CVE & CISA-KEV Catalog

CVE-2020-11740

MEDIUM
5.5
CVSS v3
NVD

Description

An issue was discovered in xenoprof in Xen through 4.13.x, allowing guest OS users (without active profiling) to obtain sensitive information about other guests. Unprivileged guests can request to map xenoprof buffers, even if profiling has not been enabled for those guests. These buffers were not scrubbed.

CWE-212

How to fix

Remediation Available
xenDebian
Fixed in:4.11.4-1CVE-2020-11740
Fixed in:4.11.4-1CVE-2020-11740
Fixed in:4.11.4-1CVE-2020-11740
Fixed in:4.11.4-1CVE-2020-11740
libxendevicemodel1Ubuntu
Fixed in:4.11.3+24-g14b62ab3e5-1ubuntu2.3USN-5617-1
libxenevtchn1Ubuntu
Fixed in:4.11.3+24-g14b62ab3e5-1ubuntu2.3USN-5617-1
libxengnttab1Ubuntu
Fixed in:4.11.3+24-g14b62ab3e5-1ubuntu2.3USN-5617-1
libxenmisc4.11Ubuntu
Fixed in:4.11.3+24-g14b62ab3e5-1ubuntu2.3USN-5617-1
xenUbuntu
Fixed in:4.11.3+24-g14b62ab3e5-1ubuntu2.3USN-5617-1
xen-hypervisor-4.11-amd64Ubuntu
Fixed in:4.11.3+24-g14b62ab3e5-1ubuntu2.3USN-5617-1
xen-hypervisor-4.11-arm64Ubuntu
Fixed in:4.11.3+24-g14b62ab3e5-1ubuntu2.3USN-5617-1
xen-hypervisor-4.11-armhfUbuntu
Fixed in:4.11.3+24-g14b62ab3e5-1ubuntu2.3USN-5617-1
xen-utils-4.11Ubuntu
Fixed in:4.11.3+24-g14b62ab3e5-1ubuntu2.3USN-5617-1
xen-utils-commonUbuntu
Fixed in:4.11.3+24-g14b62ab3e5-1ubuntu2.3USN-5617-1
xenstore-utilsUbuntu
Fixed in:4.11.3+24-g14b62ab3e5-1ubuntu2.3USN-5617-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityHigh
IntegrityNone
AvailabilityNone

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Exploit Intelligence

0.43%probability of exploitation in 30 days
35thpercentile

Low risk: more likely to be exploited than 35% of all known CVEs.

References

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.