CVE-2016-2851

Integer overflow in proto.c in libotr before 4.1.1 on 64-bit platforms allows remote attackers to cause a denial of service (memory corruption and application…

published April 7, 2016

CVSS
—
EPSS
25%
Percentile
97.9
In the wild
Unconfirmed
What it is

⚠️ An integer overflow in libotr could turn large OTR messages into a memory-destroying disaster! 💥 Think of this as a package delivery service that can’t handle oversized boxes — when too many arrive at once, they cause a pile-up, leading to chaos and delays. 📦💨 An attacker could exploit this vulnerability to crash the application, disrupting communication and causing denial of service. In a worst-case scenario, they could even execute arbitrary code, turning that innocent chat into a complete system takeover!

Put simply

Think of this as a package delivery service that can’t handle oversized boxes — when too many arrive at once, they cause a pile-up, leading to chaos and delays. 📦💨 This integer overflow in proto.c on 64-bit platforms allows for a heap-based buffer overflow by sending a series of large OTR messages, ultimately leading to memory corruption and application crashes.

What to do

An attacker could exploit this vulnerability to crash the application, disrupting communication and causing denial of service. In a worst-case scenario, they could even execute arbitrary code, turning that innocent chat into a complete system takeover! To secure your systems, upgrade to libotr version 4.1.1 or later immediately. Additionally, consider implementing input validation to prevent overly large messages from being processed in the future. You've got this! By taking these steps, you'll help keep your communications secure. 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.25400 · 97.9th percentile
Published
2016-04-07T23:00Z
EPSS history
Timeline
  • 07 APR 23:00Z
    Integer overflow in proto.c in libotr before 4.1.1 on 64-bit platforms allows remote attackers to cause a denial of service (memory corruption and application…
    cvelistv5