Medium severity · published Jul 28, 2020
CVE-2020-15863
hw/net/xgmac.c in the XGMAC Ethernet controller in QEMU before 07-20-2020 has a buffer overflow
5.3
CVSS
0.5%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L
Attack vector
Local
Complexity
High
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
Low
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 41% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
10.0 · source: NVD
QE
Qemu · Qemu
through 5.0.0; 5.1.0 · source: NVD
UL
Ubuntu Linux · Canonical
16.04; 18.04; 20.04 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-15863
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-15863
Mailing List
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00024.html
Mailing List
http://www.openwall.com/lists/oss-security/2020/07/22/1
git.qemu.org
https://git.qemu.org/?p=qemu.git%3Ba=commitdiff%3Bh=5519724a13664b43e225ca05351c60b4468e4555
Mailing List
https://lists.nongnu.org/archive/html/qemu-devel/2020-07/msg03497.html
Mailing List
https://lists.nongnu.org/archive/html/qemu-devel/2020-07/msg05745.html
Third Party Advisory
https://security.gentoo.org/glsa/202208-27
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