CVE-2021-3998
glibc: A flaw was found in glibc
CVE-2021-3998 is fixed in glibc on 1 platform, first by DEBIAN-CVE-2021-3998, released August 24, 2022. It is not reported as exploited. Patch Radar priority: High.
High
CVSS
7.5
high
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0220
82nd percentile
A flaw was found in glibc. The realpath() function can mistakenly return an unexpected value, potentially leading to information leakage and disclosure of sensitive data.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| glibc · Debian 12.15 (bookworm) | 2.33-4 | DEBIAN-CVE-2021-3998 | Aug 24, 2022 |
| glibc · Debian 13.5 (trixie) | 2.33-4 | DEBIAN-CVE-2021-3998 | Aug 24, 2022 |
| glibc · Debian 14 | 2.33-4 | DEBIAN-CVE-2021-3998 | Aug 24, 2022 |
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