What’s Vulnerable › Vulnerabilities

CVE-2017-2640

• Severity: critical (CVSS 9.8 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 6.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2018-07-27 · updated 2026-06-17
• Weakness: CWE-787

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.

Affected products

• Debian Linux: 8.0
• Pidgin: before 2.12.0 — fixed in 2.12.0
• RedHat Enterprise Linux Desktop: 7.0
• RedHat Enterprise Linux Server: 7.0
• RedHat Enterprise Linux Server Aus: 7.4
• RedHat Enterprise Linux Server Eus: 7.4, 7.5
• RedHat Enterprise Linux Workstation: 7.0

How to fix

Upgrade to a fixed version: Pidgin 2.12.0. Check the vendor advisory for mitigations.

References

• http://www.securityfocus.com/bid/96775
• https://access.redhat.com/errata/RHSA-2017:1854
• https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2640
• https://security.gentoo.org/glsa/201706-10
• https://www.debian.org/security/2017/dsa-3806
• http://www.securityfocus.com/bid/96775
• https://access.redhat.com/errata/RHSA-2017:1854
• https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2640
• https://security.gentoo.org/glsa/201706-10
• https://www.debian.org/security/2017/dsa-3806

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