Medium severity · published Dec 31, 2020
CVE-2019-20808
In QEMU 4.1.0, an out-of-bounds read flaw was found in the ATI VGA implementation
6.5
CVSS
0.3%
EPSS
No
On KEV
Description
In QEMU 4.1.0, an out-of-bounds read flaw was found in the ATI VGA implementation. It occurs in the ati_cursor_define() routine while handling MMIO write operations through the ati_mm_write() callback. A malicious guest could abuse this flaw to crash the QEMU process, resulting in a denial of service.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 27% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
QE
Qemu · Qemu
4.1.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-20808
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-20808
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=1841136
git.qemu.org
https://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=aab0e2a661b2b6bf7915c0aefe807fb60d6d9d13
Third Party Advisory
https://security.netapp.com/advisory/ntap-20210205-0003/
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