#VU54109 Out-of-bounds read in hivex - CVE-2021-3504
Published: June 15, 2021
Vulnerability identifier: #VU54109
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2021-3504
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
hivex
hivex
Software vendor:
libguestfs
libguestfs
Description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary condition within the hivex_open() function when processing a Windows Registry (hive) file. A remote attacker can create a specially crafted Windows Registry (hive) file, trick the victim into opening it, trigger out-of-bounds read error and crash the application that us using the affected library.
Remediation
Install updates from vendor's website.
External links
- https://bugzilla.redhat.com/show_bug.cgi?id=1949687
- https://lists.debian.org/debian-lts-announce/2021/05/msg00011.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BQXTEACRWYAZVNEOIWIYUFGG4GOXSQ22/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/A5BNKNVYFL36P2GBEB5O36LHFRYU575H/