CVE-2024-5642
Buffer overread when using an empty list with SSLContext.set_npn_protocols()
02 Description
Buffer overread when using an empty list with SSLContext.set_npn_protocols()
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 0.74% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 54.3% of scored records. A rank, not a probability.
- NVD base score
- 6.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
- NVD analysis status
- Deferred. NVD last modified this record on 2026-07-31.
- Red Hat severity
- Low. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2024-06-27 21:05Z2 YR AGO
- Last updated
- 2026-07-31 14:06Z3 MO AGO
- Reserved
- 2024-06-04
- Assigning CNA
- PSF
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 6.5)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
- Weaknesses
- CWE-20Improper Input ValidationClass
- Data version
- 5.2
- Document digest
- d3752ed3f5e248c29dbbd0295f4311646e9894943d412b3a12a4689a0f0b6cb8
05 Affected products
06 References
- jbp.iohttps://jbp.io/2024/06/27/cve-2024-5535-openssl-memory-safety.html
- github.comhttps://github.com/python/cpython/pull/23014
- mail.python.orghttps://mail.python.org/archives/list/security-announce@python.org/thread/PLP2JI3PJY33YG6P5BZYSSNU66HASXBQ/
- github.comhttps://github.com/python/cpython/commit/39258d3595300bc7b952854c915f63ae2d4b9c3e
- www.openwall.comhttp://www.openwall.com/lists/oss-security/2024/06/28/4
- github.comhttps://github.com/python/cpython/issues/121227
- security.netapp.comhttps://security.netapp.com/advisory/ntap-20240726-0005/
- github.comhttps://github.com/python/cpython/commit/a2cdbb6e8188ba9ba8b356b28d91bff60e86fe31
07 Fixed in
AlmaLinux 8
- python39 Fixed in 3.9.25-2.module_el8.10.0+4083+53cad1fb
- python39-Cython Fixed
A version is affected if any line below covers it.
- Affected before 0.29.21-5.module_el8.6.0+2780+a40f65e1
- Affected before 0.29.21-5.module_el8.6.0+3248+c431e88c
- python39-PyMySQL Fixed in 0.10.1-2.module_el8.6.0+2780+a40f65e1
- python39-attrs Fixed in 20.3.0-2.module_el8.6.0+2780+a40f65e1
- python39-cffi Fixed
A version is affected if any line below covers it.
- Affected before 1.14.3-2.module_el8.6.0+2780+a40f65e1
- Affected before 1.14.3-2.module_el8.6.0+3248+c431e88c
- python39-chardet Fixed in 3.0.4-19.module_el8.6.0+2780+a40f65e1
- python39-cryptography Fixed in 3.3.1-3.module_el8.10.0+3765+2f9a457d
- python39-debug Fixed in 3.9.25-2.module_el8.10.0+4083+53cad1fb
- python39-devel Fixed in 3.9.25-2.module_el8.10.0+4083+53cad1fb
- python39-idle Fixed in 3.9.25-2.module_el8.10.0+4083+53cad1fb
- python39-idna Fixed in 2.10-4.module_el8.10.0+3849+a48d89aa
- python39-iniconfig Fixed in 1.1.1-2.module_el8.6.0+2780+a40f65e1
- python39-libs Fixed in 3.9.25-2.module_el8.10.0+4083+53cad1fb
- python39-lxml Fixed
A version is affected if any line below covers it.
- Affected before 4.6.5-1.module_el8.6.0+2780+a40f65e1
- Affected before 4.6.5-1.module_el8.6.0+3248+c431e88c
- python39-mod_wsgi Fixed in 4.7.1-7.module_el8.10.0+3989+a618fe15.1
- python39-more-itertools Fixed in 8.5.0-2.module_el8.6.0+2780+a40f65e1
- python39-numpy Fixed
A version is affected if any line below covers it.
- Affected before 1.19.4-3.module_el8.6.0+2780+a40f65e1
- Affected before 1.19.4-3.module_el8.6.0+3248+c431e88c
- python39-numpy-doc Fixed in 1.19.4-3.module_el8.6.0+2780+a40f65e1
- python39-numpy-f2py Fixed
A version is affected if any line below covers it.
- Affected before 1.19.4-3.module_el8.6.0+2780+a40f65e1
- Affected before 1.19.4-3.module_el8.6.0+3248+c431e88c
- python39-packaging Fixed in 20.4-4.module_el8.6.0+2780+a40f65e1
- python39-pip Fixed in 20.2.4-9.module_el8.10.0+3765+2f9a457d
- python39-pip-wheel Fixed in 20.2.4-9.module_el8.10.0+3765+2f9a457d
- python39-pluggy Fixed in 0.13.1-3.module_el8.6.0+2780+a40f65e1
- python39-ply Fixed in 3.11-10.module_el8.6.0+2780+a40f65e1
- python39-psutil Fixed
A version is affected if any line below covers it.
- Affected before 5.8.0-4.module_el8.6.0+2780+a40f65e1
- Affected before 5.8.0-4.module_el8.6.0+3248+c431e88c
- python39-psycopg2 Fixed in 2.8.6-3.module_el8.10.0+3765+2f9a457d
- python39-psycopg2-doc Fixed in 2.8.6-3.module_el8.10.0+3765+2f9a457d
- python39-psycopg2-tests Fixed in 2.8.6-3.module_el8.10.0+3765+2f9a457d
- python39-py Fixed in 1.10.0-1.module_el8.6.0+2780+a40f65e1
- python39-pybind11 Fixed
A version is affected if any line below covers it.
- Affected before 2.7.1-1.module_el8.6.0+2780+a40f65e1
- Affected before 2.7.1-1.module_el8.6.0+3248+c431e88c
- python39-pybind11-devel Fixed
A version is affected if any line below covers it.
- Affected before 2.7.1-1.module_el8.6.0+2780+a40f65e1
- Affected before 2.7.1-1.module_el8.6.0+3248+c431e88c
- python39-pycparser Fixed in 2.20-3.module_el8.6.0+2780+a40f65e1
- python39-pyparsing Fixed in 2.4.7-5.module_el8.6.0+2780+a40f65e1
- python39-pysocks Fixed in 1.7.1-4.module_el8.6.0+2780+a40f65e1
- python39-pytest Fixed in 6.0.2-2.module_el8.6.0+2780+a40f65e1
- python39-pyyaml Fixed
A version is affected if any line below covers it.
- Affected before 5.4.1-1.module_el8.6.0+2780+a40f65e1
- Affected before 5.4.1-1.module_el8.6.0+3248+c431e88c
- python39-requests Fixed in 2.25.0-3.module_el8.9.0+3634+fb2a896c
- python39-rpm-macros Fixed in 3.9.25-2.module_el8.10.0+4083+53cad1fb
- python39-scipy Fixed in 1.5.4-5.module_el8.9.0+3634+fb2a896c
- python39-setuptools Fixed in 50.3.2-7.module_el8.10.0+4040+9207bbc0
9 further packages in AlmaLinux 8 not shown (first 40 listed).
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
AlmaLinux 9
- python-unversioned-command Fixed in 3.9.25-2.el9_7
- python3 Fixed in 3.9.25-2.el9_7
- python3-debug Fixed in 3.9.25-2.el9_7
- python3-devel Fixed in 3.9.25-2.el9_7
- python3-idle Fixed in 3.9.25-2.el9_7
- python3-libs Fixed in 3.9.25-2.el9_7
- python3-test Fixed in 3.9.25-2.el9_7
- python3-tkinter Fixed in 3.9.25-2.el9_7
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
CloudLinux 8
- python39 Fixed in 3.9.25-2.module_el8.10.0+4083+53cad1fb
- python39-Cython Fixed
A version is affected if any line below covers it.
- Affected before 0.29.21-5.module_el8.6.0+2780+a40f65e1
- Affected before 0.29.21-5.module_el8.6.0+3248+c431e88c
- python39-PyMySQL Fixed in 0.10.1-2.module_el8.6.0+2780+a40f65e1
- python39-attrs Fixed in 20.3.0-2.module_el8.6.0+2780+a40f65e1
- python39-cffi Fixed
A version is affected if any line below covers it.
- Affected before 1.14.3-2.module_el8.6.0+2780+a40f65e1
- Affected before 1.14.3-2.module_el8.6.0+3248+c431e88c
- python39-chardet Fixed in 3.0.4-19.module_el8.6.0+2780+a40f65e1
- python39-cryptography Fixed in 3.3.1-3.module_el8.10.0+3765+2f9a457d
- python39-debug Fixed in 3.9.25-2.module_el8.10.0+4083+53cad1fb
- python39-devel Fixed in 3.9.25-2.module_el8.10.0+4083+53cad1fb
- python39-idle Fixed in 3.9.25-2.module_el8.10.0+4083+53cad1fb
- python39-idna Fixed in 2.10-4.module_el8.10.0+3849+a48d89aa
- python39-iniconfig Fixed in 1.1.1-2.module_el8.6.0+2780+a40f65e1
- python39-libs Fixed in 3.9.25-2.module_el8.10.0+4083+53cad1fb
- python39-lxml Fixed
A version is affected if any line below covers it.
- Affected before 4.6.5-1.module_el8.6.0+2780+a40f65e1
- Affected before 4.6.5-1.module_el8.6.0+3248+c431e88c
- python39-mod_wsgi Fixed in 4.7.1-7.module_el8.10.0+3989+a618fe15.1
- python39-more-itertools Fixed in 8.5.0-2.module_el8.6.0+2780+a40f65e1
- python39-numpy Fixed
A version is affected if any line below covers it.
- Affected before 1.19.4-3.module_el8.6.0+2780+a40f65e1
- Affected before 1.19.4-3.module_el8.6.0+3248+c431e88c
- python39-numpy-doc Fixed in 1.19.4-3.module_el8.6.0+2780+a40f65e1
- python39-numpy-f2py Fixed
A version is affected if any line below covers it.
- Affected before 1.19.4-3.module_el8.6.0+2780+a40f65e1
- Affected before 1.19.4-3.module_el8.6.0+3248+c431e88c
- python39-packaging Fixed in 20.4-4.module_el8.6.0+2780+a40f65e1
- python39-pip Fixed in 20.2.4-9.module_el8.10.0+3765+2f9a457d
- python39-pip-wheel Fixed in 20.2.4-9.module_el8.10.0+3765+2f9a457d
- python39-pluggy Fixed in 0.13.1-3.module_el8.6.0+2780+a40f65e1
- python39-ply Fixed in 3.11-10.module_el8.6.0+2780+a40f65e1
- python39-psutil Fixed
A version is affected if any line below covers it.
- Affected before 5.8.0-4.module_el8.6.0+2780+a40f65e1
- Affected before 5.8.0-4.module_el8.6.0+3248+c431e88c
- python39-psycopg2 Fixed in 2.8.6-3.module_el8.10.0+3765+2f9a457d
- python39-psycopg2-doc Fixed in 2.8.6-3.module_el8.10.0+3765+2f9a457d
- python39-psycopg2-tests Fixed in 2.8.6-3.module_el8.10.0+3765+2f9a457d
- python39-py Fixed in 1.10.0-1.module_el8.6.0+2780+a40f65e1
- python39-pybind11 Fixed
A version is affected if any line below covers it.
- Affected before 2.7.1-1.module_el8.6.0+2780+a40f65e1
- Affected before 2.7.1-1.module_el8.6.0+3248+c431e88c
- python39-pybind11-devel Fixed
A version is affected if any line below covers it.
- Affected before 2.7.1-1.module_el8.6.0+2780+a40f65e1
- Affected before 2.7.1-1.module_el8.6.0+3248+c431e88c
- python39-pycparser Fixed in 2.20-3.module_el8.6.0+2780+a40f65e1
- python39-pyparsing Fixed in 2.4.7-5.module_el8.6.0+2780+a40f65e1
- python39-pysocks Fixed in 1.7.1-4.module_el8.6.0+2780+a40f65e1
- python39-pytest Fixed in 6.0.2-2.module_el8.6.0+2780+a40f65e1
- python39-pyyaml Fixed
A version is affected if any line below covers it.
- Affected before 5.4.1-1.module_el8.6.0+2780+a40f65e1
- Affected before 5.4.1-1.module_el8.6.0+3248+c431e88c
- python39-requests Fixed in 2.25.0-3.module_el8.9.0+3634+fb2a896c
- python39-rpm-macros Fixed in 3.9.25-2.module_el8.10.0+4083+53cad1fb
- python39-scipy Fixed in 1.5.4-5.module_el8.9.0+3634+fb2a896c
- python39-setuptools Fixed in 50.3.2-7.module_el8.10.0+4040+9207bbc0
9 further packages in CloudLinux 8 not shown (first 40 listed).
Derived from AlmaLinux 8. Partial coverage: only packages taken from AlmaLinux 8 are listed.
Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
CloudLinux 9
- python-unversioned-command Fixed in 3.9.25-2.el9_7
- python3 Fixed in 3.9.25-2.el9_7
- python3-debug Fixed in 3.9.25-2.el9_7
- python3-devel Fixed in 3.9.25-2.el9_7
- python3-idle Fixed in 3.9.25-2.el9_7
- python3-libs Fixed in 3.9.25-2.el9_7
- python3-test Fixed in 3.9.25-2.el9_7
- python3-tkinter Fixed in 3.9.25-2.el9_7
Derived from AlmaLinux 9. Partial coverage: only packages taken from AlmaLinux 9 are listed.
Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
Debian 12
- pypy3 Fixed in 7.3.10+dfsg-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- pypy3 Fixed in 7.3.10+dfsg-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- pypy3 Fixed in 7.3.10+dfsg-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 14.04 LTS
- python2.7 No fix yet
- python3.4 No fix yet
- python3.5 No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 16.04 LTS
- python2.7 No fix yet
- python3.5 No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 18.04 LTS
- python2.7 No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 20.04 LTS
- python2.7 No fix yet
- python3.9 No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 22.04 LTS
- python2.7 No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.