CVE-2021-3416
Published: 18 March 2021
A potential stack overflow via infinite loop issue was found in various NIC emulators of QEMU in versions up to and including 5.2.0. The issue occurs in loopback mode of a NIC wherein reentrant DMA checks get bypassed. A guest user/process may use this flaw to consume CPU cycles or crash the QEMU process on the host resulting in DoS scenario.
Priority
Status
Package | Release | Status |
---|---|---|
qemu Launchpad, Ubuntu, Debian |
bionic |
Released
(1:2.11+dfsg-1ubuntu7.37)
|
focal |
Released
(1:4.2-3ubuntu6.17)
|
|
groovy |
Released
(1:5.0-5ubuntu9.9)
|
|
hirsute |
Not vulnerable
(1:5.2+dfsg-9ubuntu3)
|
|
impish |
Not vulnerable
(1:5.2+dfsg-9ubuntu3)
|
|
jammy |
Not vulnerable
(1:5.2+dfsg-9ubuntu3)
|
|
kinetic |
Not vulnerable
(1:5.2+dfsg-9ubuntu3)
|
|
lunar |
Not vulnerable
(1:5.2+dfsg-9ubuntu3)
|
|
mantic |
Not vulnerable
(1:5.2+dfsg-9ubuntu3)
|
|
noble |
Not vulnerable
(1:5.2+dfsg-9ubuntu3)
|
|
trusty |
Needed
|
|
upstream |
Needs triage
|
|
xenial |
Needed
|
|
Patches: upstream: https://git.qemu.org/?p=qemu.git;a=commit;h=705df5466c98f3efdd2b68d3b31dad86858acad7 upstream: https://git.qemu.org/?p=qemu.git;a=commit;h=1caff0340f49c93d535c6558a5138d20d475315c upstream: https://git.qemu.org/?p=qemu.git;a=commit;h=331d2ac9ea307c990dc86e6493e8f0c48d14bb33 upstream: https://git.qemu.org/?p=qemu.git;a=commit;h=26194a58f4eb83c5bdf4061a1628508084450ba1 upstream: https://git.qemu.org/?p=qemu.git;a=commit;h=8c92060d3c0248bd4d515719a35922cd2391b9b4 upstream: https://git.qemu.org/?p=qemu.git;a=commit;h=8c552542b81e56ff532dd27ec6e5328954bdda73 upstream: https://git.qemu.org/?p=qemu.git;a=commit;h=5311fb805a4403bba024e83886fa0e7572265de4 upstream: https://git.qemu.org/?p=qemu.git;a=commit;h=99ccfaa1edafd79f7a3a0ff7b58ae4da7c514928 upstream: https://git.qemu.org/?p=qemu.git;a=commit;h=e73adfbeec9d4e008630c814759052ed945c3fed upstream: https://git.qemu.org/?p=qemu.git;a=commit;h=37cee01784ff0df13e5209517e1b3594a5e792d1 |
||
qemu-kvm Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
focal |
Does not exist
|
|
groovy |
Does not exist
|
|
hirsute |
Does not exist
|
|
impish |
Does not exist
|
|
jammy |
Does not exist
|
|
kinetic |
Does not exist
|
|
lunar |
Does not exist
|
|
mantic |
Does not exist
|
|
noble |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Needs triage
|
|
xenial |
Does not exist
|
Severity score breakdown
Parameter | Value |
---|---|
Base score | 6.0 |
Attack vector | Local |
Attack complexity | Low |
Privileges required | High |
User interaction | None |
Scope | Changed |
Confidentiality | None |
Integrity impact | None |
Availability impact | High |
Vector | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H |
References
- https://lists.gnu.org/archive/html/qemu-devel/2021-02/msg07431.html
- https://lists.gnu.org/archive/html/qemu-devel/2021-02/msg07484.html
- https://www.openwall.com/lists/oss-security/2021/02/26/1
- https://ubuntu.com/security/notices/USN-5010-1
- https://www.cve.org/CVERecord?id=CVE-2021-3416
- NVD
- Launchpad
- Debian