CVE-2021-3999
A flaw was found in glibc. An off-by-one buffer overflow and underflow in getcwd() may lead to memory corruption when the size of the buffer is exactly 1. A local attacker who can control the input buffer and size passed to getcwd() in a setuid program could use this flaw to potentially execute arbitrary code and escalate their privileges on the system.
- Affected products
- Alt Linux, Almalinux, Astra Linux, Centos, Linuxmint, Red Hat, Red Os, Rocky Linux
- Gnu Glibc
- < 2.31
- CVSS 3.1
- 7.8 HIGH
- EPSS
- 0.7% (51th percentile)
- Weakness
- CWE-193
- NVD status
- Modified
- Published
- 2022-08-24
CVE-2021-3999 at NVD
No indexed exploits for CVE-2021-3999 yet
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No exploit for CVE-2021-3999 has been indexed yet. Our index is built from live traffic and upstream syncs, so this page can only say what it knows — not that no exploit exists.