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Fencer Vulns
medium 6.2

CVE-2024-0450 json

Quoted zip-bomb protection for zipfile

published 2024-03-19 2 y ago modified 2026-06-17 4 mo ago also BIT-libpython-2024-0450 , BIT-python-2024-0450 , BIT-python-min-2024-0450 , EUVD-2024-16245

cvss
6.2
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 27%
public exploits
0
none known

Summary

An issue was found in the CPython `zipfile` module affecting versions 3.12.1, 3.11.7, 3.10.13, 3.9.18, and 3.8.18 and prior.

The zipfile module is vulnerable to “quoted-overlap” zip-bombs which exploit the zip format to create a zip-bomb with a high compression ratio. The fixed versions of CPython makes the zipfile module reject zip archives which overlap entries in the archive.

Patch / fix

  • bitnami libpython 3.8.19, 3.9.19, 3.10.14, 3.11.8, 3.12.2
  • bitnami python 3.8.19, 3.9.19, 3.10.14, 3.11.8, 3.12.2
  • bitnami python-min 3.8.19, 3.9.19, 3.10.14, 3.11.8, 3.12.2
  • Python Software Foundation CPython 3.8.19, 3.9.19, 3.10.14, 3.11.8, 3.12.2, 3.13.0a3
  • python cpython 3.8.18
  • pypy3 Debian 12 7.3.11+dfsg-2+deb12u2
  • pypy3 Debian 14, Debian 13 7.3.16+dfsg-1
  • python3.11 Debian 12 3.11.2-6+deb12u2

debian advisories DEBIAN-CVE-2024-0450

  • python3.8 Ubuntu 20.04 LTS 3.8.10-0ubuntu1~20.04.10
  • python3.10 Ubuntu 22.04 LTS 3.10.12-1~22.04.4
  • python2.7 Ubuntu Pro 20.04 LTS 2.7.18-1~20.04.7+esm4
  • python2.7 Ubuntu Pro 22.04 LTS 2.7.18-13ubuntu1.5+esm3
  • python3.5 Ubuntu Pro 14.04 LTS 3.5.2-2ubuntu0~16.04.4~14.04.1+esm1
  • python3.5 Ubuntu Pro 16.04 LTS 3.5.2-2ubuntu0~16.04.13+esm13
  • python3.6 Ubuntu Pro 18.04 LTS 3.6.9-1~18.04ubuntu1.13+esm2
  • python3.7 Ubuntu Pro 18.04 LTS 3.7.5-2ubuntu1~18.04.2+esm3

ubuntu advisories UBUNTU-CVE-2024-0450

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • python3.11 RHEL 9 3.11.9-7.el9
  • python3.11-idle RHEL 9 3.11.9-7.el9
  • python3.11-libs RHEL 9 3.11.9-7.el9
  • python3.11-test RHEL 9 3.11.9-7.el9
  • python3.11-tkinter RHEL 9 3.11.9-7.el9
  • python3.12 RHEL 9 3.12.5-2.el9
  • python3.12-idle RHEL 9 3.12.5-2.el9
  • python3.12-libs RHEL 9 3.12.5-2.el9

red hat advisories RHSA-2024:9192RHSA-2024:9190RHSA-2024:3466RHSA-2024:4078RHSA-2024:4058RHSA-2024:3391

  • python311 Linux Micro 6.1 3.11.12-slfo.1.1_1.1
  • python311-core Linux Micro 6.1 3.11.12-slfo.1.1_1.1
  • python311 Linux Micro 6.0 3.11.11-1.1
  • python311-core Linux Micro 6.0 3.11.11-1.1
  • python311 Linux Micro 6.0 3.11.8-3.1
  • python311-core Linux Micro 6.0 3.11.8-3.1
  • python3 SLES for SAP 15 SP4, SLES for SAP 15 SP3, SLES 15 SP4-LTSS +17 more 3.6.15-150300.10.65.2
  • python3-core SLES for SAP 15 SP4, SLES for SAP 15 SP3, SLES 15 SP4-LTSS +19 more 3.6.15-150300.10.65.1

suse advisories SUSE-SU-2025:20374-1SUSE-SU-2025:20154-1SUSE-SU-2025:20025-1SUSE-SU-2024:2479-1SUSE-SU-2024:1862-1SUSE-SU-2024:1847-1

  • python38 openSUSE Tumbleweed 3.8.19-1.1
  • python311 openSUSE Tumbleweed 3.11.8-5.1
  • python310 openSUSE Tumbleweed 3.10.14-1.1
  • python39 openSUSE Tumbleweed 3.9.19-1.1
  • python openSUSE Tumbleweed 2.7.18-47.1

opensuse advisories openSUSE-SU-2024:13790-1openSUSE-SU-2024:13794-1openSUSE-SU-2024:13799-1openSUSE-SU-2024:13800-1openSUSE-SU-2024:13983-1

  • python3.12 AlmaLinux 9 3.12.5-2.el9
  • python3.12-idle AlmaLinux 9 3.12.5-2.el9
  • python3.12-libs AlmaLinux 9 3.12.5-2.el9
  • python3.12-test AlmaLinux 9 3.12.5-2.el9
  • python3.12-tkinter AlmaLinux 9 3.12.5-2.el9
  • python3.11 AlmaLinux 9 3.11.9-7.el9
  • python3.11-idle AlmaLinux 9 3.11.9-7.el9
  • python3.11-libs AlmaLinux 9 3.11.9-7.el9

almalinux advisories ALSA-2024:9190ALSA-2024:9192ALSA-2024:4243ALSA-2024:4078ALSA-2024:4058ALSA-2024:3466

  • python3.12 Rocky Linux 8 3.12.3-2.el8_10
  • python3.12 Rocky Linux 9 3.12.5-2.el9_5.2
  • python3.11 Rocky Linux 9 3.11.9-7.el9_5.2
  • python3.9 Rocky Linux 9 3.9.18-3.el9_4.1
  • numpy Rocky Linux 8 1.19.4-3.module+el8.10.0+1582+bc278001
  • scipy Rocky Linux 8 1.5.4-5.module+el8.10.0+1582+bc278001
  • Cython Rocky Linux 8 0.29.21-5.module+el8.10.0+1582+bc278001
  • pytest Rocky Linux 8 6.0.2-2.module+el8.10.0+1582+bc278001

rocky linux advisories RLSA-2024:4243RLSA-2024:9190RLSA-2024:9192RLSA-2024:4078RLSA-2024:3466RLSA-2024:3347

  • python3 Alpine 3.17, Alpine 3.16 3.10.14-r0

alpine advisories ALPINE-CVE-2024-0450

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • python3 CBL-Mariner 2.0 3.9.19-1
  • python3 Azure Linux 3.0 3.12.3-1

azure linux advisories AZL-36894AZL-42573

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2024-0450 updated cvss 6.2

python: The zipfile module is vulnerable to zip-bombs leading to denial of service

  • Red Hat Enterprise Linux 7 python, python3, tkinter, python-libs, python-test, python-tools, +4 more
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat CodeReady Linux Builder (v. 9) python3.11 3.11.9-7.el9, python3.12 3.12.5-2.el9, python3.11-idle 3.11.9-7.el9, python3.11-test 3.11.9-7.el9, python3.12-idle 3.12.5-2.el9, python3.12-test 3.12.5-2.el9, +2 more
    fixed: vendor fix RHSA-2024:9192
  • Red Hat Enterprise Linux AppStream (v. 8) python3.11 3.11.9-1.el8_10, python3.12 3.12.3-2.el8_10, python3-idle 3.6.8-62.el8_10, python3-test 3.6.8-62.el8_10, platform-python 3.6.8-62.el8_10, python3-tkinter 3.6.8-62.el8_10, +61 more
    fixed: vendor fix RHSA-2024:3466
  • Red Hat Enterprise Linux AppStream (v. 9) python3.11 3.11.9-7.el9, python3.12 3.12.5-2.el9, python3.11-libs 3.11.9-7.el9, python3.12-libs 3.12.5-2.el9, python3.11-tkinter 3.11.9-7.el9, python3.12-tkinter 3.12.5-2.el9, +2 more
    fixed: vendor fix RHSA-2024:4078
  • Red Hat Enterprise Linux AppStream AUS (v.8.6) python3-idle 3.6.8-47.el8_6.6, python3-test 3.6.8-47.el8_6.6, platform-python 3.6.8-47.el8_6.6, python3-tkinter 3.6.8-47.el8_6.6 Red Hat Enterprise Linux AppStream E4S (v.8.6) python3-idle 3.6.8-47.el8_6.6, python3-test 3.6.8-47.el8_6.6, platform-python 3.6.8-47.el8_6.6, python3-tkinter 3.6.8-47.el8_6.6
    fixed: vendor fix RHSA-2024:4406
  • Red Hat Enterprise Linux AppStream EUS (v.8.8) python3-idle 3.6.8-51.el8_8.6, python3-test 3.6.8-51.el8_8.6, platform-python 3.6.8-51.el8_8.6, python3-tkinter 3.6.8-51.el8_8.6
    fixed: vendor fix RHSA-2024:3391
  • Red Hat Enterprise Linux AppStream TUS (v.8.6) python3-idle 3.6.8-47.el8_6.6, python3-test 3.6.8-47.el8_6.6, platform-python 3.6.8-47.el8_6.6, python3-tkinter 3.6.8-47.el8_6.6
    fixed: vendor fix RHSA-2024:4406
  • Red Hat Enterprise Linux BaseOS (v. 8) python3 3.6.8-62.el8_10, python3-libs 3.6.8-62.el8_10, python3-test 3.6.8-62.el8_10, platform-python 3.6.8-62.el8_10
    fixed: vendor fix RHSA-2024:3347
show 9 more
  • Red Hat Enterprise Linux BaseOS (v. 9) python3 3.9.18-3.el9_4.1, python3.9 3.9.18-3.el9_4.1, python3-libs 3.9.18-3.el9_4.1
    fixed: vendor fix RHSA-2024:4078
  • Red Hat Enterprise Linux BaseOS AUS (v.8.6) python3 3.6.8-47.el8_6.6, python3-libs 3.6.8-47.el8_6.6, python3-test 3.6.8-47.el8_6.6, platform-python 3.6.8-47.el8_6.6 Red Hat Enterprise Linux BaseOS E4S (v.8.6) python3 3.6.8-47.el8_6.6, python3-libs 3.6.8-47.el8_6.6, python3-test 3.6.8-47.el8_6.6, platform-python 3.6.8-47.el8_6.6
    fixed: vendor fix RHSA-2024:4406
  • Red Hat Enterprise Linux BaseOS EUS (v.8.8) python3 3.6.8-51.el8_8.6, python3-libs 3.6.8-51.el8_8.6, python3-test 3.6.8-51.el8_8.6, platform-python 3.6.8-51.el8_8.6
    fixed: vendor fix RHSA-2024:3391
  • Red Hat Enterprise Linux BaseOS TUS (v.8.6) python3 3.6.8-47.el8_6.6, python3-libs 3.6.8-47.el8_6.6, python3-test 3.6.8-47.el8_6.6, platform-python 3.6.8-47.el8_6.6
    fixed: vendor fix RHSA-2024:4406
  • Red Hat Enterprise Linux CRB (v. 8) python3.11 3.11.9-1.el8_10, python3.12 3.12.3-2.el8_10, python3.11-idle 3.11.9-1.el8_10, python3.11-test 3.11.9-1.el8_10, python3.12-idle 3.12.3-2.el8_10, python3.12-test 3.12.3-2.el8_10, +24 more
    fixed: vendor fix RHSA-2024:3466
  • Red Hat Enterprise Linux CRB (v. 9) python3 3.9.18-3.el9_4.1, python3-idle 3.9.18-3.el9_4.1, python3-test 3.9.18-3.el9_4.1, python3-tkinter 3.9.18-3.el9_4.1
    fixed: vendor fix RHSA-2024:4078
  • Red Hat Service Interconnect 1 service-interconnect/skupper-router-rhel9 2.5.3-2
    fixed: vendor fix RHSA-2024:4871
  • Red Hat Service Interconnect 1.4 service-interconnect/skupper-router-rhel9 2.4.3-5
    fixed: vendor fix RHSA-2024:4865
  • Red Hat Enterprise Linux 6 python, tkinter, python-libs, python-test, python-tools Red Hat Enterprise Linux 8 scipy, python2, python36, python-nose, python-wheel, python2-libs, +24 more Red Hat Enterprise Linux 10 python3.12 Red Hat Enterprise Linux AppStream E4S (v.8.6) python3-idle 3.6.8-47.el8_6.6, python3-tkinter 3.6.8-47.el8_6.6 Red Hat Enterprise Linux BaseOS E4S (v.8.6) python3-libs 3.6.8-47.el8_6.6, python3-test 3.6.8-47.el8_6.6, platform-python 3.6.8-47.el8_6.6 Red Hat Service Interconnect 1 service-interconnect/skupper-operator-bundle 1.5.5-1, service-interconnect/skupper-config-sync-rhel9 1.5.5-1, service-interconnect/skupper-flow-collector-rhel9 1.5.5-1, service-interconnect/skupper-site-controller-rhel9 1.5.5-1, service-interconnect/skupper-controller-podman-rhel9 1.5.5-1, service-interconnect/skupper-service-controller-rhel9 1.5.5-1, +1 more
    +1 more products
    Red Hat Service Interconnect 1.4 service-interconnect/skupper-operator-bundle 1.4.7-1, service-interconnect/skupper-config-sync-rhel9 1.4.7-1, service-interconnect/skupper-flow-collector-rhel9 1.4.7-1, service-interconnect/skupper-site-controller-rhel9 1.4.7-1, service-interconnect/skupper-service-controller-rhel9 1.4.7-1
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
partial
Assessed
2 y ago

Exploit prediction

0.34% chance of exploitation in the next 30 days, higher than 27% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 6.2 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
OSV 3.1 6.2 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected packages

ecosystem package affected fixed in
bitnami libpython
<3.8.19
>=3.9.0, <3.9.19
>=3.10.0, <3.10.14
>=3.11.0, <3.11.8
>=3.12.0, <3.12.2
3.8.19
3.9.19
3.10.14
3.11.8
3.12.2
bitnami python
<3.8.19
>=3.9.0, <3.9.19
>=3.10.0, <3.10.14
>=3.11.0, <3.11.8
>=3.12.0, <3.12.2
3.8.19
3.9.19
3.10.14
3.11.8
3.12.2
bitnami python-min
<3.8.19
>=3.9.0, <3.9.19
>=3.10.0, <3.10.14
>=3.11.0, <3.11.8
>=3.12.0, <3.12.2
3.8.19
3.9.19
3.10.14
3.11.8
3.12.2

Affected products

  • Python Software Foundation CPython
  • python cpython

Classification

Weakness
  • CWE-405 Asymmetric Resource Consumption (Amplification)

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.