Ubuntu.comUB:CVE-2021-3416CVE-2021-3416
6 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
2.1 Low
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:L/AC:L/Au:N/C:N/I:N/A:P
0.001 Low
EPSS
Percentile
17.6%
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.
References
launchpad.net/bugs/cve/CVE-2021-3416
lists.gnu.org/archive/html/qemu-devel/2021-02/msg07431.html
lists.gnu.org/archive/html/qemu-devel/2021-02/msg07484.html
nvd.nist.gov/vuln/detail/CVE-2021-3416
security-tracker.debian.org/tracker/CVE-2021-3416
ubuntu.com/security/notices/USN-5010-1
www.cve.org/CVERecord?id=CVE-2021-3416
www.openwall.com/lists/oss-security/2021/02/26/1
Related
6 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
2.1 Low
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:L/AC:L/Au:N/C:N/I:N/A:P
0.001 Low
EPSS
Percentile
17.6%