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Lookup for vulnerable packages by Package URL.

Purlpkg:pypi/tlslite-ng@0.7.6
Typepypi
Namespace
Nametlslite-ng
Version0.7.6
Qualifiers
Subpath
Is_vulnerablefalse
Next_non_vulnerable_versionnull
Latest_non_vulnerable_versionnull
Affected_by_vulnerabilities
Fixing_vulnerabilities
0
url VCID-5ju3-cs33-8ygx
vulnerability_id VCID-5ju3-cs33-8ygx
summary tlslite-ng is an open source python library that implements SSL and TLS cryptographic protocols. In tlslite-ng before versions 0.7.6 and 0.8.0-alpha39, the code that performs decryption and padding check in RSA PKCS#1 v1.5 decryption is data dependant. In particular, the code has multiple ways in which it leaks information about the decrypted ciphertext. It aborts as soon as the plaintext doesn't start with 0x00, 0x02. All TLS servers that enable RSA key exchange as well as applications that use the RSA decryption API directly are vulnerable. This is patched in versions 0.7.6 and 0.8.0-alpha39. Note: the patches depend on Python processing the individual bytes in side-channel free manner, this is known to not the case (see reference). As such, users that require side-channel resistance are recommended to use different TLS implementations, as stated in the security policy of tlslite-ng.
references
0
reference_url https://github.com/tlsfuzzer/tlslite-ng/commit/c28d6d387bba59d8bd5cb3ba15edc42edf54b368
reference_id
reference_type
scores
url https://github.com/tlsfuzzer/tlslite-ng/commit/c28d6d387bba59d8bd5cb3ba15edc42edf54b368
1
reference_url https://github.com/tlsfuzzer/tlslite-ng/pull/438
reference_id
reference_type
scores
url https://github.com/tlsfuzzer/tlslite-ng/pull/438
2
reference_url https://github.com/tlsfuzzer/tlslite-ng/pull/439
reference_id
reference_type
scores
url https://github.com/tlsfuzzer/tlslite-ng/pull/439
3
reference_url https://github.com/tlsfuzzer/tlslite-ng/security/advisories/GHSA-wvcv-832q-fjg7
reference_id
reference_type
scores
url https://github.com/tlsfuzzer/tlslite-ng/security/advisories/GHSA-wvcv-832q-fjg7
4
reference_url https://pypi.org/project/tlslite-ng/
reference_id
reference_type
scores
url https://pypi.org/project/tlslite-ng/
5
reference_url https://securitypitfalls.wordpress.com/2018/08/03/constant-time-compare-in-python/
reference_id
reference_type
scores
url https://securitypitfalls.wordpress.com/2018/08/03/constant-time-compare-in-python/
fixed_packages
0
url pkg:pypi/tlslite-ng@0.7.6
purl pkg:pypi/tlslite-ng@0.7.6
is_vulnerable false
affected_by_vulnerabilities
resource_url http://public2.vulnerablecode.io/packages/pkg:pypi/tlslite-ng@0.7.6
aliases CVE-2020-26263, GHSA-wvcv-832q-fjg7, PYSEC-2020-143
risk_score null
exploitability null
weighted_severity null
resource_url http://public2.vulnerablecode.io/vulnerabilities/VCID-5ju3-cs33-8ygx
Risk_scorenull
Resource_urlhttp://public2.vulnerablecode.io/packages/pkg:pypi/tlslite-ng@0.7.6