ALT-PU-2021-1196-1
Closed vulnerabilities
Published: 2020-11-19
BDU:2021-05257
Уязвимость эмуляции USB EHCI эмулятора аппаратного обеспечения QEMU, связанная с неправильным учетом ресурсов внешних эмуляторов, позволяющая нарушителю вызвать отказ в обслуживании
Severity: LOW (3.2)
Vector: AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:L
References:
Published: 2020-12-02
Modified: 2024-11-21
Modified: 2024-11-21
CVE-2020-25723
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
References:
- [oss-security] 20201222 CVE-2020-25723 QEMU: assertion failure through usb_packet_unmap() in hw/usb/hcd-ehci.c
- [oss-security] 20201222 CVE-2020-25723 QEMU: assertion failure through usb_packet_unmap() in hw/usb/hcd-ehci.c
- https://bugzilla.redhat.com/show_bug.cgi?id=1898579
- https://bugzilla.redhat.com/show_bug.cgi?id=1898579
- [debian-lts-announce] 20220905 [SECURITY] [DLA 3099-1] qemu security update
- [debian-lts-announce] 20220905 [SECURITY] [DLA 3099-1] qemu security update
- https://security.netapp.com/advisory/ntap-20201218-0004/
- https://security.netapp.com/advisory/ntap-20201218-0004/