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CVE-2016-9793

Public on 2016-12-28
Modified on 2017-02-22
Description

A flaw was found in the Linux kernel's implementation of setsockopt for the SO_{SND|RCV}BUFFORCE setsockopt() system call. Users with non-namespace CAP_NET_ADMIN are able to trigger this call and create a situation in which the sockets sendbuff data size could be negative. This could adversely affect memory allocations and create situations where the system could crash or cause memory corruption.

Severity
Medium
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CVSS v3 Base Score
6.7
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Affected Packages

Platform Package Release Date Advisory
Amazon Linux 1 kernel 2017-01-04 17:00 ALAS-2017-782

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv2 6.9 AV:L/AC:M/Au:N/C:C/I:C/A:C
Amazon Linux CVSSv3 6.7 CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
NVD CVSSv2 7.2 AV:L/AC:L/Au:N/C:C/I:C/A:C
NVD CVSSv3 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H