VulnerabilityModified
CVE-2021-3622
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.
MEDIUM 4.3EPSS 4.79%
Does this matter?
Lower severity and a low EPSS score (4.79%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 3.1
- 4.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
- EPSS
- 4.79% probability · 91th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-400
- Affected
- redhat/hivex · redhat/enterprise linux · redhat/enterprise linux workstation · fedoraproject/fedora
- Source
- secalert@redhat.com
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1975489Exploit, Issue Tracking, Patch, Vendor Advisory
- https://github.com/libguestfs/hivex/commit/771728218dac2fbf6997a7e53225e75a4c6b7255Patch, Third Party Advisory
- https://listman.redhat.com/archives/libguestfs/2021-August/msg00002.htmlMailing List, Patch, Vendor Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/S35TVTAPHORSUIFYNFBHKLQRPVFUPXBE/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/USD4OEV6L3RPHE32V2MJ4JPFBODINWSU/
- https://bugzilla.redhat.com/show_bug.cgi?id=1975489Exploit, Issue Tracking, Patch, Vendor Advisory
- https://github.com/libguestfs/hivex/commit/771728218dac2fbf6997a7e53225e75a4c6b7255Patch, Third Party Advisory
- https://listman.redhat.com/archives/libguestfs/2021-August/msg00002.htmlMailing List, Patch, Vendor Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/S35TVTAPHORSUIFYNFBHKLQRPVFUPXBE/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/USD4OEV6L3RPHE32V2MJ4JPFBODINWSU/
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.