Bug report
Bug description:
Description
Defender on Windows is detecting openssl vulnerabilities when python is installed.
Tested for Windows Python 3.11.9 and 3.12.15.
Defender is flagging vulnerabilities in the following files in Version 3.0.13:
C:\Python\DLLs\libcrypto-3.dll
C:\Python\DLLs\libssl-3.dll
CVE-2024-2511
OpenSSL Changelog
Latest OPENSSL Version with fix:
3.0.14 [4 Jun 2024]
Impact
Issue summary: Some non-default TLS server configurations can cause unbounded memory growth when processing TLSv1.3 sessions Impact summary: An attacker may exploit certain server configurations to trigger unbounded memory growth that would lead to a Denial of Service This problem can occur in TLSv1.3 if the non-default SSL_OP_NO_TICKET option is being used (but not if early_data support is also configured and the default anti-replay protection is in use). In this case, under certain conditions, the session cache can get into an incorrect state and it will fail to flush properly as it fills. The session cache will continue to grow in an unbounded manner. A malicious client could deliberately create the scenario for this failure to force a Denial of Service. It may also happen by accident in normal operation. This issue only affects TLS servers supporting TLSv1.3. It does not affect TLS clients. The FIPS modules in 3.2, 3.1 and 3.0 are not affected by this issue. OpenSSL 1.0.2 is also not affected by this issue.
Python versions tested
3.11.9 Windows
3.12.15 WIndows
CPython versions tested on:
3.11, 3.12
Operating systems tested on:
Windows
Linked PRs
Bug report
Bug description:
Description
Defender on Windows is detecting openssl vulnerabilities when python is installed.
Tested for Windows Python 3.11.9 and 3.12.15.
Defender is flagging vulnerabilities in the following files in Version 3.0.13:
C:\Python\DLLs\libcrypto-3.dll
C:\Python\DLLs\libssl-3.dll
CVE-2024-2511
OpenSSL Changelog
Latest OPENSSL Version with fix:
3.0.14 [4 Jun 2024]
Impact
Issue summary: Some non-default TLS server configurations can cause unbounded memory growth when processing TLSv1.3 sessions Impact summary: An attacker may exploit certain server configurations to trigger unbounded memory growth that would lead to a Denial of Service This problem can occur in TLSv1.3 if the non-default SSL_OP_NO_TICKET option is being used (but not if early_data support is also configured and the default anti-replay protection is in use). In this case, under certain conditions, the session cache can get into an incorrect state and it will fail to flush properly as it fills. The session cache will continue to grow in an unbounded manner. A malicious client could deliberately create the scenario for this failure to force a Denial of Service. It may also happen by accident in normal operation. This issue only affects TLS servers supporting TLSv1.3. It does not affect TLS clients. The FIPS modules in 3.2, 3.1 and 3.0 are not affected by this issue. OpenSSL 1.0.2 is also not affected by this issue.
Python versions tested
3.11.9 Windows
3.12.15 WIndows
CPython versions tested on:
3.11, 3.12
Operating systems tested on:
Windows
Linked PRs