CVE-2021-3999
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.8epss 0.7%
exploitation probability
0.7%top 47% of all CVEs
observed exploitation
nono source reports it
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:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products
n/a · glibcReferences
https://access.redhat.com/security/cve/CVE-2021-3999https://bugzilla.redhat.com/show_bug.cgi?id=2024637https://lists.debian.org/debian-lts-announce/2022/10/msg00021.htmlhttps://security.netapp.com/advisory/ntap-20221104-0001/https://security-tracker.debian.org/tracker/CVE-2021-3999https://sourceware.org/bugzilla/show_bug.cgi?id=28769https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Bh=23e0e8f5f1fb5ed150253d986ecccdc90c2dcd5ehttps://www.openwall.com/lists/oss-security/2022/01/24/4