Description
An exploitable denial-of-service vulnerability exists in the resource allocation handling of Videolabs libmicrodns 0.1.0. When encountering errors while parsing mDNS messages, some allocated data is not freed, possibly leading to a denial-of-service condition via resource exhaustion. An attacker can send one mDNS message repeatedly to trigger this vulnerability through the function rr_read_RR [5] reads the current resource record, except for the RDATA section. This is read by the loop at in rr_read. For each RR type, a different function is called. When the RR type is 0x10, the function rr_read_TXT is called at [6].
Published: 2020-03-24
Score: 7.5 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
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Remediation

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Tracking

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Advisories
Source ID Title
Debian DSA Debian DSA DSA-4671-1 vlc security update
EUVD EUVD EUVD-2020-27234 An exploitable denial-of-service vulnerability exists in the resource allocation handling of Videolabs libmicrodns 0.1.0. When encountering errors while parsing mDNS messages, some allocated data is not freed, possibly leading to a denial-of-service condition via resource exhaustion. An attacker can send one mDNS message repeatedly to trigger this vulnerability through the function rr_read_RR [5] reads the current resource record, except for the RDATA section. This is read by the loop at in rr_read. For each RR type, a different function is called. When the RR type is 0x10, the function rr_read_TXT is called at [6].
Ubuntu USN Ubuntu USN USN-7239-1 libmicrodns vulnerabilities
History

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Subscriptions

Debian Debian Linux
Videolabs Libmicrodns
cve-icon MITRE

Status: PUBLISHED

Assigner: talos

Published:

Updated: 2024-08-04T08:47:40.959Z

Reserved: 2020-01-07T00:00:00.000Z

Link: CVE-2020-6080

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2020-03-24T21:15:14.473

Modified: 2024-11-21T05:35:03.363

Link: CVE-2020-6080

cve-icon Redhat

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cve-icon OpenCVE Enrichment

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Weaknesses