Medium severity · published Jan 30, 2021
CVE-2020-17380
A heap-based buffer overflow was found in QEMU through 5.0.0 in the SDHCI device emulation support
6.3
CVSS
0.4%
EPSS
No
On KEV
Description
A heap-based buffer overflow was found in QEMU through 5.0.0 in the SDHCI device emulation support. It could occur while doing a multi block SDMA transfer via the sdhci_sdma_transfer_multi_blocks() routine in hw/sd/sdhci.c. A guest user or process could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition, or potentially execute arbitrary code with privileges of the QEMU process on the host.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
Low
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 38% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
9.0 · source: NVD
QE
Qemu · Qemu
through 5.0.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-17380
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-17380
Mailing List
http://www.openwall.com/lists/oss-security/2021/03/09/1
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=1862167
Mailing List
https://lists.debian.org/debian-lts-announce/2021/04/msg00009.html
Mailing List
https://lists.nongnu.org/archive/html/qemu-devel/2020-09/msg01175.html
Third Party Advisory
https://security.netapp.com/advisory/ntap-20210312-0003/
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