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CVE-2020-11947

Published: 31 December 2020

iscsi_aio_ioctl_cb in block/iscsi.c in QEMU 4.1.0 has a heap-based buffer over-read that may disclose unrelated information from process memory to an attacker.

Priority

Medium

Cvss 3 Severity Score

3.8

Score breakdown

Status

Package Release Status
qemu-kvm
Launchpad, Ubuntu, Debian
upstream Needs triage

trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

jammy Does not exist

impish Does not exist

kinetic Does not exist

lunar Does not exist

qemu
Launchpad, Ubuntu, Debian
upstream Needs triage

trusty Needed

bionic
Released (1:2.11+dfsg-1ubuntu7.35)
focal
Released (1:4.2-3ubuntu6.12)
xenial
Released (1:2.5+dfsg-5ubuntu10.49)
groovy Not vulnerable
(1:5.0-5ubuntu9.2)
hirsute Not vulnerable
(1:5.2+dfsg-2ubuntu1)
jammy Not vulnerable
(1:5.2+dfsg-2ubuntu1)
impish Not vulnerable
(1:5.2+dfsg-2ubuntu1)
kinetic Not vulnerable
(1:5.2+dfsg-2ubuntu1)
lunar Not vulnerable
(1:5.2+dfsg-2ubuntu1)
Patches:
upstream: https://git.qemu.org/?p=qemu.git;a=commit;h=ff0507c239a246fd7215b31c5658fc6a3ee1e4c5

Severity score breakdown

Parameter Value
Base score 3.8
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Scope Changed
Confidentiality Low
Integrity impact None
Availability impact None
Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N