CVE-2017-9334: 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…

PriorityP433high7.5CVSS 3.1

AVNACLPRNUINSUCNINAH

EPSS

1.54%

72.4th percentile

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.

Affected

6 ranges

Vendor	Product	Version range	Fixed in
call-cc	chicken	<= 4.12.0	—
chicken	chicken	>= 0 < 4.12.0-0.2	4.12.0-0.2
chicken	chicken	>= 0 < 4.12.0-0.2	4.12.0-0.2
chicken	chicken	>= 0 < 4.12.0-0.2	4.12.0-0.2
chicken	chicken	>= 0 < 4.12.0-0.2	4.12.0-0.2
debian	chicken	< chicken 4.12.0-0.2 (bookworm)	chicken 4.12.0-0.2 (bookworm)

CVSS provenance

nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P

osv7.5HIGH

vendor_debian7.5LOW

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