CVE-2020-12049

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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
5.5 MEDIUM
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
mitreCNA
---
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 4%
VendorProductVersion
freedesktopdbus
1.3.0 ≤
𝑥
< 1.12.18
canonicalubuntu_linux
12.04
canonicalubuntu_linux
14.04
canonicalubuntu_linux
16.04
canonicalubuntu_linux
18.04
canonicalubuntu_linux
19.10
canonicalubuntu_linux
20.04
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
dbus
bullseye
1.12.28-0+deb11u1
fixed
bullseye (security)
1.12.24-0+deb11u1
fixed
bookworm
1.14.10-1~deb12u1
fixed
sid
1.14.10-6
fixed
trixie
1.14.10-6
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
dbus
focal
Fixed 1.12.16-2ubuntu2.1
released
eoan
Fixed 1.12.14-1ubuntu2.1
released
bionic
Fixed 1.12.2-1ubuntu1.2
released
xenial
Fixed 1.10.6-1ubuntu3.6
released
trusty
Fixed 1.6.18-0ubuntu4.5+esm2
released