What’s Vulnerable › Vulnerabilities

CVE-2017-11343

• Severity: high (CVSS 7.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2017-07-17 · updated 2026-06-17
• Weakness: CWE-407

Description

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.

Affected products

• chicken: through 4.12.0

References

• http://lists.gnu.org/archive/html/chicken-announce/2017-07/msg00000.html
• http://lists.gnu.org/archive/html/chicken-announce/2017-07/msg00000.html

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