Security readout for executives and security teams
This is an old Linux kernel information-disclosure flaw. A local user could run a crafted application that causes the TUN/TAP network driver ioctl path to return data from kernel stack memory. The sources do not show remote exploitation or active exploitation. Exposure is most plausible on legacy Linux systems running kernels before 3.6 or vendor kernels that did not receive the referenced backport. Shared servers, multi-user systems, and hosts allowing untrusted local workloads carry higher practical risk. Treat this as a legacy Linux hygiene issue, not an emergency internet-facing exposure. Patch or retire affected kernels, especially on shared systems where local users or workloads are not fully trusted. Mitigation focus: Identify Linux systems running kernels before 3.6 or unverified vendor backports.; Apply vendor kernel updates from supported distributions where available.; Verify kernels include the upstream fix commit a117dacde0288f3ec60b6e5bcedae8fa37ee0dfc..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
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
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CVE-2012-6547 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/torvalds/linux/commit/a117dacde0288f3ec60b6e5bcedae8fa37ee0dfcCVE reference · x_refsource_CONFIRM
- https://www.kernel.org/pub/linux/kernel/v3.x/patch-3.6.bz2CVE reference · x_refsource_CONFIRM
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.