CVE-2020-15863

MEDIUM

QEMU < 5.0.0 - Buffer Overflow in XGMAC Ethernet Controller

Title source: llm
STIX 2.1

Description

hw/net/xgmac.c in the XGMAC Ethernet controller in QEMU before 07-20-2020 has a buffer overflow. This occurs during packet transmission and affects the highbank and midway emulated machines. A guest user or process could use this flaw to crash the QEMU process on the host, resulting in a denial of service or potential privileged code execution. This was fixed in commit 5519724a13664b43e225ca05351c60b4468e4555.

References (8)

Core 8
Core References
Mailing List, Patch, Third Party Advisory x_refsource_misc
https://lists.nongnu.org/archive/html/qemu-devel/2020-07/msg03497.html
Mailing List, Patch, Third Party Advisory x_refsource_confirm
http://www.openwall.com/lists/oss-security/2020/07/22/1
Mailing List, Patch, Third Party Advisory x_refsource_misc
https://lists.nongnu.org/archive/html/qemu-devel/2020-07/msg05745.html
Third Party Advisory vendor-advisory x_refsource_ubuntu
https://usn.ubuntu.com/4467-1/
Third Party Advisory vendor-advisory x_refsource_debian
https://www.debian.org/security/2020/dsa-4760
Mailing List, Third Party Advisory vendor-advisory x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00024.html
Third Party Advisory vendor-advisory x_refsource_gentoo
https://security.gentoo.org/glsa/202208-27

Scores

CVSS v3 5.3
EPSS 0.0012
EPSS Percentile 30.6%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L

Details

CWE
CWE-787
Status published
Products (6)
canonical/ubuntu_linux 16.04
canonical/ubuntu_linux 18.04
canonical/ubuntu_linux 20.04
debian/debian_linux 10.0
qemu/qemu 5.1.0 rc0
qemu/qemu < 5.0.0
Published Jul 28, 2020
Tracked Since Feb 18, 2026