Resource Exhaustion The advisory has been revoked - it doesn't affect any version of package libmicrodns  (opens in a new tab)


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EPSS
2.44% (83rd percentile)

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  • Snyk IDSNYK-DEBIAN10-LIBMICRODNS-561199
  • published26 Mar 2020
  • disclosed24 Mar 2020

Introduced: 24 Mar 2020

CVE-2020-6080  (opens in a new tab)
CWE-400  (opens in a new tab)

Amendment

The Debian security team deemed this advisory irrelevant for Debian:10.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libmicrodns package and not the libmicrodns package as distributed by Debian.

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].