CVE-2017-6949
chicken - security update
8.1
HIGH
CVSS 3.1
EPSS 0.22%
Description
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.
How to fix CVE-2017-6949
To remediate CVE-2017-6949, upgrade the affected package to a fixed version below.
- —upgrade to 4.12.0-0.2 or later
- —upgrade to 4.7.0-1+deb7u2 or later
Is CVE-2017-6949 being exploited?
Low — EPSS is 0.2%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 4.12.0-0.2
- from 0, < 4.7.0-1+deb7u2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.1 | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |