CVE-2020-16092

Severity: low (CVSS 3.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2020-08-11 · updated 2026-06-17
Weakness: CWE-617

Description

In QEMU through 5.0.0, an assertion failure can occur in the network packet processing. This issue affects the e1000e and vmxnet3 network devices. A malicious guest user/process could use this flaw to abort the QEMU process on the host, resulting in a denial of service condition in net_tx_pkt_add_raw_fragment in hw/net/net_tx_pkt.c.

Affected products

Canonical Ubuntu Linux: 16.04, 18.04, 20.04
Debian Linux: 9.0, 10.0
openSUSE Leap: 15.2
QEMU: through 5.0.0

References

http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00024.html
http://www.openwall.com/lists/oss-security/2020/08/10/1
https://lists.debian.org/debian-lts-announce/2020/09/msg00013.html
https://lists.nongnu.org/archive/html/qemu-devel/2020-07/msg07563.html
https://security.gentoo.org/glsa/202208-27
https://security.netapp.com/advisory/ntap-20200821-0006/
https://usn.ubuntu.com/4467-1/
https://www.debian.org/security/2020/dsa-4760
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00024.html
http://www.openwall.com/lists/oss-security/2020/08/10/1
https://lists.debian.org/debian-lts-announce/2020/09/msg00013.html
https://lists.nongnu.org/archive/html/qemu-devel/2020-07/msg07563.html

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