CVE-2017-15721 Null dereference in n/a

What is CVE-2017-15721?

CVE-2017-15721 is a high-severity vulnerability in Debian Debian Linux, published on 22 Oct 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

In Irssi before 1.0.5, certain incorrectly formatted DCC CTCP messages could cause a NULL pointer dereference. This is a separate, but similar, issue relative to CVE-2017-9468.

Weakness: CWE-476

Which versions are affected by CVE-2017-15721?

It affects 2 products.

Products include Debian Debian Linux, Irssi Irssi.

How do I fix CVE-2017-15721?

Upgrade to a fixed version.

Is CVE-2017-15721 being exploited?

There is no known exploitation of CVE-2017-15721 in the wild and no public exploit code.

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• CVE-2024-9680 Mozilla Firefox Use-After-Free Exploited Critical 9.8

All Debian Debian Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as ALPINE-CVE-2017-15721, DEBIAN-CVE-2017-15721, GHSA-v58c-vj35-4q53, UBUNTU-CVE-2017-15721.