Unrated severityNVD Advisory· Published Mar 16, 2022· Updated Aug 3, 2024
CVE-2021-20257
CVE-2021-20257
Description
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.
Affected products
1Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
7- security.gentoo.org/glsa/202208-27mitrevendor-advisoryx_refsource_GENTOO
- bugzilla.redhat.com/show_bug.cgimitrex_refsource_MISC
- github.com/qemu/qemu/commit/3de46e6fc489c52c9431a8a832ad8170a7569bd8mitrex_refsource_MISC
- lists.debian.org/debian-lts-announce/2022/09/msg00008.htmlmitremailing-listx_refsource_MLIST
- lists.gnu.org/archive/html/qemu-devel/2021-02/msg07428.htmlmitrex_refsource_MISC
- security.netapp.com/advisory/ntap-20220425-0003/mitrex_refsource_CONFIRM
- www.openwall.com/lists/oss-security/2021/02/25/2mitrex_refsource_MISC
News mentions
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