CVE-2021-43411

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Summary

CVECVE-2021-43411
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-11-07 18:15:00 UTC
Updated2023-11-07 03:39:00 UTC
DescriptionAn issue was discovered in GNU Hurd before 0.9 20210404-9. When trying to exec a setuid executable, there's a window of time when the process already has the new privileges, but still refers to the old task and is accessible through the old process port. This can be exploited to get full root access.

Risk And Classification

Problem Types: CWE-362

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Gnu Hurd All All All All

References

ReferenceSourceLinkTags
How do I disclose a vulnerability? MISC lists.gnu.org
[VULN 3/4] setuid exec race www.mail-archive.com
[VULN 3/4] setuid exec race MISC www.mail-archive.com
debian/patches/0034-proc-Use-UIDs-for-evaluating-permissions.patch · 4d1b079411e2f40576e7b58f9b5b78f733a2beda · Maintaining of the Hurd / hurd · GitLab MISC salsa.debian.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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