CVE-2020-13361
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Description
An out-of bounds access flaw was found in the ES1370 audio device emulator of the QEMU. This flaw occurs in the 'audio_pcm_sw_read', while reading an audio byte stream from a channel if the channel frame count is set to a malicious value. A guest user or process may use this flaw to crash the QEMU process on the host, resulting in a denial of service.
Additional information
- Bugzilla 1840980: QEMU: es1370: OOB access due to incorrect frame count leads to DoS
- CWE-787: Out-of-bounds Write
- FAQ: Frequently asked questions about CVE-2020-13361
Common Vulnerability Scoring System (CVSS) Score Details
Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
The following CVSS metrics and score provided are preliminary and subject to review.
Red Hat | NVD | |
---|---|---|
CVSS v3 Base Score | 3.9 | 3.9 |
Attack Vector | Local | Local |
Attack Complexity | High | High |
Privileges Required | High | High |
User Interaction | None | None |
Scope | Changed | Changed |
Confidentiality Impact | None | None |
Integrity Impact | Low | Low |
Availability Impact | Low | Low |
CVSS v3 Vector
Red Hat: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:L/A:L
NVD: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:L/A:L
Acknowledgements
Red Hat would like to thank Hanqing Zhao (SSLab Georgia Tech) and Ren Ding (SSLab Georgia Tech) for reporting this issue.
Frequently Asked Questions
Why is Red Hat's CVSS v3 score or Impact different from other vendors?
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