CVE-2020-27152
Aliases:UBUNTU-CVE-2020-27152DEBIAN-CVE-2020-27152
Advisory lineage Upstream: 0 Downstream: 7
Modified
Published: 06 Nov 2020, 07:46
Last modified:04 Aug 2024, 16:11
Vulnerability Summary
Overall Risk (default)
medium
32/100 CVSS Score
5.5 MEDIUM
v3.1 (nvd)
EPSS Score
0.57% LOW
1% probability +0.50%
KEV
Not listed
Ransomware
No reports
Public exploits
1 found
Dark Web
Not detected
Timeline
06 Nov 2020, 07:46
Published
Vulnerability first disclosed
04 Aug 2024, 16:11
Last Modified
Vulnerability information updated
Description
An issue was discovered in ioapic_lazy_update_eoi in arch/x86/kvm/ioapic.c in the Linux kernel before 5.9.2. It has an infinite loop related to improper interaction between a resampler and edge triggering, aka CID-77377064c3a9.
CVSS Metrics
- v3.1•MEDIUM•Score: 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- v2.0•LOW•Score: 2.1AV:L/AC:L/Au:N/C:N/I:N/A:P
EPSS Trends
Current EPSS score: 0.57%• Percentile: 46%
Techniques & Countermeasures
- CWE-835•Loop with Unreachable Exit Condition ('Infinite Loop')
The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop.
Affected Systems
- debian•linux
< 5.9.6-1 | < 5.9.6-1 | < 5.9.6-1 | < 5.9.6-1
- ubuntu•linux
all
- ubuntu•linux-aws
all
- ubuntu•linux-aws-5.0
all
- ubuntu•linux-aws-5.3
all
- ubuntu•linux-azure
all | all
- ubuntu•linux-azure-5.3
all
- ubuntu•linux-azure-edge
all
- ubuntu•linux-gcp
all
- ubuntu•linux-gcp-5.3
all
- ubuntu•linux-gcp-edge
all
- ubuntu•linux-hwe
all
- ubuntu•linux-hwe-5.8
< 5.8.0-31.33~20.04.1
- ubuntu•linux-hwe-edge
all | all
- ubuntu•linux-lts-xenial
all
- ubuntu•linux-oem-5.6
< 5.6.0-1048.52
- ubuntu•linux-oracle-5.0
all
- ubuntu•linux-oracle-5.3
all
- ubuntu•linux-raspi2
all
- linux•linux_kernel
< 5.9.2
References (11)
- https://bugzilla.kernel.org/show_bug.cgi?id=208767
- http://www.openwall.com/lists/oss-security/2020/11/03/1
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=77377064c3a94911339f13ce113b3abf265e06da
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.9.2
- https://ubuntu.com/security/CVE-2020-27152
- https://bugzilla.redhat.com/show_bug.cgi?id=1888886
- https://www.openwall.com/lists/oss-security/2020/11/03/1
- https://ubuntu.com/security/notices/USN-4659-1
- https://ubuntu.com/security/notices/USN-4752-1
- https://www.cve.org/CVERecord?id=CVE-2020-27152
- https://security-tracker.debian.org/tracker/CVE-2020-27152