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CVE-2018-16866

Status Candidate

Overview

An out of bounds read was discovered in systemd-journald in the way it parses log messages that terminate with a colon ':'. A local attacker can use this flaw to disclose process memory data. Versions from v221 to v239 are vulnerable.

Related Files

Red Hat Security Advisory 2020-1264-01
Posted Apr 1, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-1264-01 - 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 read vulnerability.

tags | advisory
systems | linux, redhat
advisories | CVE-2018-15686, CVE-2018-16866
SHA-256 | 3b6dc424b7eae52a99a2eaf594a6935518447de894c4caf763921d1dee54c195
Red Hat Security Advisory 2020-0593-01
Posted Feb 25, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-0593-01 - 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. State injection and out-of-bounds read vulnerabilities have been addressed.

tags | advisory, vulnerability
systems | linux, redhat
advisories | CVE-2018-15686, CVE-2018-16866
SHA-256 | 2558b5c10d9bce547ec28cacce9ccb7f155c668ab9ea7a100e7b88633301a2b7
Red Hat Security Advisory 2019-3222-01
Posted Oct 29, 2019
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2019-3222-01 - 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. Out-of-bounds read and state injection vulnerabilities have been addressed.

tags | advisory, vulnerability
systems | linux, redhat
advisories | CVE-2018-15686, CVE-2018-16866
SHA-256 | 577451cf310db1a48ba0a694b200718a00ae7476608a14cab9a14f1716ea0098
Red Hat Security Advisory 2019-2091-01
Posted Aug 6, 2019
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2019-2091-01 - 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. An out-of-bounds read alongside various other issues have been addressed.

tags | advisory
systems | linux, redhat
advisories | CVE-2018-15686, CVE-2018-16866, CVE-2018-16888
SHA-256 | cad79e179794f9db3938298ad892ddea455c7416f87b0c3de0c320e1d703beac
System Down: A systemd-journald Exploit
Posted May 13, 2019
Authored by Qualys Security Advisory

This is the systemd-journald exploit produced by Qualys that demonstrates the vulnerabilities as highlighted in CVE-2018-16865 and CVE-2018-16866.

tags | exploit, vulnerability
systems | unix
advisories | CVE-2018-16865, CVE-2018-16866
SHA-256 | d1b7894dd26a8b8f09a1ab5daecbd7e72976370c01e517c417e68ce0cbf49297
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
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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