Buffer overflow in the "read-string!" procedure in the "extras" unit in CHICKEN stable before 22.214.171.124 and development snapshots before 4.8.3 allows remote attackers to cause a denial of service (memory corruption and application crash) and possibly execute arbitrary code via a "#f" value in the NUM argument.
CVSS Severity (version 2.0):
Impact Subscore: 6.4
Exploitability Subscore: 10.0
CVSS Version 2 Metrics:
Access Vector: Network exploitable
Access Complexity: Low
Authentication: Not required to exploit
Impact Type: Allows unauthorized disclosure of information; Allows unauthorized modification; Allows disruption of service
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[chicken-announce] 20131003 Chicken 126.96.36.199 released
[chicken-announce] 20130926 [SECURITY] Buffer overrun in some uses of read-string! procedure from "extras"
[chicken-announce] 20130927 Re: [SECURITY] Buffer overrun in some uses of read-string! procedure from "extras"