CVE & CISA-KEV Catalog

CVE-2020-12049

MEDIUM
5.5
CVSS v3
NVD

Description

An issue was discovered in dbus >= 1.3.0 before 1.12.18. The DBusServer in libdbus, as used in dbus-daemon, leaks file descriptors when a message exceeds the per-message file descriptor limit. A local attacker with access to the D-Bus system bus or another system service's private AF_UNIX socket could use this to make the system service reach its file descriptor limit, denying service to subsequent D-Bus clients.

How to fix

Remediation Available
dbusDebian
Fixed in:1.12.18-1CVE-2020-12049
Fixed in:1.12.18-1CVE-2020-12049
Fixed in:1.12.18-1CVE-2020-12049
Fixed in:1.12.18-1CVE-2020-12049
dbusUbuntu
Fixed in:1.6.18-0ubuntu4.5+esm2USN-4398-2
Fixed in:1.10.6-1ubuntu3.6USN-4398-1
Fixed in:1.12.2-1ubuntu1.2USN-4398-1
Fixed in:1.12.16-2ubuntu2.1USN-4398-1
libdbus-1-3Ubuntu
Fixed in:1.6.18-0ubuntu4.5+esm2USN-4398-2
Fixed in:1.10.6-1ubuntu3.6USN-4398-1
Fixed in:1.12.2-1ubuntu1.2USN-4398-1
Fixed in:1.12.16-2ubuntu2.1USN-4398-1

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

ConfidentialityNone
IntegrityNone
AvailabilityHigh

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

Exploit Intelligence

0.57%probability of exploitation in 30 days
43rdpercentile

Moderate risk: more likely to be exploited than 43% of all known CVEs.

References

Related Vulnerabilities

Other CWE-404 vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2022-44267Medium6.577%-Fix
CVE-2018-8120High7.074%KEV + Ransom-
CVE-2018-8210High7.825%--
CVE-2018-8639High7.822%KEV + Ransom-
CVE-2023-3206Medium5.319%--
CVE-2018-8450High8.816%--
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Markdown

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HTML

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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.