CVE-2020-6080 PUBLISHED

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].

EPSS 0.31% · 54.1th percentile

Risk Scores

EPSS Score
0.31%
54.1th percentile

Affected Products

VendorProductVersions
Ubuntu:Pro:18.04:LTSlibmicrodns0, 0.0.7-2, 0.0.8-1
Ubuntu:Pro:18.04:LTSvlc0, 2.2.6-6, 2.2.6-6build1

Timeline

References

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