CVE-2020-15863

MEDIUM
5.3
CVSS Score
Published: July 28, 2020 at 03:40 PM UTC
Updated: June 17, 2026 at 02:57 AM UTC
3 products affected across 3 vendorsDebian LinuxUbuntu LinuxQEMU

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Severity
MEDIUM5.3
Exploit prediction
EPSS 0.5%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

References (8)

Vendor Advisoryx_refsource_SUSEMailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00024.html
x_refsource_CONFIRMMailing ListPatchThird Party Advisory
http://www.openwall.com/lists/oss-security/2020/07/22/1
x_refsource_MISCMailing ListPatchThird Party Advisory
https://lists.nongnu.org/archive/html/qemu-devel/2020-07/msg03497.html
x_refsource_MISCMailing ListPatchThird Party Advisory
https://lists.nongnu.org/archive/html/qemu-devel/2020-07/msg05745.html
Vendor Advisoryx_refsource_GENTOOThird Party Advisory
https://security.gentoo.org/glsa/202208-27
Vendor Advisoryx_refsource_UBUNTUThird Party Advisory
https://usn.ubuntu.com/4467-1/
Vendor Advisoryx_refsource_DEBIANThird Party Advisory
https://www.debian.org/security/2020/dsa-4760

CVSS

Attack Vector
LOCAL
Complexity
HIGH
Privileges
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
LOW
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-787

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