CVE-2012-6124
CVE-2012-6124 is a medium-severity vulnerability in Call-cc Chicken with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-338.
Key facts
- Severity: Medium (CVSS 3.x base score 5.3)
- CVSS v2: 5.0
- EPSS exploit prediction: 1% (66th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-338
- Affected product: Call-cc Chicken
- Published:
- Last modified:
Description
A casting error in Chicken before 4.8.0 on 64-bit platform caused the random number generator to return a constant value. NOTE: the vendor states "This function wasn't used for security purposes (and is advertised as being unsuitable)."
Frequently asked questions
- What is CVE-2012-6124?
- A casting error in Chicken before 4.8.0 on 64-bit platform caused the random number generator to return a constant value. NOTE: the vendor states "This function wasn't used for security purposes (and is advertised as being unsuitable)."
- How severe is CVE-2012-6124?
- CVE-2012-6124 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
- Is CVE-2012-6124 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2012-6124?
- CVE-2012-6124 affects Call-cc Chicken. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2012-6124?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2012-6124 published?
- CVE-2012-6124 was published on 2019-10-31 and last updated on 2026-06-16.
References
- http://www.openwall.com/lists/oss-security/2013/02/08/2
- https://access.redhat.com/security/cve/cve-2012-6124
- https://lists.nongnu.org/archive/html/chicken-hackers/2012-02/msg00084.html
- https://security-tracker.debian.org/tracker/CVE-2012-6124
Affected products (1)
- cpe:2.3:a:call-cc:chicken:*:*:*:*:*:*:x64:*
More vulnerabilities in Call-cc Chicken
- CVE-2022-45145 — Critical (CVSS 9.8): egg-compile.scm in CHICKEN 5.x before 5.3.1 allows arbitrary OS command execution during package installation via…
- CVE-2014-6310 — Critical (CVSS 9.8): Buffer overflow in CHICKEN 4.9.0 and 4.9.0.1 may allow remote attackers to execute arbitrary code via the 'select'…
- CVE-2012-6125 — Critical (CVSS 9.8): Chicken before 4.8.0 is susceptible to algorithmic complexity attacks related to hash table collisions.
- CVE-2016-6830 — Critical (CVSS 9.8): The "process-execute" and "process-spawn" procedures in CHICKEN Scheme used fixed-size buffers for holding the…
- CVE-2013-2075 — High (CVSS 8.8): Multiple buffer overflows in the (1) R5RS char-ready, (2) tcp-accept-ready, and (3) file-select procedures in Chicken…
- CVE-2013-2024 — High (CVSS 8.8): OS command injection vulnerability in the "qs" procedure from the "utils" module in Chicken before 4.9.0.
All CVEs affecting Call-cc Chicken →
Other CWE-338 vulnerabilities
- CVE-2026-56141 — Critical (CVSS 9.8): In JetBrains Hub before 2026.1.13757, 2025.3.148033, 2025.2.148048, 2025.1.148120, 2024.3.148430, 2024.2.148429 account…
- CVE-2026-3256 — Critical (CVSS 9.8): HTTP::Session versions before 0.54 for Perl defaults to using insecurely generated session ids. HTTP::Session defaults…
- CVE-2025-15604 — Critical (CVSS 9.8): Amon2 versions before 6.17 for Perl use an insecure random_string implementation for security functions. In versions…
- CVE-2025-40926 — Critical (CVSS 9.8): Plack::Middleware::Session::Simple versions before 0.05 for Perl generates session ids insecurely. The default session…
- CVE-2026-2439 — Critical (CVSS 9.8): Concierge::Sessions versions from 0.8.1 before 0.8.5 for Perl generate insecure session ids. The generate_session_id…
- CVE-2025-15578 — Critical (CVSS 9.8): Maypole versions from 2.10 through 2.13 for Perl generates session ids insecurely. The session id is seeded with the…