Access Restriction Bypass Affecting torvalds/linux package, versions [,3.18.10)


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
1.44% (80th percentile)

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  • Snyk IDSNYK-UNMANAGED-TORVALDSLINUX-3005603
  • published26 Jan 2022
  • disclosed16 Mar 2015
  • creditUnknown

Introduced: 16 Mar 2015

CVE-2015-1593  (opens in a new tab)
CWE-264  (opens in a new tab)

How to fix?

Upgrade torvalds/linux to version 3.18.10 or higher.

Overview

Affected versions of this package are vulnerable to Access Restriction Bypass. 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.

CVSS Base Scores

version 3.1