CVE-2021-3999
Severity
7.8HIGH
EPSS
0.8%
top 25.15%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedAug 24
Latest updateMay 2
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.8 | Impact: 5.9
🔴Vulnerability Details
4📋Vendor Advisories
6Microsoft▶
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 bu↗2022-08-09