CVE catalog

CVE-2017-11343

chicken: CVE-2017-11343

Severity: Medium
Published: Jul 17, 2017, 1:18:00 PM UTC
Source: [NVD] · [CVE record]
EPSS: 0.94% · Oct 25, 2026

Due to an incomplete fix for CVE-2012-6125, all versions of CHICKEN Scheme up to and including 4.12.0 are vulnerable to an algorithmic complexity attack. An attacker can provide crafted input which, when inserted into the symbol table, will result in O(n) lookup time.

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`	not yet assigned	Not reported	[870266]
Debian	chicken	source	forky	`4.12.0-0.2`	not yet assigned	Not reported	[870266]
Debian	chicken	source	trixie	`4.12.0-0.2`	not yet assigned	Not reported	[870266]
Debian	chicken	source	bookworm	`4.12.0-0.2`	not yet assigned	Not reported	[870266]

[Debian bug #870266]

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, 5:25:43 PM UTC

References

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