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CVE Record

CVE-2016-8649: lxc-attach in LXC before 1.0.9 and 2.x before 2.0.6 allows an attacker inside of an unprivileged container...

lxc-attach in LXC before 1.0.9 and 2.x before 2.0.6 allows an attacker inside of an unprivileged container to use an inherited file descriptor, of the host's /proc, to access the rest of the host's filesystem via the openat() family of syscalls.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysis

Security readout for executives and security teams

This flaw affects older LXC container hosts. A person already inside an unprivileged container could abuse lxc-attach behavior to reach the host filesystem. That makes it a container isolation failure, not a normal remote internet attack. Business urgency is highest where LXC hosts run untrusted or multi-tenant workloads. Exposure is likely limited to hosts running affected LXC versions with unprivileged containers, especially where lxc-attach is used against containers containing untrusted users or workloads. Distribution packages may have backported fixes, so version strings alone may not prove exposure. Treat as high priority for container platforms that host untrusted workloads because it undermines isolation and may expose host files. If the organization does not run affected LXC versions, or vendor packages are confirmed fixed, priority drops to routine verification. Mitigation focus: Upgrade LXC to 1.0.9, 2.0.6, or a vendor-fixed backported package.; Check Debian, Ubuntu, Red Hat, and upstream LXC guidance for package-specific fix status.; Restrict lxc-attach use with untrusted containers until affected hosts are verified fixed..

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Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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CVE-2016-8649 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
6Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/aLXC before 1.0.9 and 2.x before 2.0.6LXC before 1.0.9 and 2.x before 2.0.6Listed
Weakness

CWE details

No CWE listed

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