CVE catalog

CVE-2017-9107

adns: CVE-2017-9107

Severity: High · CVSS 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published: Jan 1, 2017, 12:00:00 AM UTC
Source: [NVD] · [CVE record]
EPSS: 1.85% · Oct 27, 2026

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.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	adns	sid	`1.7.0-2`	fixed
Debian	adns	forky	`1.7.0-2`	fixed
Debian	adns	trixie	`1.6.1-1`	fixed
Debian	adns	bookworm	`1.6.0-2`	fixed
Ubuntu	adns	16.04	`1.5.0~rc1-1ubuntu1`	vulnerable
Ubuntu	adns	18.04	`1.5.0~rc1-1ubuntu1`	vulnerable
Ubuntu	adns	18.04	`1.5.0~rc1-1.1ubuntu1`	vulnerable
Ubuntu	adns	20.04	`1.5.1-0.1`	vulnerable

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	adns	source	sid	`1.6.0-2`	unimportant	Not reported	Not reported
Debian	adns	source	forky	`1.6.0-2`	unimportant	Not reported	Not reported
Debian	adns	source	trixie	`1.6.0-2`	unimportant	Not reported	Not reported
Debian	adns	source	bookworm	`1.6.0-2`	unimportant	Not reported	Not reported

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[adns-tools]Fixed
Source package: [adns]
Details (2)
- 1.6.0-2 · amd64 · bookworm
  Fixed · Fixed: 1.6.0-2
  dsa · adns · debian · bookworm; dsa · adns · debian · 12
- 1.6.0-2 · arm64 · bookworm
  Fixed · Fixed: 1.6.0-2
  dsa · adns · debian · bookworm; dsa · adns · debian · 12
[libadns1]Fixed
Source package: [adns]
Details (2)
- 1.6.0-2 · amd64 · bookworm
  Fixed · Fixed: 1.6.0-2
  dsa · adns · debian · bookworm; dsa · adns · debian · 12
- 1.6.0-2 · arm64 · bookworm
  Fixed · Fixed: 1.6.0-2
  dsa · adns · debian · bookworm; dsa · adns · debian · 12
[libadns1-dbg]Fixed
Source package: [adns]
Details (2)
- 1.6.0-2 · amd64 · bookworm
  Fixed · Fixed: 1.6.0-2
  dsa · adns · debian · bookworm; dsa · adns · debian · 12
- 1.6.0-2 · arm64 · bookworm
  Fixed · Fixed: 1.6.0-2
  dsa · adns · debian · bookworm; dsa · adns · debian · 12
[libadns1-dev]Fixed
Source package: [adns]
Details (2)
- 1.6.0-2 · amd64 · bookworm
  Fixed · Fixed: 1.6.0-2
  dsa · adns · debian · bookworm; dsa · adns · debian · 12
- 1.6.0-2 · arm64 · bookworm
  Fixed · Fixed: 1.6.0-2
  dsa · adns · debian · bookworm; dsa · adns · debian · 12

[Debian 13 (Trixie)]

[adns-tools]Fixed
Source package: [adns]
Details (2)
- 1.6.1-1 · amd64 · trixie
  Fixed · Fixed: 1.6.0-2
  dsa · adns · debian · 13
- 1.6.1-1+b1 · arm64 · trixie
  Fixed · Fixed: 1.6.0-2
  dsa · adns · debian · 13
[libadns1-dbg]Fixed
Source package: [adns]
Details (2)
- 1.6.1-1 · amd64 · trixie
  Fixed · Fixed: 1.6.0-2
  dsa · adns · debian · 13
- 1.6.1-1+b1 · arm64 · trixie
  Fixed · Fixed: 1.6.0-2
  dsa · adns · debian · 13
[libadns1-dev]Fixed
Source package: [adns]
Details (2)
- 1.6.1-1 · amd64 · trixie
  Fixed · Fixed: 1.6.0-2
  dsa · adns · debian · 13
- 1.6.1-1+b1 · arm64 · trixie
  Fixed · Fixed: 1.6.0-2
  dsa · adns · debian · 13
[libadns1t64]Fixed
Source package: [adns]
Details (2)
- 1.6.1-1 · amd64 · trixie
  Fixed · Fixed: 1.6.0-2
  dsa · adns · debian · 13
- 1.6.1-1+b1 · arm64 · trixie
  Fixed · Fixed: 1.6.0-2
  dsa · adns · debian · 13

Observed: Oct 23, 2026, 5:31:50 PM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]