Vulnerability Details : CVE-2019-5435

An integer overflow in curl's URL API results in a buffer overflow in libcurl 7.62.0 to and including 7.64.1.

Vulnerability category: Overflow

Published 2019-05-28 19:29:06

Updated 2020-10-20 22:15:35

Source HackerOne

View at NVD, CVE.org

Exploit prediction scoring system (EPSS) score for CVE-2019-5435

Probability of exploitation activity in the next 30 days: 1.20%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 84 % EPSS Score History EPSS FAQ

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Source
4.3	MEDIUM	AV:N/AC:M/Au:N/C:N/I:N/A:P	8.6	2.9	nvd@nist.gov
Access Vector: Network Access Complexity: Medium Authentication: None Confidentiality Impact: None Integrity Impact: None Availability Impact: Partial
3.7	LOW	CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L	2.2	1.4	nvd@nist.gov
Attack Vector: Network Attack Complexity: High Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: None Integrity: None Availability: Low

CWE-131 Incorrect Calculation of Buffer Size

The product does not correctly calculate the size to be used when allocating a buffer, which could lead to a buffer overflow.

Assigned by: support@hackerone.com (Secondary)
CWE-190 Integer Overflow or Wraparound

The 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 can introduce other weaknesses when the calculation is used for resource management or execution control.

Assigned by: nvd@nist.gov (Primary)

Haxx » Curl
Versions from including (>=) 7.62.0 and up to, including, (<=) 7.64.1
cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:*
Matching versions