CVE-2019-16905: netapp cloud_backup Integer Overflow or Wraparound

Vulnerability summary

CVE-2019-16905 is a high (CVSS 7.8) Integer Overflow or Wraparound vulnerability in netapp cloud_backup. EPSS estimates a 2.23% chance of exploitation in the next 30 days, higher than 82.4% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 09-10-2019
   PublishedVulnerability first disclosed.
2. 14-10-2026
   Last modifiedVulnerability information updated.

Description

OpenSSH 7.7 through 7.9 and 8.x before 8.1, when compiled with an experimental key type, has a pre-authentication integer overflow if a client or server is configured to use a crafted XMSS key. This leads to memory corruption and local code execution because of an error in the XMSS key parsing algorithm. NOTE: the XMSS implementation is considered experimental in all released OpenSSH versions, and there is no supported way to enable it when building portable OpenSSH.

• CWE-190Integer Overflow or WraparoundThe product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.