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Use After Free Affecting kernel-rt package, versions <0:3.10.0-229.1.2.rt56.141.2.el7_1

Severity

 Recommended
high

Based on Red Hat Enterprise Linux security rating

    Threat Intelligence

    EPSS
    5.34% (94th percentile)

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  • Snyk ID SNYK-RHEL7-KERNELRT-4522212
  • published 26 Jul 2021
  • disclosed 22 Jan 2015
Report a new vulnerability Found a mistake?

Introduced: 22 Jan 2015

CVE-2015-1421 Open this link in a new tab
CWE-416 Open this link in a new tab

How to fix?

Upgrade RHEL:7 kernel-rt to version 0:3.10.0-229.1.2.rt56.141.2.el7_1 or higher.
This issue was patched in RHSA-2015:0727.

NVD Description

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

Use-after-free vulnerability in the sctp_assoc_update function in net/sctp/associola.c in the Linux kernel before 3.18.8 allows remote attackers to cause a denial of service (slab corruption and panic) or possibly have unspecified other impact by triggering an INIT collision that leads to improper handling of shared-key data.

References

CVSS Scores

version 3.1
Expand this section

NVD

9.8 critical
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    High
  • Availability (A)
    High
Expand this section

Red Hat

6.5 medium