CVE-2023-53543: vdpa: Add max vqp attr to vdpa_nl_policy for nlattr length check
CSIRTS triage
- What
- VDPA netlink policy lacks length validation for max_vqp attribute allowing out-of-bounds access.
- Who is affected
- Systems using vDPA devices with netlink configuration.
- Urgency
- High severity; CVSS 7.8 indicates significant impact through malformed netlink messages.
- Action
- Update kernel to include max_vqp length check in vdpa_nl_policy.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-53543
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2023-535430.15% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 5% of all EPSS-scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2023-53543 | coverage & exploitation status | NVD · CVE.org |
Same CVEs, other sources
How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.