CVE-2020-8955: Buffer Overflow

Published Feb 12, 2020
·
Updated

ircmodechannelupdate in plugins/irc/irc-mode.c in WeeChat through 2.7 allows remote attackers to cause a denial of service (buffer overflow and application crash) or possibly have unspecified other impact via a malformed IRC message 324 (channel mode).

Affected Software

9 affected components
WeeChat WeeChat>=0.3.8<=2.7
Fedoraproject Fedora=30
Fedoraproject Fedora=31
Fedoraproject Fedora=32
openSUSE Backports SLE=15.0
openSUSE Backports SLE=15.0-sp1
openSUSE Leap=15.1
Debian Debian Linux=8.0
Debian Debian Linux=9.0

Event History

Feb 12, 2020
CVE Published
via MITRE·09:58 PM
Data Sourced
via MITRE·09:58 PM
Description
Data Sourced
via NVD·10:15 PM
RemedyDescriptionSeverityWeaknessAffected Software
Free Weekly Intel

Don't miss critical vulnerabilities

Join thousands of security professionals who receive our weekly digest of trending CVEs, zero-days, and exploited vulnerabilities.

No spam. Unsubscribe anytime.

Frequently Asked Questions

1

What is the severity of CVE-2020-8955?

CVE-2020-8955 has been classified as a denial of service vulnerability due to buffer overflow that can cause application crashes.

2

How do I fix CVE-2020-8955?

To mitigate CVE-2020-8955, users should update WeeChat to a version later than 2.7 or apply available patches.

3

Which versions of WeeChat are affected by CVE-2020-8955?

WeeChat versions from 0.3.8 to 2.7 are vulnerable to CVE-2020-8955.

4

What impact can CVE-2020-8955 have on my system?

CVE-2020-8955 can result in a denial of service or potential unspecified impacts due to remote exploitation via malformed IRC messages.

5

Is CVE-2020-8955 specific to any operating systems?

Yes, CVE-2020-8955 affects multiple operating systems including Fedora, openSUSE, and Debian.

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.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203