CVE-2020-15863: Buffer Overflow
First published: Tue Jul 28 2020(Updated: )
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.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| QEMU qemu | <=5.0.0 | |
| QEMU qemu | =5.1.0-rc0 | |
| Debian Debian Linux | =10.0 | |
| Canonical Ubuntu Linux | =16.04 | |
| Canonical Ubuntu Linux | =18.04 | |
| Canonical Ubuntu Linux | =20.04 | |
| debian/qemu | 1:5.2+dfsg-11+deb11u3 1:5.2+dfsg-11+deb11u2 1:7.2+dfsg-7+deb12u7 1:9.2.0+ds-2 |
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Reference Links
- 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://security.gentoo.org/glsa/202208-27
- https://usn.ubuntu.com/4467-1/
- https://www.debian.org/security/2020/dsa-4760
- https://launchpad.net/bugs/cve/CVE-2020-15863
- https://git.qemu.org/?p=qemu.git%3Ba=commitdiff%3Bh=5519724a13664b43e225ca05351c60b4468e4555
- https://www.openwall.com/lists/oss-security/2020/07/22/1
- https://git.qemu.org/?p=qemu.git;a=commit;h=5519724a13664b43e225ca05351c60b4468e4555
- https://security-tracker.debian.org/tracker/CVE-2020-15863
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-15863
- https://nvd.nist.gov/vuln/detail/CVE-2020-15863
- https://ubuntu.com/security/CVE-2020-15863
Frequently Asked Questions
What is CVE-2020-15863?
CVE-2020-15863 is a vulnerability found in the XGMAC Ethernet controller in QEMU before 07-20-2020, which allows a guest user or process to crash the QEMU process on the host, resulting in a denial of service.
What is the severity of CVE-2020-15863?
CVE-2020-15863 has a severity level of 5.3, which is considered medium.
Which software is affected by CVE-2020-15863?
CVE-2020-15863 affects the highbank and midway emulated machines running QEMU before 07-20-2020.
How does CVE-2020-15863 impact the affected software?
CVE-2020-15863 causes a buffer overflow during packet transmission in the XGMAC Ethernet controller in QEMU, which can be exploited by a guest user or process to crash the QEMU process on the host.
Are there any fixes for CVE-2020-15863?
Yes, there are fixes available for CVE-2020-15863. Please refer to the sources listed for more information on the specific fixes.
- collector/nvd-index
- agent/type
- collector/launchpad-cve
- source/Launchpad
- agent/author
- agent/weakness
- agent/severity
- collector/nvd-cve
- source/NVD
- agent/software-canonical-lookup
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- collector/usn-cve
- source/Ubuntu
- agent/references
- agent/remedy
- agent/tags
- agent/description
- agent/first-publish-date
- agent/event
- collector/security-tracker-debian
- source/Debian
- agent/softwarecombine
- agent/trending
- vendor/qemu
- canonical/qemu qemu
- version/qemu qemu/5.0.0
- version/qemu qemu/5.1.0-rc0
- vendor/debian
- canonical/debian debian linux
- version/debian debian linux/10.0
- vendor/canonical
- canonical/canonical ubuntu linux
- version/canonical ubuntu linux/16.04
- version/canonical ubuntu linux/18.04
- version/canonical ubuntu linux/20.04
- package-manager/debian