Protection Mechanism Failure Affecting python-libs package, versions <0:2.7.5-38.el7_2
Threat Intelligence
Snyk has a published code exploit for this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-CENTOS7-PYTHONLIBS-2069390
- published26 Jul 2021
- disclosed11 Jun 2016
Introduced: 11 Jun 2016
CVE-2016-0772 (opens in a new tab)How to fix?
Upgrade Centos:7 python-libs to version 0:2.7.5-38.el7_2 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream python-libs package and not the python-libs package as distributed by Centos.
See How to fix? for Centos:7 relevant fixed versions and status.
The smtplib library in CPython (aka Python) before 2.7.12, 3.x before 3.4.5, and 3.5.x before 3.5.2 does not return an error when StartTLS fails, which might allow man-in-the-middle attackers to bypass the TLS protections by leveraging a network position between the client and the registry to block the StartTLS command, aka a "StartTLS stripping attack."
References
- http://www.securityfocus.com/bid/91225
- https://bugzilla.redhat.com/show_bug.cgi?id=1303647
- https://docs.python.org/3.4/whatsnew/changelog.html#python-3-4-5
- https://docs.python.org/3.5/whatsnew/changelog.html#python-3-5-2
- https://hg.python.org/cpython/raw-file/v2.7.12/Misc/NEWS
- https://hg.python.org/cpython/rev/b3ce713fb9be
- https://hg.python.org/cpython/rev/d590114c2394
- http://www.splunk.com/view/SP-CAAAPSV
- http://www.splunk.com/view/SP-CAAAPUE
- https://access.redhat.com/security/cve/CVE-2016-0772
- https://security.gentoo.org/glsa/201701-18
- https://lists.debian.org/debian-lts-announce/2019/02/msg00011.html
- http://www.openwall.com/lists/oss-security/2016/06/14/9
- http://rhn.redhat.com/errata/RHSA-2016-1626.html
- http://rhn.redhat.com/errata/RHSA-2016-1627.html
- http://rhn.redhat.com/errata/RHSA-2016-1628.html
- http://rhn.redhat.com/errata/RHSA-2016-1629.html
- http://rhn.redhat.com/errata/RHSA-2016-1630.html
- https://access.redhat.com/errata/RHSA-2016:1626
- http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.html
- https://www.exploit-db.com/exploits/43500