CVE-2020-15863

medium
New! CVE Severity Now Using CVSS v3

The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

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

http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00024.html

http://www.openwall.com/lists/oss-security/2020/07/22/1

https://git.qemu.org/?p=qemu.git;a=commitdiff;h=5519724a13664b43e225ca05351c60b4468e4555

https://lists.nongnu.org/archive/html/qemu-devel/2020-07/msg03497.html

https://lists.nongnu.org/archive/html/qemu-devel/2020-07/msg05745.html

https://usn.ubuntu.com/4467-1/

https://www.debian.org/security/2020/dsa-4760

Details

Source: MITRE

Published: 2020-07-28

Updated: 2021-01-04

Type: CWE-787

Risk Information

CVSS v2

Base Score: 4.4

Vector: AV:L/AC:M/Au:N/C:P/I:P/A:P

Impact Score: 6.4

Exploitability Score: 3.4

Severity: MEDIUM

CVSS v3

Base Score: 5.3

Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L

Impact Score: 3.7

Exploitability Score: 1.1

Severity: MEDIUM

Tenable Plugins

View all (20 total)

IDNameProductFamilySeverity
152199SUSE SLES11 Security Update : kvm (SUSE-SU-2021:14772-1)NessusSuSE Local Security Checks
medium
148966SUSE SLES12 Security Update : qemu (SUSE-SU-2021:1305-1)NessusSuSE Local Security Checks
high
148761SUSE SLES12 Security Update : qemu (SUSE-SU-2021:1241-1)NessusSuSE Local Security Checks
high
148758SUSE SLES12 Security Update : qemu (SUSE-SU-2021:1240-1)NessusSuSE Local Security Checks
high
148757SUSE SLES15 Security Update : qemu (SUSE-SU-2021:1244-1)NessusSuSE Local Security Checks
high
148752SUSE SLES15 Security Update : qemu (SUSE-SU-2021:1245-1)NessusSuSE Local Security Checks
high
147700EulerOS Virtualization 2.9.0 : qemu (EulerOS-SA-2021-1667)NessusHuawei Local Security Checks
medium
147523EulerOS Virtualization 2.9.1 : qemu (EulerOS-SA-2021-1632)NessusHuawei Local Security Checks
medium
147490EulerOS Virtualization 3.0.6.6 : qemu (EulerOS-SA-2021-1455)NessusHuawei Local Security Checks
medium
146269Oracle Linux 7 : qemu (ELSA-2021-9034)NessusOracle Linux Local Security Checks
medium
143815SUSE SLED15 / SLES15 Security Update : qemu (SUSE-SU-2020:2877-1)NessusSuSE Local Security Checks
medium
143810SUSE SLES12 Security Update : qemu (SUSE-SU-2020:2743-1)NessusSuSE Local Security Checks
medium
142284EulerOS 2.0 SP2 : qemu-kvm (EulerOS-SA-2020-2392)NessusHuawei Local Security Checks
high
141409openSUSE Security Update : qemu (openSUSE-2020-1664)NessusSuSE Local Security Checks
medium
140864EulerOS 2.0 SP3 : qemu-kvm (EulerOS-SA-2020-2097)NessusHuawei Local Security Checks
high
140317EulerOS Virtualization for ARM 64 3.0.2.0 : qemu-kvm (EulerOS-SA-2020-1947)NessusHuawei Local Security Checks
medium
140301Debian DSA-4760-1 : qemu - security updateNessusDebian Local Security Checks
medium
140017EulerOS Virtualization for ARM 64 3.0.6.0 : qemu-kvm (EulerOS-SA-2020-1914)NessusHuawei Local Security Checks
medium
139725Ubuntu 16.04 LTS / 18.04 LTS / 20.04 : QEMU vulnerabilities (USN-4467-1)NessusUbuntu Local Security Checks
medium
138911Debian DLA-2288-1 : qemu security updateNessusDebian Local Security Checks
medium