Out-of-Bounds Affecting adns package, versions *


Severity

Recommended
low

Based on Debian security rating.

Threat Intelligence

EPSS
0.25% (65th percentile)

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  • Snyk IDSNYK-DEBIAN9-ADNS-572065
  • published11 Jun 2020
  • disclosed18 Jun 2020

Introduced: 11 Jun 2020

CVE-2017-9107  (opens in a new tab)
CWE-119  (opens in a new tab)

How to fix?

There is no fixed version for Debian:9 adns.

NVD Description

Note: Versions mentioned in the description apply only to the upstream adns package and not the adns package as distributed by Debian. See How to fix? for Debian:9 relevant fixed versions and status.

An issue was discovered in adns before 1.5.2. It overruns reading a buffer if a domain ends with backslash. If the query domain ended with , and adns_qf_quoteok_query was specified, qdparselabel would read additional bytes from the buffer and try to treat them as the escape sequence. It would depart the input buffer and start processing many bytes of arbitrary heap data as if it were the query domain. Eventually it would run out of input or find some other kind of error, and declare the query domain invalid. But before then it might outrun available memory and crash. In principle this could be a denial of service attack.

CVSS Scores

version 3.1