CVE catalog

CVE-2017-9334

chicken: CVE-2017-9334

Severity: Medium
Published: Jun 1, 2017, 5:29:00 AM UTC
Source: [NVD] · [CVE record]
EPSS: 1.55% · Oct 25, 2026

An incorrect "pair?" check in the Scheme "length" procedure results in an unsafe pointer dereference in all CHICKEN Scheme versions prior to 4.13, which allows an attacker to cause a denial of service by passing an improper list to an application that calls "length" on it.

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	chicken	sid	`5.3.0-2`	fixed
Debian	chicken	forky	`5.3.0-2`	fixed
Debian	chicken	trixie	`5.3.0-2`	fixed
Debian	chicken	bookworm	`5.3.0-1`	fixed
Ubuntu	chicken	16.04	`4.9.0.1-1`	vulnerable

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	chicken	source	sid	`4.12.0-0.2`	low	Not reported	[863884]
Debian	chicken	source	forky	`4.12.0-0.2`	low	Not reported	[863884]
Debian	chicken	source	trixie	`4.12.0-0.2`	low	Not reported	[863884]
Debian	chicken	source	bookworm	`4.12.0-0.2`	low	Not reported	[863884]

[Debian bug #863884]

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[chicken-bin]Fixed
Source package: [chicken]
Details (2)
- 5.3.0-1 · amd64 · bookworm
  Fixed · Fixed: 4.12.0-0.2
  dsa · chicken · debian · bookworm; dsa · chicken · debian · 12
- 5.3.0-1 · arm64 · bookworm
  Fixed · Fixed: 4.12.0-0.2
  dsa · chicken · debian · bookworm; dsa · chicken · debian · 12
[libchicken11]Fixed
Source package: [chicken]
Details (2)
- 5.3.0-1 · amd64 · bookworm
  Fixed · Fixed: 4.12.0-0.2
  dsa · chicken · debian · bookworm; dsa · chicken · debian · 12
- 5.3.0-1 · arm64 · bookworm
  Fixed · Fixed: 4.12.0-0.2
  dsa · chicken · debian · bookworm; dsa · chicken · debian · 12
[libchicken-dev]Fixed
Source package: [chicken]
Details (2)
- 5.3.0-1 · amd64 · bookworm
  Fixed · Fixed: 4.12.0-0.2
  dsa · chicken · debian · bookworm; dsa · chicken · debian · 12
- 5.3.0-1 · arm64 · bookworm
  Fixed · Fixed: 4.12.0-0.2
  dsa · chicken · debian · bookworm; dsa · chicken · debian · 12

[Debian 13 (Trixie)]

[chicken-bin]Fixed
Source package: [chicken]
Details (2)
- 5.3.0-2 · amd64 · trixie
  Fixed · Fixed: 4.12.0-0.2
  dsa · chicken · debian · 13
- 5.3.0-2+b1 · arm64 · trixie
  Fixed · Fixed: 4.12.0-0.2
  dsa · chicken · debian · 13
[libchicken11t64]Fixed
Source package: [chicken]
Details (2)
- 5.3.0-2 · amd64 · trixie
  Fixed · Fixed: 4.12.0-0.2
  dsa · chicken · debian · 13
- 5.3.0-2+b1 · arm64 · trixie
  Fixed · Fixed: 4.12.0-0.2
  dsa · chicken · debian · 13
[libchicken-dev]Fixed
Source package: [chicken]
Details (2)
- 5.3.0-2 · amd64 · trixie
  Fixed · Fixed: 4.12.0-0.2
  dsa · chicken · debian · 13
- 5.3.0-2+b1 · arm64 · trixie
  Fixed · Fixed: 4.12.0-0.2
  dsa · chicken · debian · 13

Observed: Oct 23, 2026, 5:31:55 PM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database]