NULL pointer dereference in Linux kernel - CVE-2016-10147
Published: January 18, 2017 / Updated: February 12, 2023
Vulnerability identifier: #VU90674
CSH Severity: Low
CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2016-10147
CWE-ID: CWE-476
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the mcryptd_check_internal() and mcryptd_create_hash() functions in crypto/mcryptd.c. A local user can perform a denial of service (DoS) attack.
Affected software
Linux kernel
Ubuntu
linux (Ubuntu package)
linux-snapdragon (Ubuntu package)
Ubuntu
linux (Ubuntu package)
linux-snapdragon (Ubuntu package)
How to mitigate CVE-2016-10147
Install update from vendor's website.
Linux kernel - update to 4.8.15
linux (Ubuntu package) - addressed in versions 4.4.0-62.83, 4.8.0-37.39
linux-snapdragon (Ubuntu package) - update to 4.4.0-1046.50
linux (Ubuntu package) - addressed in versions 4.4.0-62.83, 4.8.0-37.39
linux-snapdragon (Ubuntu package) - update to 4.4.0-1046.50
External References
- https://github.com/torvalds/linux/commit/48a992727d82cb7db076fa15d372178743b1f4cd
- https://bugzilla.redhat.com/show_bug.cgi?id=1404200
- http://www.openwall.com/lists/oss-security/2017/01/17/13
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.15
- http://marc.info/?l=linux-crypto-vger&m=148063683310477&w=2
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=48a992727d82cb7db076fa15d372178743b1f4cd
- http://www.securityfocus.com/bid/95677
- https://access.redhat.com/errata/RHSA-2017:2077
- https://access.redhat.com/errata/RHSA-2017:1842