CVE-2020-27616 : ati_2d_blt in hw/display/ati_2d.c in QEMU 4.2.1 can encounter an outside-limits

ati_2d_blt in hw/display/ati_2d.c in QEMU 4.2.1 can encounter an outside-limits situation in a calculation. A guest can crash the QEMU process.

Published 2020-11-06 08:15:14

Updated 2022-01-01 18:18:14

Source MITRE

View at NVD, CVE.org

Products affected by CVE-2020-27616

Qemu » Qemu » Version: 4.2.1
cpe:2.3:a:qemu:qemu:4.2.1:*:*:*:*:*:*:*
Matching versions

EPSS FAQ

0.35%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 54 %

Percentile, the proportion of vulnerabilities that are scored at or less

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
4.0	MEDIUM	AV:N/AC:L/Au:S/C:N/I:N/A:P	8.0	2.9	NIST
Access Vector: Network Access Complexity: Low Authentication: Single Confidentiality Impact: None Integrity Impact: None Availability Impact: Partial
6.5	MEDIUM	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H	2.8	3.6	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: Low User Interaction: None Scope: Unchanged Confidentiality: None Integrity: None Availability: High

CWE-682 Incorrect Calculation

The product performs a calculation that generates incorrect or unintended results that are later used in security-critical decisions or resource management.

Assigned by: nvd@nist.gov (Primary)

https://security.netapp.com/advisory/ntap-20201202-0002/

November 2020 QEMU Vulnerabilities in NetApp Products | NetApp Product Security
Third Party Advisory

CVEs referencing this url
http://www.openwall.com/lists/oss-security/2020/11/03/2

oss-security - CVE-2020-27616 QEMU: ati-vga: potential crash via invalid x y parameter values
Mailing List;Patch;Third Party Advisory
https://lists.nongnu.org/archive/html/qemu-devel/2020-10/msg05018.html

[PATCH] ati: mask x y display parameter values
Mailing List;Patch;Third Party Advisory

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