ircII before 20210314 allows remote attackers to cause a denial of service (segmentation fault and client crash, disconnecting the victim from an IRC server) via a crafted CTCP UTC message.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - ircII before 20210314 allows remote attackers to cause a denial of service (segmentation fault and client     crash, disconnecting the victim from an IRC server) via a crafted CTCP UTC message. (CVE-2021-29376)

Note that Nessus relies on the presence of the package as reported by the vendor.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - ircII before 20210314 allows remote attackers to cause a denial of service (segmentation fault and client
    crash, disconnecting the victim from an IRC server) via a crafted CTCP UTC message. (CVE-2021-29376)

The remote Debian 9 host has a package installed that is affected by a vulnerability as referenced in the dla-2747 advisory.

    An issue has been found in ircii, an Internet Relay Chat client. A crafted CTCP UTC message could allow an     attacker to disconnect the victim from an IRC server due to a segmentation fault and client crash. For     Debian 9 stretch, this problem has been fixed in version 20151120-1+deb9u1. We recommend that you upgrade     your ircii packages. For the detailed security status of ircii please refer to its security tracker page     at: https://security-tracker.debian.org/tracker/ircii Further information about Debian LTS security     advisories, how to apply these updates to your system and frequently asked questions can be found at:
    https://wiki.debian.org/LTS

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Debian 9 host has a package installed that is affected by a vulnerability as referenced in the dla-2746 advisory.

    An issue has been found in scrollz, an advanced ircII-based IRC client. A crafted CTCP UTC message could     allow an attacker to disconnect the victim from an IRC server due to a segmentation fault and client     crash. For Debian 9 stretch, this problem has been fixed in version 2.2.3-1+deb9u1. We recommend that you     upgrade your scrollz packages. For the detailed security status of scrollz please refer to its security     tracker page at: https://security-tracker.debian.org/tracker/scrollz Further information about Debian LTS     security advisories, how to apply these updates to your system and frequently asked questions can be found     at: https://wiki.debian.org/LTS

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Michael Ortmann reports :

ircii has a bug in parsing CTCP UTC messages.

Its unknown if this could also be used for arbitrary code execution.

ID	Name	Product	Family	Severity
250871	Linux Distros Unpatched Vulnerability : CVE-2021-29376	Nessus	Misc.	high
405005	Alpine: multiple ircii packages: security update to 20210314-r0	Tenable Cloud Security	Alpine Linux Local Security Checks	high
405005	Alpine: multiple ircii packages: security update to 20210314-r0	Tenable Self-Hosted Container Security	Alpine Linux Local Security Checks	high
152739	Debian DLA-2747-1 : ircii - LTS security update	Nessus	Debian Local Security Checks	high
152723	Debian DLA-2746-1 : scrollz - LTS security update	Nessus	Debian Local Security Checks	high
151008	FreeBSD : ircII -- denial of service (9f27ac74-cdee-11eb-930d-fc4dd43e2b6a)	Nessus	FreeBSD Local Security Checks	high

Detections

Analytics

CVE-2021-29376

high

Tenable Plugins

high

high

high

high

high

high