Rapid7 Vulnerability & Exploit Database

Amazon Linux AMI: Security patch for kernel (ALAS-2015-491) (CVE-2015-1593)

Back to Search

Amazon Linux AMI: Security patch for kernel (ALAS-2015-491) (CVE-2015-1593)

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:P/I:N/A:N)
Published
03/16/2015
Created
07/25/2018
Added
03/18/2015
Modified
06/21/2018

Description

The stack randomization feature in the Linux kernel before 3.19.1 on 64-bit platforms uses incorrect data types for the results of bitwise left-shift operations, which makes it easier for attackers to bypass the ASLR protection mechanism by predicting the address of the top of the stack, related to the randomize_stack_top function in fs/binfmt_elf.c and the stack_maxrandom_size function in arch/x86/mm/mmap.c.

Solution(s)

  • amazon-linux-upgrade-kernel
  • amazon-linux-upgrade-kernel-debuginfo
  • amazon-linux-upgrade-kernel-debuginfo-common-i686
  • amazon-linux-upgrade-kernel-debuginfo-common-x86_64
  • amazon-linux-upgrade-kernel-devel
  • amazon-linux-upgrade-kernel-doc
  • amazon-linux-upgrade-kernel-headers
  • amazon-linux-upgrade-kernel-tools
  • amazon-linux-upgrade-kernel-tools-debuginfo
  • amazon-linux-upgrade-kernel-tools-devel
  • amazon-linux-upgrade-perf
  • amazon-linux-upgrade-perf-debuginfo

References

  • amazon-linux-upgrade-kernel
  • amazon-linux-upgrade-kernel-debuginfo
  • amazon-linux-upgrade-kernel-debuginfo-common-i686
  • amazon-linux-upgrade-kernel-debuginfo-common-x86_64
  • amazon-linux-upgrade-kernel-devel
  • amazon-linux-upgrade-kernel-doc
  • amazon-linux-upgrade-kernel-headers
  • amazon-linux-upgrade-kernel-tools
  • amazon-linux-upgrade-kernel-tools-debuginfo
  • amazon-linux-upgrade-kernel-tools-devel
  • amazon-linux-upgrade-perf
  • amazon-linux-upgrade-perf-debuginfo

With Rapid7 live dashboards, I have a clear view of all the assets on my network, which ones can be exploited, and what I need to do in order to reduce the risk in my environment in real-time. No other tool gives us that kind of value and insight.

– Scott Cheney, Manager of Information Security, Sierra View Medical Center

;