CVE Vulnerabilities

CVE-2020-13659

NULL Pointer Dereference

Published: Jun 02, 2020 | Modified: Nov 16, 2022
CVSS 3.x
2.5
LOW
Source:
NVD
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:N/A:L
CVSS 2.x
1.9 LOW
AV:L/AC:M/Au:N/C:N/I:N/A:P
RedHat/V2
RedHat/V3
2.5 LOW
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:N/A:L
Ubuntu
LOW

address_space_map in exec.c in QEMU 4.2.0 can trigger a NULL pointer dereference related to BounceBuffer.

Weakness

A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit.

Affected Software

Name Vendor Start Version End Version
Qemu Qemu 4.2.0 (including) 4.2.0 (including)
Qemu Ubuntu bionic *
Qemu Ubuntu eoan *
Qemu Ubuntu focal *
Qemu Ubuntu trusty *
Qemu Ubuntu trusty/esm *
Qemu Ubuntu xenial *
Qemu-kvm Ubuntu precise/esm *

Potential Mitigations

References