Lookup for vulnerable packages by Package URL.

Purlpkg:pypi/tlslite-ng@0.5.0b4
Typepypi
Namespace
Nametlslite-ng
Version0.5.0b4
Qualifiers
Subpath
Is_vulnerabletrue
Next_non_vulnerable_version0.7.6
Latest_non_vulnerable_version0.7.6
Affected_by_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
1
url VCID-q2yu-yvd5-sbhs
vulnerability_id VCID-q2yu-yvd5-sbhs
summary tlslite-ng version 0.7.3 and earlier, since commit d7b288316bca7bcdd082e6ccff5491e241305233 contains a CWE-354: Improper Validation of Integrity Check Value vulnerability in TLS implementation, tlslite/utils/constanttime.py: ct_check_cbc_mac_and_pad(); line "end_pos = data_len - 1 - mac.digest_size" that can result in an attacker manipulating the TLS ciphertext which will not be detected by receiving tlslite-ng. This attack appears to be exploitable via man in the middle on a network connection. This vulnerability appears to have been fixed after commit 3674815d1b0f7484454995e2737a352e0a6a93d8.
references
0
reference_url https://github.com/advisories/GHSA-cwh5-3cw7-4286
reference_id
reference_type
scores
url https://github.com/advisories/GHSA-cwh5-3cw7-4286
1
reference_url https://github.com/pypa/advisory-database/tree/main/vulns/tlslite-ng/PYSEC-2018-31.yaml
reference_id
reference_type
scores
url https://github.com/pypa/advisory-database/tree/main/vulns/tlslite-ng/PYSEC-2018-31.yaml
2
reference_url https://github.com/tlsfuzzer/tlslite-ng/pull/234/commits/3674815d1b0f7484454995e2737a352e0a6a93d8
reference_id
reference_type
scores
url https://github.com/tlsfuzzer/tlslite-ng/pull/234/commits/3674815d1b0f7484454995e2737a352e0a6a93d8
3
reference_url https://github.com/tomato42/tlslite-ng
reference_id
reference_type
scores
url https://github.com/tomato42/tlslite-ng
4
reference_url https://github.com/tomato42/tlslite-ng/pull/234
reference_id
reference_type
scores
url https://github.com/tomato42/tlslite-ng/pull/234
5
reference_url https://nvd.nist.gov/vuln/detail/CVE-2018-1000159
reference_id CVE-2018-1000159
reference_type
scores
url https://nvd.nist.gov/vuln/detail/CVE-2018-1000159
fixed_packages
0
url pkg:pypi/tlslite-ng@0.7.4
purl pkg:pypi/tlslite-ng@0.7.4
is_vulnerable true
affected_by_vulnerabilities
0
vulnerability VCID-5ju3-cs33-8ygx
resource_url http://public2.vulnerablecode.io/packages/pkg:pypi/tlslite-ng@0.7.4
aliases CVE-2018-1000159, GHSA-cwh5-3cw7-4286, PYSEC-2018-31
risk_score null
exploitability null
weighted_severity null
resource_url http://public2.vulnerablecode.io/vulnerabilities/VCID-q2yu-yvd5-sbhs
Fixing_vulnerabilities
Risk_scorenull
Resource_urlhttp://public2.vulnerablecode.io/packages/pkg:pypi/tlslite-ng@0.5.0b4