An integer overflow in curl's URL API results in a buffer overflow in libcurl 7.62.0 to and including 7.64.1.
Published 2019-05-28 19:29:06
Updated 2020-10-20 22:15:35
Source HackerOne
View at NVD,   CVE.org
Vulnerability category: Overflow

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

1.66%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 88 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2019-5435

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
4.3
MEDIUM AV:N/AC:M/Au:N/C:N/I:N/A:P
8.6
2.9
NIST
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
NIST

CWE ids for CVE-2019-5435

  • 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)
  • 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)

References for CVE-2019-5435

Products affected by CVE-2019-5435

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