CVE-2017-2640 Memory corruption in pidgin

High 7.5 Published Updated

A malicious server can trigger an out-of-bounds write in Pidgin, leading to arbitrary code execution or application crashes.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
Available

What is CVE-2017-2640?

CVE-2017-2640 is a high-severity memory corruption vulnerability in Debian Debian Linux, published on 27 Jul 2018. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

An out-of-bounds write flaw was found in the way Pidgin before 2.12.0 processed XML content. A malicious remote server could potentially use this flaw to crash Pidgin or execute arbitrary code in the context of the pidgin process.

Weakness: CWE-787

Which versions are affected by CVE-2017-2640?

It affects 7 products.

Linux distribution packages (1)
pidgin SUSE:Linux Enterprise Software Development Kit 11 SP4All versions2.6.6-0.30.3.1

Products include Debian Debian Linux, Pidgin Pidgin, Redhat Enterprise Linux Desktop, Redhat Enterprise Linux Server, Redhat Enterprise Linux Server Aus, Redhat Enterprise Linux Server Eus and 1 more.

How do I fix CVE-2017-2640?

Upgrade to a fixed version.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2017-2640 being exploited?

There is no known exploitation of CVE-2017-2640 in the wild and no public exploit code.

All Debian Debian Linux vulnerabilities

Sources

Also known as ALPINE-CVE-2017-2640, DEBIAN-CVE-2017-2640, DLA-853-1, DSA-3806-1, GHSA-556c-qpr9-626c, MGASA-2017-0102 and 3 more.

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