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| purl | pkg:pypi/pyopenssl@17.5.0 |
| Vulnerability | Summary | Fixed by |
|---|---|---|
|
VCID-dt7c-fvqj-2bek
Aliases: CVE-2026-27448 GHSA-vp96-hxj8-p424 |
pyOpenSSL allows TLS connection bypass via unhandled callback exception in set_tlsext_servername_callback If a user provided callback to `set_tlsext_servername_callback` raised an unhandled exception, this would result in a connection being accepted. If a user was relying on this callback for any security-sensitive behavior, this could allow bypassing it. Unhandled exceptions now result in rejecting the connection. Credit to **Leury Castillo** for reporting this issue. |
Affected by 0 other vulnerabilities. |
| Vulnerability | Summary | Aliases |
|---|---|---|
| VCID-9uuq-2wcq-cbf1 | Python Cryptographic Authority pyopenssl version prior to version 17.5.0 contains a CWE-416: Use After Free vulnerability in X509 object handling that can result in Use after free can lead to possible denial of service or remote code execution.. This attack appear to be exploitable via Depends on the calling application and if it retains a reference to the memory.. This vulnerability appears to have been fixed in 17.5.0. |
CVE-2018-1000807
GHSA-p28m-34f6-967q PYSEC-2018-23 |
| VCID-sta9-nhh7-1yeq | Python Cryptographic Authority pyopenssl version Before 17.5.0 contains a CWE - 401 : Failure to Release Memory Before Removing Last Reference vulnerability in PKCS #12 Store that can result in Denial of service if memory runs low or is exhausted. This attack appear to be exploitable via Depends upon calling application, however it could be as simple as initiating a TLS connection. Anything that would cause the calling application to reload certificates from a PKCS #12 store.. This vulnerability appears to have been fixed in 17.5.0. |
CVE-2018-1000808
GHSA-2rcm-phc9-3945 PYSEC-2018-24 |