high7.8
CVE-2021-3999
A flaw was found in glibc.
Impact
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
| Vendor | Product | Affected versions |
|---|---|---|
| Gnu | Glibc | before 2.31 |
| Debian | Debian Linux | Versions 10.0, 11.0 |
| Netapp | E-Series Performance Analyzer | All versions |
| Netapp | Nfs Plug-In | All versions |
| Netapp | Ontap Select Deploy Administration Utility | All versions |
| Netapp | H300s Firmware | All versions |
| Netapp | H500s Firmware | All versions |
| Netapp | H700s Firmware | All versions |
| Netapp | H410s Firmware | All versions |
| Netapp | H410c Firmware | All versions |
Weakness classification
References
- NVD record
- CVE.org record
- https://access.redhat.com/security/cve/CVE-2021-3999
- https://bugzilla.redhat.com/show_bug.cgi?id=2024637
- https://lists.debian.org/debian-lts-announce/2022/10/msg00021.html
- https://security-tracker.debian.org/tracker/CVE-2021-3999
- https://security.netapp.com/advisory/ntap-20221104-0001/
- https://sourceware.org/bugzilla/show_bug.cgi?id=28769
- https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Bh=23e0e8f5f1fb5ed150253d986ecccdc90c2dcd5e
- https://www.openwall.com/lists/oss-security/2022/01/24/4
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html
- https://cert-portal.siemens.com/productcert/html/ssa-831302.html