high
7.8
CWE
770 119
Advisory Published
CVE Published
CVE Published
Updated

CVE-2018-16865: Buffer Overflow

First published: Tue Nov 27 2018(Updated: )

A flaw was found in systemd-journald. An uncontrolled alloca() by writing a crafted message to /run/systemd/journal/socket that results in a stack buffer overflow. This can lead to a denial of service attack or arbitrary code execution in some cases.

Credit: secalert@redhat.com secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
Systemd Project Systemd<=240
Redhat Enterprise Linux Desktop=7.0
Redhat Enterprise Linux Server=7.0
Redhat Enterprise Linux Server Aus=7.3
Redhat Enterprise Linux Server Aus=7.6
Redhat Enterprise Linux Server Eus=7.5
Redhat Enterprise Linux Server Eus=7.6
Redhat Enterprise Linux Server Tus=7.3
Redhat Enterprise Linux Server Tus=7.6
Redhat Enterprise Linux Workstation=7.0
Debian Debian Linux=8.0
Debian Debian Linux=9.0
Canonical Ubuntu Linux=16.04
Canonical Ubuntu Linux=18.04
Canonical Ubuntu Linux=18.10
Oracle Communications Session Border Controller=8.0.0
Oracle Communications Session Border Controller=8.1.0
Oracle Communications Session Border Controller=8.2.0
Oracle Enterprise Communications Broker=3.0.0
Oracle Enterprise Communications Broker=3.1.0
debian/systemd<=240-2<=43-1<=232-25+deb9u6
240-4
232-25+deb9u7
ubuntu/systemd<237-3ubuntu10.11
237-3ubuntu10.11
ubuntu/systemd<239-7ubuntu10.6
239-7ubuntu10.6
ubuntu/systemd<229-4ubuntu21.15
229-4ubuntu21.15
debian/systemd
247.3-7+deb11u5
252.26-1~deb12u2
256.4-3

Remedy

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16865

Remedy

https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html

Never miss a vulnerability like this again

Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.

Read MoreStart Free Trial

Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is CVE-2018-16865?

    CVE-2018-16865 is a vulnerability in systemd-journald that allows an attacker to crash the system by allocating memory without limits.

  • What is the severity of CVE-2018-16865?

    The severity of CVE-2018-16865 is high, with a CVSS score of 7.8.

  • How can an attacker exploit CVE-2018-16865?

    An attacker can exploit CVE-2018-16865 by sending a large number of entries to the journal socket in systemd-journald, causing the stack to clash with another memory region and potentially crashing the system.

  • How can I fix CVE-2018-16865 on Ubuntu systems?

    To fix CVE-2018-16865 on Ubuntu systems, update the systemd package to version 229-4ubuntu21.15.

  • Where can I find more information about CVE-2018-16865?

    You can find more information about CVE-2018-16865 at the following references:• [MITRE CVE-2018-16865](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-16865)• [Ubuntu Security Notice USN-3855-1](https://ubuntu.com/security/notices/USN-3855-1)• [NVD CVE-2018-16865](https://nvd.nist.gov/vuln/detail/CVE-2018-16865)

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2024 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203