Security readout for executives and security teams
CVE-2013-4563 is a Linux kernel denial-of-service issue. A large IPv6 UDP packet can trigger a kernel panic when UDP Fragmentation Offload is enabled, especially in the documented TBF queueing scenario. The main business risk is unexpected outage of affected Linux systems, not data theft. Exposure is most plausible on older Linux systems or vendor kernels that include the vulnerable udp6_ufo_fragment behavior, have IPv6 reachable, and use UFO-capable networking. The source bundle lists Linux through 3.12 but does not provide complete distribution package matrices. Treat this as a targeted availability risk for legacy or unpatched Linux infrastructure. Prioritize exposed network appliances, gateways, and servers where a panic would interrupt business operations. Modern supported kernels are likely already fixed, but legacy inventory should be verified. Mitigation focus: Apply vendor kernel updates or a kernel containing upstream commit 0e033e04c2678dbbe74a46b23fffb7bb918c288e.; Check Ubuntu and openSUSE advisories for distribution-specific fixed packages.; For unsupported systems, consult vendor guidance before relying on configuration workarounds..
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
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ATT&CK lookup starting points
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Credential and access behavior lookup
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Open ATT&CK lookupCVE-2013-4563 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
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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/0e033e04c2678dbbe74a46b23fffb7bb918c288eCVE reference · x_refsource_CONFIRM
- https://bugzilla.redhat.com/show_bug.cgi?id=1030015CVE 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.