What’s Vulnerable › Vulnerabilities

CVE-2016-2377

• Severity: high (CVSS 8.1 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2017-01-06 · updated 2026-06-17
• Weakness: CWE-119

Description

A buffer overflow vulnerability exists in the handling of the MXIT protocol in Pidgin. Specially crafted MXIT data sent by the server could potentially result in an out-of-bounds write of one byte. A malicious server can send a negative content-length in response to a HTTP request triggering the vulnerability.

Affected products

• Canonical Ubuntu Linux: 12.04, 14.04, 15.10
• Debian Linux: 8.0
• Pidgin: through 2.10.12

References

• http://www.debian.org/security/2016/dsa-3620
• http://www.pidgin.im/news/security/?id=93
• http://www.securityfocus.com/bid/91335
• http://www.talosintelligence.com/reports/TALOS-2016-0119/
• http://www.ubuntu.com/usn/USN-3031-1
• https://security.gentoo.org/glsa/201701-38
• http://www.debian.org/security/2016/dsa-3620
• http://www.pidgin.im/news/security/?id=93
• http://www.securityfocus.com/bid/91335
• http://www.talosintelligence.com/reports/TALOS-2016-0119/
• http://www.ubuntu.com/usn/USN-3031-1
• https://security.gentoo.org/glsa/201701-38

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