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CVE-2020-12049

Published: Jun 8, 2020Updated: Nov 21, 2024 Sources: CVE List NVD BDUCWE-404
NVD MITRE
5.5CVSSMEDIUM
EPSS Score
0.6%
Top 57.4%
CISA KEV
Not in KEV
Exploits
3 Known
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:LAC:LPR:LUI:NS:UC:NI:NA:H
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-404

Affected Products

dbusfreedesktopOSS Libraries
ubuntu linuxcanonical
On-premOS
Operating Systems / linux-distro
Debian GNU/LinuxСообщество свободного программного обеспечения
On-premOS
Operating Systems / linux-distro
Astra Linux Special EditionООО «РусБИТех-Астра»
On-premOS
Operating Systems / linux-distro
Astra Linux Common EditionООО «РусБИТех-Астра»
On-premOS
Operating Systems / linux-distro
freedesktoposs-projectOSS Librariesaka freedesktop.org
canonicalcommercialGBOperating Systemsaka canonical ltd.
сообщество свободного программного обеспеченияoss-projectOperating Systemsaka сообщество свободного программного обеспечения, fsf
ооо «русбитех-астра»commercialRUOperating Systemsaka rusbitech-astra
and 4 more affected products View all →

Exploitability

3 exploit sources identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available

References

http://packetstormsecurity.com/files/172840/D-Bus-File-Descriptor-Leak-Denial-Of-Service.html
packetstormsecurity.com
http://www.openwall.com/lists/oss-security/2020/06/04/3
openwall.com
https://gitlab.freedesktop.org/dbus/dbus/-/issues/294
gitlab.freedesktop.org
and 16 more references View all →

Timeline

Published
Jun 8, 2020
Last Updated
Nov 21, 2024

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