Resource exhaustion in Fedoraproject Fedora
CVE-2021-3622
A flaw was found in the hivex library. This flaw allows an attacker to input a specially crafted Windows Registry (hive) file, which would cause hivex to recursively call the _get_children() function, leading to a stack overflow. The highest threat from this vulnerability is to system availability.
Vulnerability class: DoS (Denial of Service)
EPSS: 0.048 (91.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L.
Affected products
- Fedoraproject Fedora — versions 33, 34
- Redhat Enterprise_linux — versions 6.0, 7.0, 8.0
- Redhat Enterprise_linux_workstation — versions 7.0
- Redhat Hivex
- N/a Hivex — versions hivex-1.3.21
Weakness classification (CWE)
References
- secalert@redhat.com (x_refsource_FEDORA, vendor-advisory)
- secalert@redhat.com (x_refsource_FEDORA, vendor-advisory)
- secalert@redhat.com (Exploit, Patch, x_refsource_MISC, Issue Tracking, Vendor Advisory)
- secalert@redhat.com (Patch, Third Party Advisory, x_refsource_MISC)
- secalert@redhat.com (Patch, Mailing List, x_refsource_MISC, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-3622?
- CVE-2021-3622 is a medium-severity vulnerability in Fedoraproject Fedora, classified under Uncontrolled Resource Consumption. CVSS score: 4.3/10. Published 2021-12-23.
- How severe is CVE-2021-3622?
- Medium severity. CVSS v3 base score is 4.3 out of 10.