CVE-2015-8970: 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…

PriorityP418medium5.5CVSS 3.0

AVLACLPRLUINSUCNINAH

EPSS

0.50%

40.4th percentile

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.

Affected

6 ranges

Vendor	Product	Version range	Fixed in
debian	linux	< linux 4.4.2-1 (bookworm)	linux 4.4.2-1 (bookworm)
linux	linux_kernel	<= 4.4.1	—
linux	linux_kernel	>= 0 < 4.4.2-1	4.4.2-1
linux	linux_kernel	>= 0 < 4.4.2-1	4.4.2-1
linux	linux_kernel	>= 0 < 4.4.2-1	4.4.2-1
linux	linux_kernel	>= 0 < 4.4.2-1	4.4.2-1

CVSS provenance

nvdv3.05.5MEDIUMCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

nvdv2.04.9MEDIUMAV:L/AC:L/Au:N/C:N/I:N/A:C

osv5.5MEDIUM

vendor_debian5.5MEDIUM

vendor_redhat5.5MEDIUM

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