Information disclosure in Freebsd
CVE-2018-17155
In FreeBSD before 11.2-STABLE(r338983), 11.2-RELEASE-p4, 11.1-RELEASE-p15, 10.4-STABLE(r338984), and 10.4-RELEASE-p13, due to insufficient initialization of memory copied to userland in the getcontext and swapcontext system calls, small amounts of kernel memory may be disclosed to userland processes. Unprivileged authenticated local users may be able to access small amounts privileged kernel data.
Vulnerability class: Information Disclosure
EPSS: 0.004 (29.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
Affected products
- Freebsd — versions 10.x before 10.4-RELEASE-p13, 11.2 before 11.2-RELEASE-p4, 11.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- secteam@freebsd.org (x_refsource_CONFIRM, Patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2018-17155?
- CVE-2018-17155 is a medium-severity vulnerability in Freebsd, classified under Information Disclosure. CVSS score: 5.5/10. Published 2018-09-28.
- How severe is CVE-2018-17155?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2018-17155 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.