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Total
3 CVE
| CVE | Vendors | Products | Updated | CVSS v2 | CVSS v3 |
|---|---|---|---|---|---|
| CVE-2021-33503 | 3 Fedoraproject, Oracle, Python | 5 Fedora, Enterprise Manager Ops Center, Instantis Enterprisetrack and 2 more | 2023-08-24 | 5.0 MEDIUM | 7.5 HIGH |
| An issue was discovered in urllib3 before 1.26.5. When provided with a URL containing many @ characters in the authority component, the authority regular expression exhibits catastrophic backtracking, causing a denial of service if a URL were passed as a parameter or redirected to via an HTTP redirect. | |||||
| CVE-2019-11324 | 2 Canonical, Python | 2 Ubuntu Linux, Urllib3 | 2021-06-15 | 5.0 MEDIUM | 7.5 HIGH |
| The urllib3 library before 1.24.2 for Python mishandles certain cases where the desired set of CA certificates is different from the OS store of CA certificates, which results in SSL connections succeeding in situations where a verification failure is the correct outcome. This is related to use of the ssl_context, ca_certs, or ca_certs_dir argument. | |||||
| CVE-2020-7212 | 1 Python | 1 Urllib3 | 2020-03-09 | 7.8 HIGH | 7.5 HIGH |
| The _encode_invalid_chars function in util/url.py in the urllib3 library 1.25.2 through 1.25.7 for Python allows a denial of service (CPU consumption) because of an inefficient algorithm. The percent_encodings array contains all matches of percent encodings. It is not deduplicated. For a URL of length N, the size of percent_encodings may be up to O(N). The next step (normalize existing percent-encoded bytes) also takes up to O(N) for each step, so the total time is O(N^2). If percent_encodings were deduplicated, the time to compute _encode_invalid_chars would be O(kN), where k is at most 484 ((10+6*2)^2). | |||||