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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
SHA-256 | acea42bd46edaf2078173eb391f758e7695ba32e4216ac70d687b67255ff6bae
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
SHA-256 | 2460a4ff120455c4fb22e6a4569df946a8636e43beb21599764d129ef5f68aad
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
SHA-256 | a5a8677c8603e96cdd87eb005aaaf0c1f9ed17b0b6b3a027414690708ca0df13
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
SHA-256 | 5592009185b8f2475f7dbf638898a17554a141582bcb0a280f2b2ccb019188a1
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
SHA-256 | ff905303c6db54649d5fbd7e6c6d3027bf65a74efe6d252c36eae5d30cb0db93
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
SHA-256 | 6fcd5d14a723cf02465650b3333098f9f2c57140c8be2ebe89550de8bb349677
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
SHA-256 | 192c49fe3acc8444a71a8d0209cd1bf76aca4a4c7da8f91752ffbfe5a807a352
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
SHA-256 | f1905ee4f2f177d9148c8dde2b87c29cde068f90652dff3c397a9679c408cf42
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
SHA-256 | 313129e580e1a6c997a4d40ecc4c3d8bc4808c5924d9fa90ca3eaf9e11f94bd2
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
SHA-256 | 19a689d664d755e0625285bb3e35b7cb5791449a424da89709b8ef0bf6fdcb91
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