CVE-2020-35506 — Use After Free in Qemu

CWE-416 — Use After Free6 documents6 sources
Severity
6.7MEDIUMNVD
EPSS
0.0%
top 91.59%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
QemuDebian QemuMsrc CM1 Qemu-kvm 4.2.0-37 ON CBL Mariner 1.0
Timeline
PublishedMay 28
Latest updateMay 24

Description

A use-after-free vulnerability was found in the am53c974 SCSI host bus adapter emulation of QEMU in versions before 6.0.0 during the handling of the 'Information Transfer' command (CMD_TI). This flaw allows a privileged guest user to crash the QEMU process on the host, resulting in a denial of service or potential code execution with the privileges of the QEMU process.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:HExploitability: 0.8 | Impact: 5.9

Affected Packages5 packages

▶NVDqemu/qemu< 6.0.0
▶debiandebian/qemu< qemu 1:6.0+dfsg-3 (bookworm)
▶Debianqemu/qemu< 1:6.0+dfsg-3+2
▶CVEListV5qemu/qemuqemu 6.0.0

🔴Vulnerability Details

2
GHSA
GHSA-qfjc-pj3q-qmpf: A use-after-free vulnerability was found in the am53c974 SCSI host bus adapter emulation of QEMU in versions before 6↗2022-05-24
▶
OSV
CVE-2020-35506: A use-after-free vulnerability was found in the am53c974 SCSI host bus adapter emulation of QEMU in versions before 6↗2021-05-28
▶

📋Vendor Advisories

3
Microsoft
A use-after-free vulnerability was found in the am53c974 SCSI host bus adapter emulation of QEMU in versions before 6.0.0 during the handling of the 'Information Transfer' command (CMD_TI). This flaw ↗2021-05-11
▶
Red Hat
QEMU: use after free vulnerability in esp_do_dma() in hw/scsi/esp.c↗2020-12-22
▶
Debian
CVE-2020-35506: qemu - A use-after-free vulnerability was found in the am53c974 SCSI host bus adapter e...↗2020
▶