Vulnerability 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.
Vulnerability category: OverflowMemory CorruptionDenial of service
Products affected by CVE-2020-15863
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*
- cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:5.1.0:rc0:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-15863
0.07%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 32 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-15863
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.4
|
MEDIUM | AV:L/AC:M/Au:N/C:P/I:P/A:P |
3.4
|
6.4
|
NIST | |
|
5.3
|
MEDIUM | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L |
1.1
|
3.7
|
NIST |
CWE ids for CVE-2020-15863
-
The product writes data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2020-15863
-
https://www.debian.org/security/2020/dsa-4760
Debian -- Security Information -- DSA-4760-1 qemuThird Party Advisory
-
http://www.openwall.com/lists/oss-security/2020/07/22/1
oss-security - CVE-2020-15863 QEMU: stack-based overflow in xgmac_enet_send() in hw/net/xgmac.cMailing List;Patch;Third Party Advisory
-
https://git.qemu.org/?p=qemu.git;a=commitdiff;h=5519724a13664b43e225ca05351c60b4468e4555
git.qemu.org Git - qemu.git/commitdiffPatch;Vendor Advisory
-
https://lists.nongnu.org/archive/html/qemu-devel/2020-07/msg05745.html
Re: [PATCH] hw/net/xgmac: Fix buffer overflow in xgmac_enet_send()Mailing List;Patch;Third Party Advisory
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http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00024.html
[security-announce] openSUSE-SU-2020:1664-1: important: Security updateMailing List;Third Party Advisory
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https://lists.nongnu.org/archive/html/qemu-devel/2020-07/msg03497.html
[PATCH] hw/net/xgmac: Fix buffer overflow in xgmac_enet_send()Mailing List;Patch;Third Party Advisory
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https://security.gentoo.org/glsa/202208-27
QEMU: Multiple Vulnerabilities (GLSA 202208-27) — Gentoo securityThird Party Advisory
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https://usn.ubuntu.com/4467-1/
USN-4467-1: QEMU vulnerabilities | Ubuntu security notices | UbuntuThird Party Advisory
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