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Out-of-bounds Read Affecting kernel-debug package, versions <0:3.10.0-693.5.2.el7

Severity

 Recommended
high

Based on Red Hat Enterprise Linux security rating

    Threat Intelligence

    Exploit Maturity
    Mature
    EPSS
    0.39% (74th percentile)

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  • Snyk ID SNYK-RHEL7-KERNELDEBUG-4770673
  • published 26 Jul 2021
  • disclosed 23 Aug 2017
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Introduced: 23 Aug 2017

CVE-2017-7558 Open this link in a new tab
CWE-125 Open this link in a new tab

How to fix?

Upgrade RHEL:7 kernel-debug to version 0:3.10.0-693.5.2.el7 or higher.
This issue was patched in RHSA-2017:2930.

NVD Description

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

A kernel data leak due to an out-of-bound read was found in the Linux kernel in inet_diag_msg_sctp{,l}addr_fill() and sctp_get_sctp_info() functions present since version 4.7-rc1 through version 4.13. A data leak happens when these functions fill in sockaddr data structures used to export socket's diagnostic information. As a result, up to 100 bytes of the slab data could be leaked to a userspace.