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2.1
CVSSv2

CVE-2020-35504

Published: 28/05/2021 Updated: 22/09/2022
CVSS v2 Base Score: 2.1 | Impact Score: 2.9 | Exploitability Score: 3.9
CVSS v3 Base Score: 6 | Impact Score: 4 | Exploitability Score: 1.5
VMScore: 187
Vector: AV:L/AC:L/Au:N/C:N/I:N/A:P
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Vulnerability Summary

A NULL pointer dereference flaw was found in the SCSI emulation support of QEMU in versions prior to 6.0.0. This flaw allows a privileged guest user to crash the QEMU process on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability.

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Vendor Advisories

Debian CVElist Bug Report Logs: CVE-2020-35504
Debian Bug report logs - #979679 CVE-2020-35504 Package: qemu; Maintainer for qemu is Debian QEMU Team <pkg-qemu-devel@listsaliothdebianorg>; Source for qemu is src:qemu (PTS, buildd, popcon) Reported by: Moritz Muehlenhoff <jmm@debianorg> Date: Sat, 9 Jan 2021 23:00:04 UTC Severity: normal Tags: security, upst ...
Arch Linux Issues:
A NULL pointer dereference issue was found in the SCSI emulation support of QEMU It could occur in the scsi_req_continue() function in hw/scsi/scsi-busc while handling the 'Information Transfer' command (CMD_TI) of the am53c974 SCSI host bus adapter A privileged guest user may abuse this issue to crash the QEMU process on the host, resulting in ...

Mailing Lists

Full Disclosure: QEMU: ESP security fixes
<!--X-Body-Begin--> <!--X-User-Header--> oss-sec mailing list archives <!--X-User-Header-End--> <!--X-TopPNI--> By Date By Thread </form> <!--X-TopPNI-End--> <!--X-MsgBody--> <!--X-Subject-Header-Begin--> QEMU: ESP security fixes <!--X-Subject-Header-End--> <!--X-Head-of-Message--> From: Mauro Matteo Cascella &lt;mcascell () re ...

References

CWE-476CWE-476http://www.openwall.com/lists/oss-security/2021/04/16/3https://www.openwall.com/lists/oss-security/2021/04/16/3https://bugzilla.redhat.com/show_bug.cgi?id=1909766https://security.netapp.com/advisory/ntap-20210713-0006/https://security.gentoo.org/glsa/202208-27https://lists.debian.org/debian-lts-announce/2022/09/msg00008.htmlhttps://bugs.debian.org/cgi-bin/bugreport.cgi?bug=979679https://nvd.nist.govhttps://security.archlinux.org/CVE-2020-35504
CVSSv2
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CVSSv3
VMScore
Recommendations:
CVE-2021-35000CVE-2024-4439unauthorizedCVE-2024-0042CVE-2024-31848CVE-2023-40694cache poisoningCVE-2024-23707firmware
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