CVE-2020-15863
5.3 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
LOW
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L
5.5 Medium
AI Score
Confidence
High
4.4 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:L/AC:M/Au:N/C:P/I:P/A:P
0.001 Low
EPSS
Percentile
19.3%
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
lists.opensuse.org/opensuse-security-announce/2020-10/msg00024.html
www.openwall.com/lists/oss-security/2020/07/22/1
git.qemu.org/?p=qemu.git%3Ba=commitdiff%3Bh=5519724a13664b43e225ca05351c60b4468e4555
lists.nongnu.org/archive/html/qemu-devel/2020-07/msg03497.html
lists.nongnu.org/archive/html/qemu-devel/2020-07/msg05745.html
security.gentoo.org/glsa/202208-27
usn.ubuntu.com/4467-1/
www.debian.org/security/2020/dsa-4760
Social References
More
Related
5.3 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
LOW
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L
5.5 Medium
AI Score
Confidence
High
4.4 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:L/AC:M/Au:N/C:P/I:P/A:P
0.001 Low
EPSS
Percentile
19.3%