cve@mitre.orghttps://patchwork.ozlabs.org/patch/926519/Patch, Third Party Advisory
cve@mitre.orghttps://usn.ubuntu.com/3752-1/
cve@mitre.orghttps://usn.ubuntu.com/3752-2/
cve@mitre.orghttps://usn.ubuntu.com/3752-3/
Impacted products
n/an/a
Show details on NVD website

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