Vulnerability 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 Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Qemu | Qemu | <= 5.0.0 |
| Debian | Debian Linux | 10.0 |
| Canonical | Ubuntu Linux | 16.04 |
Related Weaknesses (CWE)
References
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00024.htmlMailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2020/07/22/1Mailing ListPatchThird Party Advisory
- https://git.qemu.org/?p=qemu.git%3Ba=commitdiff%3Bh=5519724a13664b43e225ca05351c
- https://lists.nongnu.org/archive/html/qemu-devel/2020-07/msg03497.htmlMailing ListPatchThird Party Advisory
- https://lists.nongnu.org/archive/html/qemu-devel/2020-07/msg05745.htmlMailing ListPatchThird Party Advisory
- https://security.gentoo.org/glsa/202208-27Third Party Advisory
- https://usn.ubuntu.com/4467-1/Third Party Advisory
- https://www.debian.org/security/2020/dsa-4760Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00024.htmlMailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2020/07/22/1Mailing ListPatchThird Party Advisory
- https://git.qemu.org/?p=qemu.git%3Ba=commitdiff%3Bh=5519724a13664b43e225ca05351c
- https://lists.nongnu.org/archive/html/qemu-devel/2020-07/msg03497.htmlMailing ListPatchThird Party Advisory
- https://lists.nongnu.org/archive/html/qemu-devel/2020-07/msg05745.htmlMailing ListPatchThird Party Advisory
- https://security.gentoo.org/glsa/202208-27Third Party Advisory
- https://usn.ubuntu.com/4467-1/Third Party Advisory
FAQ
What is CVE-2020-15863?
CVE-2020-15863 is a vulnerability with a CVSS score of 5.3 (MEDIUM). 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 u...
How severe is CVE-2020-15863?
CVE-2020-15863 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-15863?
Check the references section above for vendor advisories and patch information. Affected products include: Qemu Qemu, Debian Debian Linux, Canonical Ubuntu Linux.