Loop with Unreachable Exit Condition ('Infinite Loop') Affecting qemu package, versions <1:3.1+dfsg-8+deb10u9
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Test your applications- Snyk ID SNYK-DEBIAN10-QEMU-1078515
- published 23 Feb 2021
- disclosed 16 Mar 2022
Introduced: 23 Feb 2021
CVE-2021-20257 Open this link in a new tabHow to fix?
Upgrade Debian:10
qemu
to version 1:3.1+dfsg-8+deb10u9 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream qemu
package and not the qemu
package as distributed by Debian
.
See How to fix?
for Debian:10
relevant fixed versions and status.
An infinite loop flaw was found in the e1000 NIC emulator of the QEMU. This issue occurs while processing transmits (tx) descriptors in process_tx_desc if various descriptor fields are initialized with invalid values. This flaw allows a guest to consume CPU cycles on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability.
References
- https://security-tracker.debian.org/tracker/CVE-2021-20257
- https://lists.gnu.org/archive/html/qemu-devel/2021-02/msg07428.html
- https://github.com/qemu/qemu/commit/3de46e6fc489c52c9431a8a832ad8170a7569bd8
- https://bugzilla.redhat.com/show_bug.cgi?id=1930087
- https://www.openwall.com/lists/oss-security/2021/02/25/2
- https://security.netapp.com/advisory/ntap-20220425-0003/
- https://security.gentoo.org/glsa/202208-27
- https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html
- https://access.redhat.com/errata/RHSA-2021:5238
- https://access.redhat.com/errata/RHSA-2022:0081
- https://access.redhat.com/security/cve/CVE-2021-20257