csaf_redhat - rhsa-2023

rhsa-2023_6290

Vulnerability from csaf_redhat

Published

2023-11-02 15:54

Modified

2024-11-15 17:34

Summary

Red Hat Security Advisory: python security update

Notes

Topic

An update for python is now available for Red Hat Enterprise Linux 6 Extended Lifecycle Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Details

Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, exceptions, very high level dynamic data types and dynamic typing. Python supports interfaces to many system calls and libraries, as well as to various windowing systems. Security Fix(es): * python: TLS handshake bypass (CVE-2023-40217) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.

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          "category": "description",
          "text": "Python ssl.SSLSocket is vulnerable to a bypass of the TLS handshake in certain instances for HTTPS servers and other server-side protocols that use TLS client authentication such as mTLS. This issue may result in a breach of integrity as its possible to modify or delete resources that are authenticated only by a TLS certificate. No breach of confidentiality is possible.",
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          "text": "python: TLS handshake bypass",
          "title": "Vulnerability summary"
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          "category": "other",
          "text": "Versions of `python36:3.6/python36` as shipped with Red Hat Enterprise Linux 8 are marked as \u0027Not affected\u0027 as they just provide \"symlinks\" to the main `python3` component, which provides the actual interpreter of the Python programming language.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
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          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2023-40217"
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        {
          "category": "external",
          "summary": "RHBZ#2235789",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2235789"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2023-40217",
          "url": "https://www.cve.org/CVERecord?id=CVE-2023-40217"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2023-40217",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-40217"
        },
        {
          "category": "external",
          "summary": "https://github.com/python/cpython/issues/108310",
          "url": "https://github.com/python/cpython/issues/108310"
        },
        {
          "category": "external",
          "summary": "https://github.com/python/cpython/pull/108315",
          "url": "https://github.com/python/cpython/pull/108315"
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        {
          "category": "external",
          "summary": "https://mail.python.org/archives/list/security-announce@python.org/thread/PEPLII27KYHLF4AK3ZQGKYNCRERG4YXY/",
          "url": "https://mail.python.org/archives/list/security-announce@python.org/thread/PEPLII27KYHLF4AK3ZQGKYNCRERG4YXY/"
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      "release_date": "2023-08-25T00:00:00+00:00",
      "remediations": [
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          "date": "2023-11-02T15:54:28+00:00",
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      "scores": [
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            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
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            "userInteraction": "NONE",
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      "threats": [
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          "details": "Important"
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      "title": "python: TLS handshake bypass"
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  ]
}

cve-2023-40217

Vulnerability from cvelistv5

Published

2023-08-25 00:00

Modified

2024-10-02 16:32

Severity ?

Summary

An issue was discovered in Python before 3.8.18, 3.9.x before 3.9.18, 3.10.x before 3.10.13, and 3.11.x before 3.11.5. It primarily affects servers (such as HTTP servers) that use TLS client authentication. If a TLS server-side socket is created, receives data into the socket buffer, and then is closed quickly, there is a brief window where the SSLSocket instance will detect the socket as "not connected" and won't initiate a handshake, but buffered data will still be readable from the socket buffer. This data will not be authenticated if the server-side TLS peer is expecting client certificate authentication, and is indistinguishable from valid TLS stream data. Data is limited in size to the amount that will fit in the buffer. (The TLS connection cannot directly be used for data exfiltration because the vulnerable code path requires that the connection be closed on initialization of the SSLSocket.)

References

▼	URL	Tags
	https://www.python.org/dev/security/
	https://mail.python.org/archives/list/security-announce%40python.org/thread/PEPLII27KYHLF4AK3ZQGKYNCRERG4YXY/
	https://lists.debian.org/debian-lts-announce/2023/09/msg00022.html	mailing-list
	https://security.netapp.com/advisory/ntap-20231006-0014/
	https://lists.debian.org/debian-lts-announce/2023/10/msg00017.html	mailing-list

Impacted products

▼	Vendor	Product
	n/a	n/a

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

Action not permitted