CVE-2021-3999
High
Description
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.
SeverityHigh
CVSS7.8
Exploit probability—
Product
Gnu Glibc
PublishedAug 24, 2022
First seenAug 24, 2022
Weakness typeCWE-193CWE-193
How to fix
Update
- gnu glibc2.31 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| gnu glibc | v < 2.31 | 2.31 |
| debian debian_linux | 10.0, 11.0 | — |
| netapp e-series_performance_analyzer | No range specified | — |
| netapp nfs_plug-in | No range specified | — |
| netapp ontap_select_deploy_administration_utility | No range specified | — |
| netapp h300s_firmware | No range specified | — |
| netapp h500s_firmware | No range specified | — |
| netapp h700s_firmware | No range specified | — |
| netapp h410s_firmware | No range specified | — |
| netapp h410c_firmware | No range specified | — |
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