Detections
Analytics
CVE-2015-8970
medium
Description
crypto/algif_skcipher.c in the Linux kernel before 4.4.2 does not verify that a setkey operation has been performed on an AF_ALG socket before an accept system call is processed, which allows local users to cause a denial of service (NULL pointer dereference and system crash) via a crafted application that does not supply a key, related to the lrw_crypt function in crypto/lrw.c.
References
https://github.com/torvalds/linux/commit/dd504589577d8e8e70f51f997ad487a4cb6c026f
https://groups.google.com/forum/#%21msg/syzkaller/frb2XrB5aWk/xCXzkIBcDAAJ
https://bugzilla.redhat.com/show_bug.cgi?id=1386286
https://access.redhat.com/errata/RHSA-2017:2444
https://access.redhat.com/errata/RHSA-2017:2437
https://access.redhat.com/errata/RHSA-2017:2077
https://access.redhat.com/errata/RHSA-2017:1842