PT-2020-6477 · Qemu+5 · Qemu+5
Gaoning Pan
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Published
2020-11-06
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Updated
2022-01-01
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CVE-2020-27616
CVSS v3.1
6.5
Medium
| Vector | AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
QEMU version 4.2.1
Description
The issue is related to incorrect calculations in the
ati 2d blt function within the hw/display/ati 2d.c file of the QEMU emulator. This can lead to an outside-limits situation in a calculation, allowing a remote attacker to cause a denial of service. A guest can potentially crash the QEMU process.Recommendations
For QEMU version 4.2.1, consider disabling the
ati 2d blt function in the hw/display/ati 2d.c file as a temporary workaround to prevent exploitation until a patch is available. Restrict access to the hw/display/ati 2d.c module to minimize the risk of crashing the QEMU process. At the moment, there is no information about a newer version that contains a fix for this vulnerability. Found an issue in the description? Have something to add? Feel free to write us 👾
Weakness Enumeration
Related Identifiers
Affected Products
Alt Linux
Astra Linux
Linuxmint
Qemu
Suse
Ubuntu