Vulnerability CVE-2017-9242
Published: 2017-05-26   Modified: 2017-05-27

Description:
The __ip6_append_data function in net/ipv6/ip6_output.c in the Linux kernel through 4.11.3 is too late in checking whether an overwrite of an skb data structure may occur, which allows local users to cause a denial of service (system crash) via crafted system calls.

Type:

CWE-20

 (Improper Input Validation)

CVSS2 => (AV:L/AC:L/Au:N/C:N/I:N/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.9/10
6.9/10
3.9/10
Exploit range
Attack complexity
Authentication
Local
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Complete
Affected software
Linux -> Linux kernel 

 References:
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=232cd35d0804cc241eb887bb8d4d9b3b9881c64a
http://www.debian.org/security/2017/dsa-3886
http://www.securityfocus.com/bid/98731
https://access.redhat.com/errata/RHSA-2017:1842
https://access.redhat.com/errata/RHSA-2017:2077
https://github.com/torvalds/linux/commit/232cd35d0804cc241eb887bb8d4d9b3b9881c64a
https://patchwork.ozlabs.org/patch/764880/
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