CVE-2023-6693

Name
CVE-2023-6693
Description
A stack based buffer overflow was found in the virtio-net device of QEMU. This issue occurs when flushing TX in the virtio_net_flush_tx function if guest features VIRTIO_NET_F_HASH_REPORT, VIRTIO_F_VERSION_1 and VIRTIO_NET_F_MRG_RXBUF are enabled. This could allow a malicious user to overwrite local variables allocated on the stack. Specifically, the `out_sg` variable could be used to read a part of process memory and send it to the wire, causing an information leak.
NVD Severity
unknown
Other trackers
CVE, NVD, CERT, CVE Details, CIRCL, Arch Linux, Debian, Red Hat, Ubuntu, Gentoo, SUSE (Bugzilla), SUSE (CVE), Mageia
Mailing lists
oss-security, full-disclosure, bugtraq
Exploits
Exploit DB, Metasploit
Forges
GitHub (code, issues), Aports (code, issues)

References

Type URI
vdb-entry https://access.redhat.com/security/cve/CVE-2023-6693
issue-tracking https://bugzilla.redhat.com/show_bug.cgi?id=2254580
secalert@redhat.com https://security.netapp.com/advisory/ntap-20240208-0004/
secalert@redhat.com https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OYGUN5HVOXESW7MSNM44E4AE2VNXQB6Y/
vendor-advisory https://access.redhat.com/errata/RHSA-2024:2962
vendor-advisory https://access.redhat.com/errata/RHSA-2025:4492
af854a3a-2127-422b-91ae-364da2661108 https://lists.debian.org/debian-lts-announce/2025/04/msg00042.html

Match rules

CPE URI Source package Min version Max version
cpe:/a:redhat:enterprise_linux:8::appstream shopxo >= 8100020240314161907.e155f54d < *
cpe:/a:redhat:enterprise_linux:9::appstream shopxo >= 17:9.0.0-10.el9_5.3 < *

Vulnerable and fixed packages

Source package Branch Version Maintainer Status
qemu 3.19-community 8.1.5-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable