High severity · published Jul 17, 2017
CVE-2017-11343
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
7.5
CVSS
0.9%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 61% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CH
Chicken · Call-cc
through 4.12.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-11343
CVE.org
https://www.cve.org/CVERecord?id=CVE-2017-11343
Vendor Advisory
http://lists.gnu.org/archive/html/chicken-announce/2017-07/msg00000.html
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