Heap-based Buffer Overflow Affecting kernel-rt-trace package, versions <0:3.10.0-514.26.1.rt56.442.el7


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.07% (32nd percentile)

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  • Snyk IDSNYK-RHEL7-KERNELRTTRACE-4699372
  • published26 Jul 2021
  • disclosed24 Apr 2017

Introduced: 24 Apr 2017

CVE-2017-7477  (opens in a new tab)
CWE-122  (opens in a new tab)
First added by Snyk

How to fix?

Upgrade RHEL:7 kernel-rt-trace to version 0:3.10.0-514.26.1.rt56.442.el7 or higher.
This issue was patched in RHSA-2017:1616.

NVD Description

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

Heap-based buffer overflow in drivers/net/macsec.c in the MACsec module in the Linux kernel through 4.10.12 allows attackers to cause a denial of service or possibly have unspecified other impact by leveraging the use of a MAX_SKB_FRAGS+1 size in conjunction with the NETIF_F_FRAGLIST feature, leading to an error in the skb_to_sgvec function.

CVSS Scores

version 3.1