NULL Pointer Dereference Affecting vlc package, versions <3.0.9.2-r0


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.25% (66th percentile)

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  • Snyk IDSNYK-ALPINE321-VLC-8490062
  • published6 Dec 2024
  • disclosed24 Mar 2020

Introduced: 24 Mar 2020

CVE-2020-6078  (opens in a new tab)
CWE-476  (opens in a new tab)
CWE-252  (opens in a new tab)

How to fix?

Upgrade Alpine:3.21 vlc to version 3.0.9.2-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream vlc package and not the vlc package as distributed by Alpine. See How to fix? for Alpine:3.21 relevant fixed versions and status.

An exploitable denial-of-service vulnerability exists in the message-parsing functionality of Videolabs libmicrodns 0.1.0. When parsing mDNS messages in mdns_recv, the return value of the mdns_read_header function is not checked, leading to an uninitialized variable usage that eventually results in a null pointer dereference, leading to service crash. An attacker can send a series of mDNS messages to trigger this vulnerability.

CVSS Scores

version 3.1