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CVE-2018-16864

Status Candidate

Overview

An allocation of memory without limits, that could result in the stack clashing with another memory region, was discovered in systemd-journald when a program with long command line arguments calls syslog. A local attacker may use this flaw to crash systemd-journald or escalate his privileges. Versions through v240 are vulnerable.

Related Files

Red Hat Security Advisory 2019-2402-01
Posted Aug 7, 2019
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2019-2402-01 - The systemd packages contain systemd, a system and service manager for Linux, compatible with the SysV and LSB init scripts. It provides aggressive parallelism capabilities, uses socket and D-Bus activation for starting services, offers on-demand starting of daemons, and keeps track of processes using Linux cgroups. Stack overflow vulnerabilities have been addressed.

tags | advisory, overflow, vulnerability
systems | linux, redhat
advisories | CVE-2018-16864, CVE-2018-16865
MD5 | dd8ba4780ffe263a60830acaa87481c4
Gentoo Linux Security Advisory 201903-07
Posted Mar 11, 2019
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 201903-7 - Multiple vulnerabilities have been found in systemd, the worst of which may allow execution of arbitrary code. Versions less than 239-r4 are affected.

tags | advisory, arbitrary, vulnerability
systems | linux, gentoo
advisories | CVE-2018-16864, CVE-2018-16865, CVE-2018-16866, CVE-2019-6454
MD5 | 54c0e1f2f9097feadba5e834cb7254c0
Red Hat Security Advisory 2019-0361-01
Posted Feb 18, 2019
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2019-0361-01 - The RHV-M Virtual Appliance automates the process of installing and configuring the Red Hat Virtualization Manager. The appliance is available to download as an OVA file from the Customer Portal. Issues addressed include stack overflow vulnerabilities.

tags | advisory, overflow, vulnerability
systems | linux, redhat
advisories | CVE-2018-16864, CVE-2018-16865
MD5 | 523f26d20691fc01d67553236bb8e3eb
Red Hat Security Advisory 2019-0342-01
Posted Feb 13, 2019
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2019-0342-01 - The redhat-virtualization-host packages provide the Red Hat Virtualization Host. These packages include redhat-release-virtualization-host, ovirt-node, and rhev-hypervisor. Red Hat Virtualization Hosts are installed using a special build of Red Hat Enterprise Linux with only the packages required to host virtual machines. RHVH features a Cockpit user interface for monitoring the host's resources and performing administrative tasks. Issues addressed include stack overflow vulnerabilities.

tags | advisory, overflow, vulnerability
systems | linux, redhat
advisories | CVE-2018-16864, CVE-2018-16865
MD5 | b315858c5cb7cf19e44c9f1cff2f297a
Red Hat Security Advisory 2019-0271-01
Posted Feb 5, 2019
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2019-0271-01 - The systemd packages contain systemd, a system and service manager for Linux, compatible with the SysV and LSB init scripts. It provides aggressive parallelism capabilities, uses socket and D-Bus activation for starting services, offers on-demand starting of daemons, and keeps track of processes using Linux cgroups. Issues addressed include a stack overflow vulnerability.

tags | advisory, overflow
systems | linux, redhat
advisories | CVE-2018-16864, CVE-2018-16865
MD5 | 96952e7cdd8c6e92bb91ee62f435fec3
Red Hat Security Advisory 2019-0204-01
Posted Jan 29, 2019
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2019-0204-01 - The systemd packages contain systemd, a system and service manager for Linux, compatible with the SysV and LSB init scripts. It provides aggressive parallelism capabilities, uses socket and D-Bus activation for starting services, offers on-demand starting of daemons, and keeps track of processes using Linux cgroups. Issues addressed include a stack overflow vulnerability.

tags | advisory, overflow
systems | linux, redhat
advisories | CVE-2018-16864, CVE-2018-16865
MD5 | c6f23ae61ffb9398b3a0b9b135e7e04c
Red Hat Security Advisory 2019-0049-01
Posted Jan 14, 2019
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2019-0049-01 - The systemd packages contain systemd, a system and service manager for Linux, compatible with the SysV and LSB init scripts. It provides aggressive parallelism capabilities, uses socket and D-Bus activation for starting services, offers on-demand starting of daemons, and keeps track of processes using Linux cgroups. Issues addressed include an out-of-bounds heap write and stack overflows.

tags | advisory, overflow
systems | linux, redhat
advisories | CVE-2018-15688, CVE-2018-16864, CVE-2018-16865
MD5 | e4ea3d6803d2cce66a1c28ddcf5ee966
Debian Security Advisory 4367-1
Posted Jan 14, 2019
Authored by Debian | Site debian.org

Debian Linux Security Advisory 4367-1 - The Qualys Research Labs discovered multiple vulnerabilities in systemd-journald. Two memory corruption flaws, via attacker-controlled alloca()s (CVE-2018-16864, CVE-2018-16865) and an out-of-bounds read flaw leading to an information leak (CVE-2018-16866), could allow an attacker to cause a denial of service or the execution of arbitrary code.

tags | advisory, denial of service, arbitrary, vulnerability
systems | linux, debian
advisories | CVE-2018-16864, CVE-2018-16865, CVE-2018-16866
MD5 | 52119bef744619b328f6429303d66914
Ubuntu Security Notice USN-3855-1
Posted Jan 11, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3855-1 - It was discovered that systemd-journald allocated variable-length buffers for certain message fields on the stack. A local attacker could potentially exploit this to cause a denial of service, or execute arbitrary code. It was discovered that systemd-journald allocated variable-length arrays of objects representing message fields on the stack. A local attacker could potentially exploit this to cause a denial of service, or execute arbitrary code. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, local
systems | linux, ubuntu
advisories | CVE-2018-16864, CVE-2018-16865, CVE-2018-16866
MD5 | 42433c95e77000de53479462231b8fa3
systemd-journald Memory Corruption / Information Leak
Posted Jan 9, 2019
Authored by Qualys Security Advisory

This is a thorough analysis of how Qualys approached exploiting three vulnerabilities in systemd-journald. Although they have not released formal exploits yet, they detail in here is useful in understanding the flaws.

tags | advisory, vulnerability
advisories | CVE-2018-16864, CVE-2018-16865, CVE-2018-16866
MD5 | 5e1ba71c0b7e7dbafebb77bbd2703730
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