What happened
The Linux kernel before 5.18.13 lacks a certain clear operation for the block starting symbol (.bss). This allows Xen PV guest OS users to cause a denial of service or gain privileges.
Affected versions
n/a: n/a; before V1.1 (custom); before V2.17.0 (custom) Fixed: See vendor advisory.
Why it matters
Review the vendor advisory and exposure of the affected product to determine operational impact.
Detection & mitigation
- Apply vendor-provided updates or mitigations.
- Review affected product exposure and access logs.
Public PoC references
RepositoryAuthorFirst seenReference
github.comNVD reference2022-07-29Verifiedsick.codesNVD reference2022-07-29VerifiedSource timeline
CVE record published by NVDView source ↗
Record history
Record created from the first normalized source observation.
Metadata and source references refreshed.