Unrated severityNVD Advisory· Published Dec 8, 2020· Updated Aug 4, 2024
CVE-2020-27821
CVE-2020-27821
Description
A flaw was found in the memory management API of QEMU during the initialization of a memory region cache. This issue could lead to an out-of-bounds write access to the MSI-X table while performing MMIO operations. A guest user may abuse this flaw to crash the QEMU process on the host, resulting in a denial of service. This flaw affects QEMU versions prior to 5.2.0.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
69- osv-coords67 versionspkg:rpm/almalinux/hivexpkg:rpm/almalinux/hivex-develpkg:rpm/almalinux/libguestfs-winsupportpkg:rpm/almalinux/libiscsipkg:rpm/almalinux/libiscsi-develpkg:rpm/almalinux/libiscsi-utilspkg:rpm/almalinux/libnbdpkg:rpm/almalinux/libnbd-develpkg:rpm/almalinux/libvirt-dbuspkg:rpm/almalinux/nbdfusepkg:rpm/almalinux/nbdkitpkg:rpm/almalinux/nbdkit-bash-completionpkg:rpm/almalinux/nbdkit-basic-filterspkg:rpm/almalinux/nbdkit-basic-pluginspkg:rpm/almalinux/nbdkit-curl-pluginpkg:rpm/almalinux/nbdkit-develpkg:rpm/almalinux/nbdkit-example-pluginspkg:rpm/almalinux/nbdkit-gzip-pluginpkg:rpm/almalinux/nbdkit-linuxdisk-pluginpkg:rpm/almalinux/nbdkit-python-pluginpkg:rpm/almalinux/nbdkit-serverpkg:rpm/almalinux/nbdkit-ssh-pluginpkg:rpm/almalinux/nbdkit-vddk-pluginpkg:rpm/almalinux/nbdkit-xz-filterpkg:rpm/almalinux/netcfpkg:rpm/almalinux/netcf-develpkg:rpm/almalinux/netcf-libspkg:rpm/almalinux/ocaml-hivexpkg:rpm/almalinux/ocaml-hivex-develpkg:rpm/almalinux/ocaml-libguestfspkg:rpm/almalinux/ocaml-libguestfs-develpkg:rpm/almalinux/ocaml-libnbdpkg:rpm/almalinux/ocaml-libnbd-develpkg:rpm/almalinux/perl-hivexpkg:rpm/almalinux/perl-Sys-Virtpkg:rpm/almalinux/python3-hivexpkg:rpm/almalinux/python3-libnbdpkg:rpm/almalinux/python3-libvirtpkg:rpm/almalinux/ruby-hivexpkg:rpm/almalinux/seabiospkg:rpm/almalinux/seabios-binpkg:rpm/almalinux/seavgabios-binpkg:rpm/almalinux/sgabiospkg:rpm/almalinux/sgabios-binpkg:rpm/almalinux/superminpkg:rpm/almalinux/supermin-develpkg:rpm/opensuse/qemu&distro=openSUSE%20Leap%2015.2pkg:rpm/opensuse/qemu&distro=openSUSE%20Leap%2015.3pkg:rpm/opensuse/qemu&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/qemu-linux-user&distro=openSUSE%20Leap%2015.2pkg:rpm/opensuse/qemu-testsuite&distro=openSUSE%20Leap%2015.2pkg:rpm/suse/qemu&distro=SUSE%20Enterprise%20Storage%206pkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-ESPOSpkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-LTSSpkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Micro%205.0pkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP2pkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP3pkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP2pkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP3pkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5pkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-BCLpkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-LTSSpkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5pkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP1pkg:rpm/suse/qemu&distro=SUSE%20Manager%20Proxy%204.0pkg:rpm/suse/qemu&distro=SUSE%20Manager%20Retail%20Branch%20Server%204.0pkg:rpm/suse/qemu&distro=SUSE%20Manager%20Server%204.0
< 1.3.18-20.module_el8.3.0+2048+e7a0a3ea+ 66 more
- (no CPE)range: < 1.3.18-20.module_el8.3.0+2048+e7a0a3ea
- (no CPE)range: < 1.3.18-20.module_el8.3.0+2048+e7a0a3ea
- (no CPE)range: < 8.2-1.module_el8.5.0+2608+72063365
- (no CPE)range: < 1.18.0-8.module_el8.6.0+2880+7d9e3703
- (no CPE)range: < 1.18.0-8.module_el8.6.0+2880+7d9e3703
- (no CPE)range: < 1.18.0-8.module_el8.3.0+2048+e7a0a3ea
- (no CPE)range: < 1.2.2-1.module_el8.5.0+2608+72063365
- (no CPE)range: < 1.2.2-1.module_el8.3.0+2048+e7a0a3ea
- (no CPE)range: < 1.3.0-2.module_el8.6.0+2880+7d9e3703
- (no CPE)range: < 1.2.2-1.module_el8.3.0+2048+e7a0a3ea
- (no CPE)range: < 1.16.2-4.module_el8.5.0+2608+72063365
- (no CPE)range: < 1.16.2-4.module_el8.5.0+2608+72063365
- (no CPE)range: < 1.16.2-4.module_el8.5.0+2608+72063365
- (no CPE)range: < 1.16.2-4.module_el8.5.0+2608+72063365
- (no CPE)range: < 1.16.2-4.module_el8.5.0+2608+72063365
- (no CPE)range: < 1.16.2-4.module_el8.5.0+2608+72063365
- (no CPE)range: < 1.16.2-4.module_el8.5.0+2608+72063365
- (no CPE)range: < 1.16.2-4.module_el8.5.0+2608+72063365
- (no CPE)range: < 1.16.2-4.module_el8.5.0+2608+72063365
- (no CPE)range: < 1.16.2-4.module_el8.5.0+2608+72063365
- (no CPE)range: < 1.16.2-4.module_el8.5.0+2608+72063365
- (no CPE)range: < 1.16.2-4.module_el8.5.0+2608+72063365
- (no CPE)range: < 1.16.2-4.module_el8.5.0+2608+72063365
- (no CPE)range: < 1.16.2-4.module_el8.5.0+2608+72063365
- (no CPE)range: < 0.2.8-12.module_el8.5.0+2608+72063365
- (no CPE)range: < 0.2.8-12.module_el8.3.0+2048+e7a0a3ea
- (no CPE)range: < 0.2.8-12.module_el8.6.0+2880+7d9e3703
- (no CPE)range: < 1.3.18-20.module_el8.3.0+2048+e7a0a3ea
- (no CPE)range: < 1.3.18-20.module_el8.3.0+2048+e7a0a3ea
- (no CPE)range: < 1:1.40.2-27.module_el8.4.0+2358+630e803b.alma
- (no CPE)range: < 1:1.40.2-27.module_el8.4.0+2358+630e803b.alma
- (no CPE)range: < 1.2.2-1.module_el8.3.0+2048+e7a0a3ea
- (no CPE)range: < 1.2.2-1.module_el8.3.0+2048+e7a0a3ea
- (no CPE)range: < 1.3.18-20.module_el8.3.0+2048+e7a0a3ea
- (no CPE)range: < 6.0.0-1.module_el8.5.0+2608+72063365
- (no CPE)range: < 1.3.18-20.module_el8.3.0+2048+e7a0a3ea
- (no CPE)range: < 1.2.2-1.module_el8.5.0+2608+72063365
- (no CPE)range: < 6.0.0-1.module_el8.3.0+2048+e7a0a3ea
- (no CPE)range: < 1.3.18-20.module_el8.3.0+2048+e7a0a3ea
- (no CPE)range: < 1.13.0-2.module_el8.5.0+2608+72063365
- (no CPE)range: < 1.13.0-2.module_el8.5.0+2608+72063365
- (no CPE)range: < 1.13.0-2.module_el8.5.0+2608+72063365
- (no CPE)range: < 1:0.20170427git-3.module_el8.5.0+2608+72063365
- (no CPE)range: < 1:0.20170427git-3.module_el8.5.0+2608+72063365
- (no CPE)range: < 5.1.19-10.module_el8.5.0+2608+72063365
- (no CPE)range: < 5.1.19-10.module_el8.5.0+2608+72063365
- (no CPE)range: < 4.2.1-lp152.9.12.1
- (no CPE)range: < 5.2.0-17.1
- (no CPE)range: < 6.1.0-32.1
- (no CPE)range: < 4.2.1-lp152.9.12.1
- (no CPE)range: < 4.2.1-lp152.9.12.1
- (no CPE)range: < 3.1.1.1-9.24.3
- (no CPE)range: < 3.1.1.1-9.24.3
- (no CPE)range: < 3.1.1.1-9.24.3
- (no CPE)range: < 4.2.1-11.16.3
- (no CPE)range: < 4.2.1-11.16.3
- (no CPE)range: < 5.2.0-17.1
- (no CPE)range: < 4.2.1-11.16.3
- (no CPE)range: < 5.2.0-17.1
- (no CPE)range: < 3.1.1.1-48.2
- (no CPE)range: < 3.1.1.1-9.24.3
- (no CPE)range: < 3.1.1.1-9.24.3
- (no CPE)range: < 3.1.1.1-48.2
- (no CPE)range: < 3.1.1.1-9.24.3
- (no CPE)range: < 3.1.1.1-9.24.3
- (no CPE)range: < 3.1.1.1-9.24.3
- (no CPE)range: < 3.1.1.1-9.24.3
Patches
Vulnerability mechanics
References
4- www.openwall.com/lists/oss-security/2020/12/16/6mitremailing-listx_refsource_MLIST
- bugzilla.redhat.com/show_bug.cgimitrex_refsource_MISC
- lists.debian.org/debian-lts-announce/2022/09/msg00008.htmlmitremailing-listx_refsource_MLIST
- security.netapp.com/advisory/ntap-20210115-0006/mitrex_refsource_CONFIRM
News mentions
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