Vulnerabilities
Misconfiguration
Compliance
CVE Vulnerabilities

CVE-2023-3019

Use After Free

Published: Jul 24, 2023 | Modified: Nov 03, 2025
CVSS 3.x
6.5
MEDIUM
Source:
NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
CVSS 2.x
RedHat/V2
RedHat/V3
6 MODERATE
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
Ubuntu
LOW
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Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2023-3019
CWEhttps://cwe.mitre.org/data/definitions/416.html

A DMA reentrancy issue leading to a use-after-free error was found in the e1000e NIC emulation code in QEMU. This issue could allow a privileged guest user to crash the QEMU process on the host, resulting in a denial of service.

Weakness

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory “belongs” to the code that operates on the new pointer.

Affected Software

NameVendorStart VersionEnd Version
QemuQemu*8.2.0 (excluding)
Red Hat Enterprise Linux 8RedHatvirt-devel:rhel-8090020231206155326.a75119d5*
Red Hat Enterprise Linux 8RedHatvirt:rhel-8090020231206155326.a75119d5*
Red Hat Enterprise Linux 8.6 Extended Update SupportRedHatvirt-devel:rhel-8060020231128234847.ad008a3a*
Red Hat Enterprise Linux 8.6 Extended Update SupportRedHatvirt:rhel-8060020231128234847.ad008a3a*
Red Hat Enterprise Linux 8.8 Extended Update SupportRedHatvirt-devel:rhel-8080020240116113044.63b34585*
Red Hat Enterprise Linux 8.8 Extended Update SupportRedHatvirt:rhel-8080020240116113044.63b34585*
Red Hat Enterprise Linux 9RedHatqemu-kvm-17:8.2.0-11.el9_4*
QemuUbuntubionic*
QemuUbuntuesm-infra-legacy/trusty*
QemuUbuntuesm-infra/bionic*
QemuUbuntuesm-infra/focal*
QemuUbuntuesm-infra/xenial*
QemuUbuntufocal*
QemuUbuntujammy*
QemuUbuntukinetic*
QemuUbuntulunar*
QemuUbuntumantic*
QemuUbuntutrusty*
QemuUbuntutrusty/esm*
QemuUbuntuxenial*

Potential Mitigations

References

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