Vulnerability Monitor

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CVE-2020-15863

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.

Published

2020-07-28T16:15:12.777

Last Modified

2024-11-21T05:06:20.100

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 5.3 (MEDIUM)

CVSSv2 Vector

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

Access Vector: LOCAL
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: PARTIAL
Availability Impact: PARTIAL

Exploitability Score

3.4

Impact Score

6.4

Weaknesses

Type: Primary
CWE-787

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	qemu	qemu	≤ 5.0.0	Yes
Application	qemu	qemu	5.1.0	Yes
Operating System	debian	debian_linux	10.0	Yes
Operating System	canonical	ubuntu_linux	16.04	Yes
Operating System	canonical	ubuntu_linux	18.04	Yes
Operating System	canonical	ubuntu_linux	20.04	Yes

References

http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00024.html Mailing List, Third Party Advisory ([email protected])
http://www.openwall.com/lists/oss-security/2020/07/22/1 Mailing List, Patch, Third Party Advisory ([email protected])
https://git.qemu.org/?p=qemu.git%3Ba=commitdiff%3Bh=5519724a13664b43e225ca05351c60b4468e4555 ([email protected])
https://lists.nongnu.org/archive/html/qemu-devel/2020-07/msg03497.html Mailing List, Patch, Third Party Advisory ([email protected])
https://lists.nongnu.org/archive/html/qemu-devel/2020-07/msg05745.html Mailing List, Patch, Third Party Advisory ([email protected])
https://security.gentoo.org/glsa/202208-27 Third Party Advisory ([email protected])
https://usn.ubuntu.com/4467-1/ Third Party Advisory ([email protected])
https://www.debian.org/security/2020/dsa-4760 Third Party Advisory ([email protected])
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00024.html Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2020/07/22/1 Mailing List, Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://git.qemu.org/?p=qemu.git%3Ba=commitdiff%3Bh=5519724a13664b43e225ca05351c60b4468e4555 (af854a3a-2127-422b-91ae-364da2661108)
https://lists.nongnu.org/archive/html/qemu-devel/2020-07/msg03497.html Mailing List, Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.nongnu.org/archive/html/qemu-devel/2020-07/msg05745.html Mailing List, Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://security.gentoo.org/glsa/202208-27 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://usn.ubuntu.com/4467-1/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.debian.org/security/2020/dsa-4760 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)