Insecure Encryption Affecting torvalds/linux package, versions [,5.1.7)


Severity

Recommended
0.0
medium
0
10

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

Threat Intelligence

EPSS
0.76% (73rd percentile)

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  • Snyk IDSNYK-UNMANAGED-TORVALDSLINUX-3005185
  • published26 Jan 2022
  • disclosed5 Jul 2019
  • creditUnknown

Introduced: 5 Jul 2019

CVE-2019-10638  (opens in a new tab)
CWE-326  (opens in a new tab)

How to fix?

Upgrade torvalds/linux to version 5.1.7 or higher.

Overview

Affected versions of this package are vulnerable to Insecure Encryption. In the Linux kernel before 5.1.7, a device can be tracked by an attacker using the IP ID values the kernel produces for connection-less protocols (e.g., UDP and ICMP). When such traffic is sent to multiple destination IP addresses, it is possible to obtain hash collisions (of indices to the counter array) and thereby obtain the hashing key (via enumeration). An attack may be conducted by hosting a crafted web page that uses WebRTC or gQUIC to force UDP traffic to attacker-controlled IP addresses.

CVSS Base Scores

version 3.1