CVE-2017-8816: debian debian_linux Integer Overflow or Wraparound

Vulnerability summary

CVE-2017-8816 is a critical (CVSS 9.8) Integer Overflow or Wraparound vulnerability in debian debian_linux. EPSS estimates a 8.52% chance of exploitation in the next 30 days, higher than 95% of scored vulnerabilities.

Timeline

1. 29-11-2017
   PublishedVulnerability first disclosed.
2. 15-04-2026
   Last modifiedVulnerability information updated.

Description

The NTLM authentication feature in curl and libcurl before 7.57.0 on 32-bit platforms allows attackers to cause a denial of service (integer overflow and resultant buffer overflow, and application crash) or possibly have unspecified other impact via vectors involving long user and password fields.

• 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.