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CVE-2016-9793

Published: Dec 28, 2016

Modified: Aug 6, 2024

PUBLISHED

Description

The sock_setsockopt function in net/core/sock.c in the Linux kernel before 4.8.14 mishandles negative values of sk_sndbuf and sk_rcvbuf, which allows local users to cause a denial of service (memory corruption and system crash) or possibly have unspecified other impact by leveraging the CAP_NET_ADMIN capability for a crafted setsockopt system call with the (1) SO_SNDBUFFORCE or (2) SO_RCVBUFFORCE option.

Vendor	Product	Versions
n/a	n/a	affected `n/a`

References

https://github.com/torvalds/linux/commit/b98b0bc8c431e3ceb4b26b0dfc8db509518fb290

x_refsource_CONFIRM

vdb-entry

x_refsource_SECTRACK

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b98b0bc8c431e3ceb4b26b0dfc8db509518fb290

x_refsource_CONFIRM

vendor-advisory

x_refsource_REDHAT

https://github.com/xairy/kernel-exploits/tree/master/CVE-2016-9793

x_refsource_MISC

vdb-entry

x_refsource_BID

[oss-security] 20161202 Re: CVE Request: Linux: signed overflows for SO_{SND|RCV}BUFFORCE

mailing-list

x_refsource_MLIST

http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.14

x_refsource_CONFIRM

vendor-advisory

x_refsource_REDHAT

vendor-advisory

x_refsource_REDHAT

https://source.android.com/security/bulletin/2017-03-01.html

x_refsource_CONFIRM

https://bugzilla.redhat.com/show_bug.cgi?id=1402013

x_refsource_CONFIRM

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