Heap-based Buffer Overflow Affecting kernel-zfcpdump-devel package, versions <0:4.18.0-80.11.1.el8_0


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating

    Threat Intelligence

    EPSS
    0.68% (81st percentile)

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  • Snyk ID SNYK-RHEL8-KERNELZFCPDUMPDEVEL-4375632
  • published 26 Jul 2021
  • disclosed 19 Feb 2019

How to fix?

Upgrade RHEL:8 kernel-zfcpdump-devel to version 0:4.18.0-80.11.1.el8_0 or higher.
This issue was patched in RHSA-2019:2703.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-zfcpdump-devel package and not the kernel-zfcpdump-devel package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

The Broadcom brcmfmac WiFi driver prior to commit 1b5e2423164b3670e8bc9174e4762d297990deff is vulnerable to a heap buffer overflow. If the Wake-up on Wireless LAN functionality is configured, a malicious event frame can be constructed to trigger an heap buffer overflow in the brcmf_wowl_nd_results function. This vulnerability can be exploited with compromised chipsets to compromise the host, or when used in combination with CVE-2019-9503, can be used remotely. In the worst case scenario, by sending specially-crafted WiFi packets, a remote, unauthenticated attacker may be able to execute arbitrary code on a vulnerable system. More typically, this vulnerability will result in denial-of-service conditions.

CVSS Scores

version 3.1
Expand this section

NVD

8.3 high
  • Attack Vector (AV)
    Adjacent
  • Attack Complexity (AC)
    High
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Changed
  • Confidentiality (C)
    High
  • Integrity (I)
    High
  • Availability (A)
    High