LiveActive security incident?Get immediate response
CVE Record

CVE-2017-1085: In FreeBSD before 11.2-RELEASE, an application which calls setrlimit() to increase RLIMIT_STACK may turn a...

In FreeBSD before 11.2-RELEASE, an application which calls setrlimit() to increase RLIMIT_STACK may turn a read-only memory region below the stack into a read-write region. A specially crafted executable could be exploited to execute arbitrary code in the user context.

UnknownCVSS not scoredNot KEV-listedUpdated
Discuss exposureBack to CVEs
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

This FreeBSD flaw can let a specially crafted executable turn protected memory near the stack into writable memory, enabling code execution as the same user. Business urgency is highest for older FreeBSD systems that allow local users, shared hosting, or execution of untrusted binaries.

Executive priority

Treat this as a targeted legacy-platform risk. It is not listed as KEV in the provided data, but affected FreeBSD systems with local user execution paths should be remediated promptly, especially in shared or externally managed environments.

Technical view

FreeBSD before 11.2-RELEASE is affected. An application that increases RLIMIT_STACK through setrlimit() may change a read-only memory region below the stack into read-write memory. The CVE states this can be abused by a specially crafted executable to execute arbitrary code in the user context.

Likely exposure

Exposure is limited to FreeBSD installations before 11.2-RELEASE. Risk is higher where users can upload, compile, or run local executables, including shared systems, developer hosts, and legacy FreeBSD servers.

Exploitation context

The source bundle includes an Exploit-DB reference and a Qualys Stack Clash reference, but KEV is false and the provided sources do not establish active exploitation. The described impact is user-context code execution, not confirmed remote compromise or privilege escalation from these sources alone.

Researcher notes

Evidence supports FreeBSD before 11.2-RELEASE, setrlimit(), RLIMIT_STACK, memory protection change below the stack, and arbitrary code execution in user context. The bundle does not provide CVSS, CWE, confirmed active exploitation, or detailed vendor advisory text beyond the affected-version boundary.

Mitigation direction

  • Inventory FreeBSD hosts and identify versions before 11.2-RELEASE.
  • Upgrade affected systems to FreeBSD 11.2-RELEASE or later where feasible.
  • Check FreeBSD vendor guidance for any supported backported fixes.
  • Restrict execution of untrusted local binaries until remediation is complete.
  • Prioritize shared or multi-user FreeBSD systems first.

Validation and detection

  • Confirm each FreeBSD host version and patch level.
  • Flag any FreeBSD system reporting a version before 11.2-RELEASE.
  • Review whether untrusted users can run local executables on affected hosts.
  • Verify remediation by rechecking the operating system release after update.
  • Document unsupported legacy systems needing compensating controls.
Prepared
Confidence
high
Sources
4

Public sources used

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

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

description · low confidence lookup

Execution behavior lookup

The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2017-1085 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
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
3Source 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
FreeBSDFreeBSDbefore 11.2-RELEASEListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.