5.5

CVE-2019-6454

Exploit

An issue was discovered in sd-bus in systemd 239. bus_process_object() in libsystemd/sd-bus/bus-objects.c allocates a variable-length stack buffer for temporarily storing the object path of incoming D-Bus messages. An unprivileged local user can exploit this by sending a specially crafted message to PID1, causing the stack pointer to jump over the stack guard pages into an unmapped memory region and trigger a denial of service (systemd PID1 crash and kernel panic).

Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Systemd Project ≫ Systemd Version239
Opensuse ≫ Leap Version15.0
Debian ≫ Debian Linux Version8.0
Debian ≫ Debian Linux Version9.0
Fedoraproject ≫ Fedora Version29
Canonical ≫ Ubuntu Linux Version16.04 SwEditionlts
Canonical ≫ Ubuntu Linux Version18.04 SwEditionlts
Canonical ≫ Ubuntu Linux Version18.10
Redhat ≫ Enterprise Linux Version8.0
Redhat ≫ Enterprise Linux Eus Version7.4
Redhat ≫ Enterprise Linux Eus Version7.5
Redhat ≫ Enterprise Linux Eus Version8.1
Redhat ≫ Enterprise Linux Eus Version8.2
Redhat ≫ Enterprise Linux Eus Version8.4
Mcafee ≫ Web Gateway Version < 7.7.2.21
Mcafee ≫ Web Gateway Version >= 7.8.0 < 7.8.2.8
Mcafee ≫ Web Gateway Version >= 8.0.0 < 8.1.1
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.11% 0.309
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
nvd@nist.gov 4.9 3.9 6.9
AV:L/AC:L/Au:N/C:N/I:N/A:C
CWE-787 Out-of-bounds Write

The product writes data past the end, or before the beginning, of the intended buffer.

http://www.openwall.com/lists/oss-security/2021/07/20/2
Third Party Advisory
Exploit
Mailing List
http://www.openwall.com/lists/oss-security/2019/02/18/3
Patch
Third Party Advisory
Mailing List
http://www.securityfocus.com/bid/107081
Third Party Advisory
VDB Entry
https://usn.ubuntu.com/3891-1/
Third Party Advisory