Vulnerability CVE-2020-25723: Information
Description
A reachable assertion issue was found in the USB EHCI emulation code of QEMU. It could occur while processing USB requests due to missing handling of DMA memory map failure. A malicious privileged user within the guest may abuse this flaw to send bogus USB requests and crash the QEMU process on the host, resulting in a denial of service.
Severity: LOW (3.2) Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:L
Fixed packages
Package name | Branch | Fixed in version | Version from repository | Errata ID | Task # | State |
|---|---|---|---|---|---|---|
| qemu | sisyphus | 5.2.0-alt1 | 8.2.3-alt1 | ALT-PU-2020-3527-1 | 263463 | Fixed |
| qemu | sisyphus_e2k | 7.2.0-alt3.E2K.3 | 7.2.0-alt3.E2K.4 | ALT-PU-2024-1953-1 | - | Fixed |
| qemu | p10 | 5.2.0-alt1 | 8.2.2-alt0.p10.1 | ALT-PU-2020-3527-1 | 263463 | Fixed |
| qemu | p10_e2k | 7.2.0-alt3.E2K.0 | 7.2.0-alt3.E2K.3 | ALT-PU-2023-6766-1 | - | Fixed |
| qemu | p9 | 4.2.1-alt4 | 5.2.0-alt6 | ALT-PU-2020-3559-1 | 263856 | Fixed |
| qemu | c10f1 | 5.2.0-alt1 | 8.2.2-alt0.p10.1 | ALT-PU-2020-3527-1 | 263463 | Fixed |
| qemu | c9f2 | 5.2.0-alt6 | 5.2.0-alt6.c9.1 | ALT-PU-2021-1964-1 | 273330 | Fixed |
References to Advisories, Solutions, and Tools
Hyperlink | Resource |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1898579 |
|
| https://security.netapp.com/advisory/ntap-20201218-0004/ |
|
| [oss-security] 20201222 CVE-2020-25723 QEMU: assertion failure through usb_packet_unmap() in hw/usb/hcd-ehci.c |
|
| [debian-lts-announce] 20220905 [SECURITY] [DLA 3099-1] qemu security update |
|