CVE-2021-43411

CWE-362 — Race ConditionCWE-863 — Incorrect Authorization4 documents4 sources
Severity
7.5HIGH
EPSS
0.5%
top 36.21%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
1
GNU Hurd
Timeline
PublishedNov 7
Latest updateMay 24

Description

An 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.

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.6 | Impact: 5.9

Affected Packages1 packages

▶NVDgnu/hurd< 0.9.20210404-9

Patches

Patch: salsa.debian.org ↗Patch: salsa.debian.org ↗

🔴Vulnerability Details

2
GHSA
GHSA-gm4g-p4jj-grph: An issue was discovered in GNU Hurd before 0↗2022-05-24
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CVEList
CVE-2021-43411: An issue was discovered in GNU Hurd before 0↗2021-11-07
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📋Vendor Advisories

1
Debian
CVE-2021-43411: hurd - An issue was discovered in GNU Hurd before 0.9 20210404-9. When trying to exec a...↗2021
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