CVE details
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.
Affected ports (2)
| Port | Package | Version | Status | Maintainer |
|---|---|---|---|---|
| emulators/qemu-cheri | qemu-cheri | 0.d20260108 | unaddressed | brooks@FreeBSD.org |
| emulators/qemu-user-static | qemu-user-static | 3.1.0_16 | unaddressed | emulation@FreeBSD.org |
Template for a VuXML entry
Range taken from the CVE record, check it before committing. make newentry in security/vuxml creates the vid.
<vuln vid="FIXME (make newentry)">
<topic>FIXME -- FIXME</topic>
<affects>
<package>
<name>qemu-cheri</name>
<range><lt>FIXME</lt></range>
</package>
<package>
<name>qemu-user-static</name>
<range><lt>FIXME</lt></range>
</package>
</affects>
<description>
<body xmlns="http://www.w3.org/1999/xhtml">
<p>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.</p>
</body>
</description>
<references>
<cvename>CVE-2020-15863</cvename>
<url>https://nvd.nist.gov/vuln/detail/CVE-2020-15863</url>
</references>
<dates>
<discovery>2020-07-28</discovery>
<entry>2026-10-25</entry>
</dates>
</vuln>