Buffer overflow in Call-Cc Chicken
CVE-2017-6949
An issue was discovered in CHICKEN Scheme through 4.12.0. When using a nonstandard CHICKEN-specific extension to allocate an SRFI-4 vector in unmanaged memory, the vector size would be used in unsanitised form as an argument to malloc(). With an unexpected size, the impact may have been a segfault or buffer overflow.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.015 (72.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 73rd percentile — 72.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.015 · newest: 0.015 · change: 0.000
Affected products
- Call-Cc Chicken — versions 4.12.0
Weakness classification (CWE)
References
- www.securityfocus.com/bid/97317 (vdb-entry)
- lists.gnu.org/archive/html/chicken-announce/2017-03/msg00000.html (Patch, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2017-6949?
- CVE-2017-6949 is a high-severity vulnerability in Call-Cc Chicken, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 8.1/10. Published 2017-03-16.
- How severe is CVE-2017-6949?
- High severity. CVSS v3 base score is 8.1 out of 10.