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Amazon Linux AMI: CVE-2017-7184: Security patch for kernel (ALAS-2017-811)

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Amazon Linux AMI: CVE-2017-7184: Security patch for kernel (ALAS-2017-811)

Severity
7
CVSS
(AV:L/AC:L/Au:N/C:C/I:C/A:C)
Published
03/19/2017
Created
07/25/2018
Added
03/30/2017
Modified
10/14/2022

Description

The xfrm_replay_verify_len function in net/xfrm/xfrm_user.c in the Linux kernel through 4.10.6 does not validate certain size data after an XFRM_MSG_NEWAE update, which allows local users to obtain root privileges or cause a denial of service (heap-based out-of-bounds access) by leveraging the CAP_NET_ADMIN capability, as demonstrated during a Pwn2Own competition at CanSecWest 2017 for the Ubuntu 16.10 linux-image-* package 4.8.0.41.52.

Solution(s)

  • amazon-linux-upgrade-kernel

References

  • ALAS-2017-811
  • CVE-2017-7184
  • USN-3248-1
  • USN-3249-1
  • USN-3249-2
  • USN-3250-1
  • USN-3250-2
  • USN-3251-1
  • USN-3251-2
  • DLA-922-1
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