CVE-2020-6080

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].
References
Link Resource
https://talosintelligence.com/vulnerability_reports/TALOS-2020-1002 Exploit Technical Description Third Party Advisory
https://www.debian.org/security/2020/dsa-4671 Third Party Advisory
https://security.gentoo.org/glsa/202005-10 Third Party Advisory
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Configurations

Configuration 1 (hide)

cpe:2.3:a:videolabs:libmicrodns:0.1.0:*:*:*:*:*:*:*

Configuration 2 (hide)

OR cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

Information

Published : 2020-03-24 14:15

Updated : 2022-04-22 12:06


NVD link : CVE-2020-6080

Mitre link : CVE-2020-6080


JSON object : View

CWE
CWE-401

Missing Release of Memory after Effective Lifetime

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Products Affected

videolabs

  • libmicrodns

debian

  • debian_linux