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
| Link | Resource |
|---|---|
| https://lists.gnu.org/archive/html/qemu-devel/2021-02/msg07428.html | Mailing List Patch Vendor Advisory |
| https://github.com/qemu/qemu/commit/3de46e6fc489c52c9431a8a832ad8170a7569bd8 | Patch Third Party Advisory |
| https://bugzilla.redhat.com/show_bug.cgi?id=1930087 | Issue Tracking Patch Third Party Advisory |
| https://www.openwall.com/lists/oss-security/2021/02/25/2 | Mailing List Patch Third Party Advisory |
| https://security.netapp.com/advisory/ntap-20220425-0003/ | Third Party Advisory |
Configurations
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Information
Published : 2022-03-16 15:15
Updated : 2022-05-12 20:47
NVD link : CVE-2021-20257
Mitre link : CVE-2021-20257
JSON object : View
Products Affected
redhat
- enterprise_linux_for_power_little_endian
- enterprise_linux_for_ibm_z_systems
- openstack_platform
- codeready_linux_builder
- enterprise_linux
qemu
- qemu
fedoraproject
- fedora
CWE
CWE-835
Loop with Unreachable Exit Condition ('Infinite Loop')
