CVE-2019-15325 — In GalliumOS 3

In GalliumOS 3.0, CONFIG_SECURITY_YAMA is disabled but /etc/sysctl.d/10-ptrace.conf tries to set /proc/sys/kernel/yama/ptrace_scope to 1, which might increase risk because of the appearance that a protection mechanism is present when actually it is not.

01What is this vulnerability?

In GalliumOS 3.0, CONFIG_SECURITY_YAMA is disabled but /etc/sysctl.d/10-ptrace.conf tries to set /proc/sys/kernel/yama/ptrace_scope to 1, which might increase risk because of the appearance that a protection mechanism is present when actually it is not.

02Affected products

Vendor	Product	Versions
n	a / n/a	n/a

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2019-08-22T19:13:15.000Z
• Last modified: 2024-08-05T00:42:03.886Z

09References

• www.kernel.org — https://www.kernel.org/doc/Documentation/security/Yama.txt
• github.com — https://github.com/GalliumOS/galliumos-distro/issues/514