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CVE-2021-20255

Description

A stack overflow via an infinite recursion vulnerability was found in the eepro100 i8255x device emulator of QEMU. This issue occurs while processing controller commands due to a DMA reentry issue. This flaw allows a guest user or process to consume CPU cycles or crash the QEMU process on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability.

Risk Information

Base Score
5.5
MODERATE
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS Score
Exploitation Probability
0.189

Associated Vulnerability

VulnerabilityOS Platform
Vulnerability CVE-2021-20255,CVE-2021-3527 are affected in QEMU 2020Windows
Multiple Vulnerabilities are affected in QEMU 5.1.1Windows
SUSE-SU-2021:2813-1(SUSE Linux Enterprise Server 12-SP5 ) qemu-3.1.1.1-57.2.x86_64.rpmLinux
SUSE-SU-2021:2813-1(SUSE Linux Enterprise Server 12-SP5 ) qemu-audio-alsa-3.1.1.1-57.2.x86_64.rpmLinux
SUSE-SU-2021:2813-1(SUSE Linux Enterprise Server 12-SP5 ) qemu-audio-alsa-debuginfo-3.1.1.1-57.2.x86_64.rpmLinux
SUSE-SU-2021:2813-1(SUSE Linux Enterprise Server 12-SP5 ) qemu-audio-oss-3.1.1.1-57.2.x86_64.rpmLinux
SUSE-SU-2021:2813-1(SUSE Linux Enterprise Server 12-SP5 ) qemu-audio-oss-debuginfo-3.1.1.1-57.2.x86_64.rpmLinux
SUSE-SU-2021:2813-1(SUSE Linux Enterprise Server 12-SP5 ) qemu-audio-pa-3.1.1.1-57.2.x86_64.rpmLinux
SUSE-SU-2021:2813-1(SUSE Linux Enterprise Server 12-SP5 ) qemu-audio-pa-debuginfo-3.1.1.1-57.2.x86_64.rpmLinux
SUSE-SU-2021:2813-1(SUSE Linux Enterprise Server 12-SP5 ) qemu-audio-sdl-3.1.1.1-57.2.x86_64.rpmLinux
SUSE-SU-2021:2813-1(SUSE Linux Enterprise Server 12-SP5 ) qemu-audio-sdl-debuginfo-3.1.1.1-57.2.x86_64.rpmLinux
SUSE-SU-2021:2813-1(SUSE Linux Enterprise Server 12-SP5 ) qemu-block-curl-3.1.1.1-57.2.x86_64.rpmLinux
SUSE-SU-2021:2813-1(SUSE Linux Enterprise Server 12-SP5 ) qemu-block-curl-debuginfo-3.1.1.1-57.2.x86_64.rpmLinux
SUSE-SU-2021:2813-1(SUSE Linux Enterprise Server 12-SP5 ) qemu-block-iscsi-3.1.1.1-57.2.x86_64.rpmLinux
SUSE-SU-2021:2813-1(SUSE Linux Enterprise Server 12-SP5 ) qemu-block-iscsi-debuginfo-3.1.1.1-57.2.x86_64.rpmLinux
SUSE-SU-2021:2813-1(SUSE Linux Enterprise Server 12-SP5 ) qemu-block-rbd-3.1.1.1-57.2.x86_64.rpmLinux
SUSE-SU-2021:2813-1(SUSE Linux Enterprise Server 12-SP5 ) qemu-block-rbd-debuginfo-3.1.1.1-57.2.x86_64.rpmLinux
SUSE-SU-2021:2813-1(SUSE Linux Enterprise Server 12-SP5 ) qemu-block-ssh-3.1.1.1-57.2.x86_64.rpmLinux
SUSE-SU-2021:2813-1(SUSE Linux Enterprise Server 12-SP5 ) qemu-block-ssh-debuginfo-3.1.1.1-57.2.x86_64.rpmLinux
SUSE-SU-2021:2813-1(SUSE Linux Enterprise Server 12-SP5 ) qemu-debugsource-3.1.1.1-57.2.x86_64.rpmLinux
SUSE-SU-2021:2813-1(SUSE Linux Enterprise Server 12-SP5 ) qemu-guest-agent-3.1.1.1-57.2.x86_64.rpmLinux
SUSE-SU-2021:2813-1(SUSE Linux Enterprise Server 12-SP5 ) qemu-guest-agent-debuginfo-3.1.1.1-57.2.x86_64.rpmLinux
SUSE-SU-2021:2813-1(SUSE Linux Enterprise Server 12-SP5 ) qemu-ipxe-1.0.0+-57.2.noarch.rpmLinux
SUSE-SU-2021:2813-1(SUSE Linux Enterprise Server 12-SP5 ) qemu-kvm-3.1.1.1-57.2.x86_64.rpmLinux
SUSE-SU-2021:2813-1(SUSE Linux Enterprise Server 12-SP5 ) qemu-lang-3.1.1.1-57.2.x86_64.rpmLinux
SUSE-SU-2021:2813-1(SUSE Linux Enterprise Server 12-SP5 ) qemu-seabios-1.12.0_0_ga698c89-57.2.noarch.rpmLinux
SUSE-SU-2021:2813-1(SUSE Linux Enterprise Server 12-SP5 ) qemu-sgabios-8-57.2.noarch.rpmLinux
SUSE-SU-2021:2813-1(SUSE Linux Enterprise Server 12-SP5 ) qemu-tools-3.1.1.1-57.2.x86_64.rpmLinux
SUSE-SU-2021:2813-1(SUSE Linux Enterprise Server 12-SP5 ) qemu-tools-debuginfo-3.1.1.1-57.2.x86_64.rpmLinux
SUSE-SU-2021:2813-1(SUSE Linux Enterprise Server 12-SP5 ) qemu-ui-curses-3.1.1.1-57.2.x86_64.rpmLinux
SUSE-SU-2021:2813-1(SUSE Linux Enterprise Server 12-SP5 ) qemu-ui-curses-debuginfo-3.1.1.1-57.2.x86_64.rpmLinux
SUSE-SU-2021:2813-1(SUSE Linux Enterprise Server 12-SP5 ) qemu-ui-gtk-3.1.1.1-57.2.x86_64.rpmLinux
SUSE-SU-2021:2813-1(SUSE Linux Enterprise Server 12-SP5 ) qemu-ui-gtk-debuginfo-3.1.1.1-57.2.x86_64.rpmLinux
SUSE-SU-2021:2813-1(SUSE Linux Enterprise Server 12-SP5 ) qemu-ui-sdl-3.1.1.1-57.2.x86_64.rpmLinux
SUSE-SU-2021:2813-1(SUSE Linux Enterprise Server 12-SP5 ) qemu-ui-sdl-debuginfo-3.1.1.1-57.2.x86_64.rpmLinux
SUSE-SU-2021:2813-1(SUSE Linux Enterprise Server 12-SP5 ) qemu-vgabios-1.12.0_0_ga698c89-57.2.noarch.rpmLinux
SUSE-SU-2021:2813-1(SUSE Linux Enterprise Server 12-SP5 ) qemu-x86-3.1.1.1-57.2.x86_64.rpmLinux

Patch Details

No records found

References

https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234