CVE-2016-4998: canonical ubuntu_linux

Vulnerability summary

CVE-2016-4998 is a high (CVSS 7.1) vulnerability in canonical ubuntu_linux. EPSS estimates a 1.88% chance of exploitation in the next 30 days, higher than 79.5% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 03-07-2016
   PublishedVulnerability first disclosed.
2. 06-08-2024
   Last modifiedVulnerability information updated.

Description

The IPT_SO_SET_REPLACE setsockopt implementation in the netfilter subsystem in the Linux kernel before 4.6 allows local users to cause a denial of service (out-of-bounds read) or possibly obtain sensitive information from kernel heap memory by leveraging in-container root access to provide a crafted offset value that leads to crossing a ruleset blob boundary.

• 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.