HTTP Response Splitting Affecting python27 package, versions <0:2.7.10-4.122.amzn1
Threat Intelligence
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-AMZN201803-PYTHON27-1699452
- published27 Sept 2021
- disclosed2 Sept 2016
Introduced: 2 Sep 2016
CVE-2016-5699 (opens in a new tab)How to fix?
Upgrade Amazon-Linux:2018.03 python27 to version 0:2.7.10-4.122.amzn1 or higher.
This issue was patched in ALAS-2016-724.
NVD Description
Note: Versions mentioned in the description apply only to the upstream python27 package and not the python27 package as distributed by Amazon-Linux.
See How to fix? for Amazon-Linux:2018.03 relevant fixed versions and status.
CRLF injection vulnerability in the HTTPConnection.putheader function in urllib2 and urllib in CPython (aka Python) before 2.7.10 and 3.x before 3.4.4 allows remote attackers to inject arbitrary HTTP headers via CRLF sequences in a URL.
References
- http://www.securityfocus.com/bid/91226
- https://docs.python.org/3.4/whatsnew/changelog.html#python-3-4-4
- https://hg.python.org/cpython/raw-file/v2.7.10/Misc/NEWS
- https://hg.python.org/cpython/rev/1c45047c5102
- https://hg.python.org/cpython/rev/bf3e1c9b80e9
- http://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.html
- http://www.splunk.com/view/SP-CAAAPSV
- http://www.splunk.com/view/SP-CAAAPUE
- http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-5699
- http://blog.blindspotsecurity.com/2016/06/advisory-http-header-injection-in.html
- https://lists.debian.org/debian-lts-announce/2019/02/msg00011.html
- http://www.openwall.com/lists/oss-security/2016/06/14/7
- http://www.openwall.com/lists/oss-security/2016/06/15/12
- http://www.openwall.com/lists/oss-security/2016/06/16/2
- 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
- http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.html
- https://access.redhat.com/errata/RHSA-2016:1626
- https://access.redhat.com/errata/RHSA-2016:1627
- https://access.redhat.com/errata/RHSA-2016:1628
- https://access.redhat.com/errata/RHSA-2016:1629
- https://access.redhat.com/errata/RHSA-2016:1630
- https://access.redhat.com/security/cve/CVE-2016-5699
- https://bugzilla.redhat.com/show_bug.cgi?id=1303699