Uncontrolled Recursion Affecting qemu-chardev-spice package, versions <5.2.0-103.2
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Test your applications- Snyk ID SNYK-SLES153-QEMUCHARDEVSPICE-2666453
- published 14 Apr 2022
- disclosed 27 Aug 2021
Introduced: 27 Aug 2021
CVE-2021-20255 Open this link in a new tabHow to fix?
Upgrade SLES:15.3 qemu-chardev-spice to version 5.2.0-103.2 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream qemu-chardev-spice package and not the qemu-chardev-spice package as distributed by SLES.
See How to fix? for SLES:15.3 relevant fixed versions and status.
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.
References
- https://www.suse.com/security/cve/CVE-2021-20255.html
- https://bugzilla.suse.com/1182651
- https://bugzilla.suse.com/1182654
- https://bugzilla.redhat.com/show_bug.cgi?id=1930646
- https://lists.debian.org/debian-lts-announce/2021/04/msg00009.html
- https://ruhr-uni-bochum.sciebo.de/s/NNWP2GfwzYKeKwE?path=%2Feepro100_stackoverflow1
- https://security.netapp.com/advisory/ntap-20210507-0003/
- https://www.openwall.com/lists/oss-security/2021/02/25/1