Improper Certificate Validation Affecting python-twisted-web package, versions <0:12.1.0-5.el7_2
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Test your applications- Snyk ID SNYK-RHEL7-PYTHONTWISTEDWEB-5364948
- published 26 Mar 2023
- disclosed 7 Jun 2018
Introduced: 7 Jun 2018
CVE-2016-1000342 Open this link in a new tabHow to fix?
Upgrade RHEL:7 python-twisted-web to version 0:12.1.0-5.el7_2 or higher.
This issue was patched in RHSA-2018:2927.
NVD Description
Note: Versions mentioned in the description apply only to the upstream python-twisted-web package and not the python-twisted-web package as distributed by RHEL.
See How to fix? for RHEL:7 relevant fixed versions and status.
In the Bouncy Castle JCE Provider version 1.55 and earlier ECDSA does not fully validate ASN.1 encoding of signature on verification. It is possible to inject extra elements in the sequence making up the signature and still have it validate, which in some cases may allow the introduction of 'invisible' data into a signed structure.
References
- https://access.redhat.com/security/cve/CVE-2016-1000342
- https://github.com/bcgit/bc-java/commit/843c2e60f67d71faf81d236f448ebbe56c62c647#diff-25c3c78db788365f36839b3f2d3016b9
- https://lists.debian.org/debian-lts-announce/2018/07/msg00009.html
- https://usn.ubuntu.com/3727-1/
- https://access.redhat.com/errata/RHSA-2018:2927
- https://security.netapp.com/advisory/ntap-20181127-0004/
- https://www.oracle.com/security-alerts/cpuoct2020.html