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Amazon Linux AMI: CVE-2017-6347: Security patch for kernel (ALAS-2017-811)

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Amazon Linux AMI: CVE-2017-6347: Security patch for kernel (ALAS-2017-811)

Severity
7
CVSS
(AV:L/AC:L/Au:N/C:C/I:C/A:C)
Published
03/01/2017
Created
07/25/2018
Added
03/30/2017
Modified
05/07/2019

Description

The ip_cmsg_recv_checksum function in net/ipv4/ip_sockglue.c in the Linux kernel before 4.10.1 has incorrect expectations about skb data layout, which allows local users to cause a denial of service (buffer over-read) or possibly have unspecified other impact via crafted system calls, as demonstrated by use of the MSG_MORE flag in conjunction with loopback UDP transmission.

Solution(s)

  • amazon-linux-upgrade-kernel

References

  • amazon-linux-upgrade-kernel

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