CVE-2019-20907

python: infinite loop in the tarfile module via crafted TAR archive

Published Jul 13, 2020 CVSS 3.1 · 5.5 Medium EPSS 3.0% KEV · Not listed
Description
In Lib/tarfile.py in Python through 3.8.3, an attacker is able to craft a TAR archive leading to an infinite loop when opened by tarfile.open, because _proc_pax lacks header validation.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-2337-1 python2.7 security update
Debian DLA Debian DLA DLA-2456-1 python3.5 security update
Debian DLA Debian DLA DLA-3432-1 python2.7 security update
EUVD EUVD EUVD-2019-11441 In Lib/tarfile.py in Python through 3.8.3, an attacker is able to craft a TAR archive leading to an infinite loop when opened by tarfile.open, because _proc_pax lacks header validation.
Ubuntu USN Ubuntu USN USN-4428-1 Python vulnerabilities
Ubuntu USN Ubuntu USN USN-4754-3 Python vulnerabilities
Ubuntu USN Ubuntu USN USN-6891-1 Python vulnerabilities
References
Link Providers
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00051.html cve-icon cve-icon
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00052.html cve-icon cve-icon
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00053.html cve-icon cve-icon
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00056.html cve-icon cve-icon
https://bugs.python.org/issue39017 cve-icon cve-icon
https://cert-portal.siemens.com/productcert/html/ssa-398330.html cve-icon
https://github.com/python/cpython/pull/21454 cve-icon cve-icon
https://lists.debian.org/debian-lts-announce/2020/08/msg00034.html cve-icon cve-icon
https://lists.debian.org/debian-lts-announce/2020/11/msg00032.html cve-icon cve-icon
https://lists.debian.org/debian-lts-announce/2023/05/msg00024.html cve-icon cve-icon
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/36XI3EEQNMHGOZEI63Y7UV6XZRELYEAU/ cve-icon cve-icon
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CAXHCY4V3LPAAJOBCJ26ISZ4NUXQXTUZ/ cve-icon cve-icon
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CNHPQGSP2YM3JAUD2VAMPXTIUQTZ2M2U/ cve-icon cve-icon
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CTUNTBJ3POHONQOTLEZC46POCIYYTAKZ/ cve-icon cve-icon
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LE4O3PNDNNOMSKHNUKZKD3NGHIFUFDPX/ cve-icon cve-icon
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NTBKKOLFFNHG6CM4ACDX4APHSD5ZX5N4/ cve-icon cve-icon
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OXI72HIHMXCQFWTULUXDG7VDA2BCYL4Y/ cve-icon cve-icon
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PDKKRXLNVXRF6VGERZSR3OMQR5D5QI6I/ cve-icon cve-icon
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TOGKLGTXZLHQQFBVCAPSUDA6DOOJFNRY/ cve-icon cve-icon
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V3TALOUBYU2MQD4BPLRTDQUMBKGCAXUA/ cve-icon cve-icon
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V53P2YOLEQH4J7S5QHXMKMZYFTVVMTMO/ cve-icon cve-icon
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VT4AF72TJ2XNIKCR4WEBR7URBJJ4YZRD/ cve-icon cve-icon
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YILCHHTNLH4GG4GSQBX2MZRKZBXOLCKE/ cve-icon cve-icon
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YSL3XWVDMSMKO23HR74AJQ6VEM3C2NTS/ cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2019-20907 cve-icon
https://security.gentoo.org/glsa/202008-01 cve-icon cve-icon
https://security.netapp.com/advisory/ntap-20200731-0002/ cve-icon cve-icon
https://usn.ubuntu.com/4428-1/ cve-icon cve-icon
https://www.cve.org/CVERecord?id=CVE-2019-20907 cve-icon
https://www.oracle.com/security-alerts/cpujan2021.html cve-icon cve-icon
History
Type Values Removed Values Added
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}