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Out-of-bounds Write Affecting kernel-uek-debug package, versions <0:2.6.39-400.304.1.el5uek

Severity

 Recommended
0.0
high
0
10

Based on Oracle Linux security rating

    Threat Intelligence

    EPSS
    0.04% (11th percentile)

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  • Snyk ID SNYK-ORACLE5-KERNELUEKDEBUG-2533760
  • published 10 Apr 2022
  • disclosed 20 Dec 2017
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Introduced: 20 Dec 2017

CVE-2017-17806 Open this link in a new tab
CWE-787 Open this link in a new tab

How to fix?

Upgrade Oracle:5 kernel-uek-debug to version 0:2.6.39-400.304.1.el5uek or higher.
This issue was patched in ELSA-2018-4301.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-uek-debug package and not the kernel-uek-debug package as distributed by Oracle. See How to fix? for Oracle:5 relevant fixed versions and status.

The HMAC implementation (crypto/hmac.c) in the Linux kernel before 4.14.8 does not validate that the underlying cryptographic hash algorithm is unkeyed, allowing a local attacker able to use the AF_ALG-based hash interface (CONFIG_CRYPTO_USER_API_HASH) and the SHA-3 hash algorithm (CONFIG_CRYPTO_SHA3) to cause a kernel stack buffer overflow by executing a crafted sequence of system calls that encounter a missing SHA-3 initialization.

References

CVSS Scores

version 3.1
Expand this section

NVD

7.8 high
Expand this section

Red Hat

5.5 medium