RLSA-2021:4191

    Dashboard / Vulnerabilities / RLSA-2021:4191

    RLSA-2021:4191

    Published: 9 Nov 2021Last Modified: 5 Feb 2026

    Summary: Moderate: virt:rhel and virt-devel:rhel security, bug fix, and enhancement update

    Details: Kernel-based Virtual Machine (KVM) offers a full virtualization solution for Linux on numerous hardware platforms. The virt:Rocky Linux module contains packages which provide user-space components used to run virtual machines using KVM. The packages also provide APIs for managing and interacting with the virtualized systems. Security Fix(es): * QEMU: net: e1000e: use-after-free while sending packets (CVE-2020-15859) * QEMU: slirp: invalid pointer initialization may lead to information disclosure (bootp) (CVE-2021-3592) * QEMU: slirp: invalid pointer initialization may lead to information disclosure (udp6) (CVE-2021-3593) * QEMU: slirp: invalid pointer initialization may lead to information disclosure (udp) (CVE-2021-3594) * QEMU: slirp: invalid pointer initialization may lead to information disclosure (tftp) (CVE-2021-3595) * libvirt: Insecure sVirt label generation (CVE-2021-3631) * libvirt: Improper locking on ACL failure in virStoragePoolLookupByTargetPath API (CVE-2021-3667) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. Additional Changes: For detailed information on changes in this release, see the Rocky Linux 8.5 Release Notes linked from the References section.

    References: https://errata.rockylinux.org/RLSA-2021:4191, https://bugzilla.redhat.com/show_bug.cgi?id=1855250, https://bugzilla.redhat.com/show_bug.cgi?id=1859168, https://bugzilla.redhat.com/show_bug.cgi?id=1929357, https://bugzilla.redhat.com/show_bug.cgi?id=1932823, https://bugzilla.redhat.com/show_bug.cgi?id=1933640, https://bugzilla.redhat.com/show_bug.cgi?id=1934509, https://bugzilla.redhat.com/show_bug.cgi?id=1939418, https://bugzilla.redhat.com/show_bug.cgi?id=1942805, https://bugzilla.redhat.com/show_bug.cgi?id=1961562, https://bugzilla.redhat.com/show_bug.cgi?id=1967329, https://bugzilla.redhat.com/show_bug.cgi?id=1967496, https://bugzilla.redhat.com/show_bug.cgi?id=1967716, https://bugzilla.redhat.com/show_bug.cgi?id=1967914, https://bugzilla.redhat.com/show_bug.cgi?id=1969848, https://bugzilla.redhat.com/show_bug.cgi?id=1970484, https://bugzilla.redhat.com/show_bug.cgi?id=1970487, https://bugzilla.redhat.com/show_bug.cgi?id=1970489, https://bugzilla.redhat.com/show_bug.cgi?id=1970491, https://bugzilla.redhat.com/show_bug.cgi?id=1977726, https://bugzilla.redhat.com/show_bug.cgi?id=1982134, https://bugzilla.redhat.com/show_bug.cgi?id=1986094, https://bugzilla.redhat.com/show_bug.cgi?id=1994041

    Affected packages

    Package

    Name: hivex

    Purl: pkg:rpm/rocky-linux/hivex?distro=rocky-linux-8-4-legacy&epoch=0

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -0:1.3.18-21.module+el8.4.0+642+7e26f5e1

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    RLSA-2021:4191 | CVE-DB