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Inadequate Encryption Strength Affecting kernel-uek-devel package, versions <0:4.14.35-1902.306.2.el7uek

Severity

 Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.43% (76th percentile)

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  • Snyk IDSNYK-ORACLE7-KERNELUEKDEVEL-2577813
  • published10 Apr 2022
  • disclosed5 Jul 2019
Report a new vulnerability Found a mistake?

Introduced: 5 Jul 2019

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

How to fix?

Upgrade Oracle:7 kernel-uek-devel to version 0:4.14.35-1902.306.2.el7uek or higher.
This issue was patched in ELSA-2020-5845.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-uek-devel package and not the kernel-uek-devel package as distributed by Oracle. See How to fix? for Oracle:7 relevant fixed versions and status.

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.

References