CVE-2016-3947: canonical ubuntu_linux

Vulnerability summary

CVE-2016-3947 is a high (CVSS 8.2) vulnerability in canonical ubuntu_linux. EPSS estimates a 14.62% chance of exploitation in the next 30 days, higher than 96.6% of scored vulnerabilities.

Timeline

1. 07-04-2016
   PublishedVulnerability first disclosed.
2. 06-08-2024
   Last modifiedVulnerability information updated.

Description

Heap-based buffer overflow in the Icmp6::Recv function in icmp/Icmp6.cc in the pinger utility in Squid before 3.5.16 and 4.x before 4.0.8 allows remote servers to cause a denial of service (performance degradation or transition failures) or write sensitive information to log files via an ICMPv6 packet.

• CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferThe product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.