CVE-2018-1061

python: DOS via regular expression backtracking in difflib.IS_LINE_JUNK method in difflib

Published Jun 19, 2018 CVSS 3.0 · 6.5 Medium EPSS 4.7% KEV · Not listed
Description
python before versions 2.7.15, 3.4.9, 3.5.6rc1, 3.6.5rc1 and 3.7.0 is vulnerable to catastrophic backtracking in the difflib.IS_LINE_JUNK method. An attacker could use this flaw to cause denial of service.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

Source ID Title
Debian DLA Debian DLA DLA-1519-1 python2.7 security update
Debian DLA Debian DLA DLA-1520-1 python3.4 security update
Debian DSA Debian DSA DSA-4306-1 python2.7 security update
Debian DSA Debian DSA DSA-4307-1 python3.5 security update
EUVD EUVD EUVD-2018-11714 python before versions 2.7.15, 3.4.9, 3.5.6rc1, 3.6.5rc1 and 3.7.0 is vulnerable to catastrophic backtracking in the difflib.IS_LINE_JUNK method. An attacker could use this flaw to cause denial of service.
Ubuntu USN Ubuntu USN USN-3817-1 Python vulnerabilities
Ubuntu USN Ubuntu USN USN-3817-2 Python vulnerabilities
Ubuntu USN Ubuntu USN USN-6891-1 Python vulnerabilities
References
Link Providers
http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.html cve-icon cve-icon
http://www.securitytracker.com/id/1042001 cve-icon cve-icon
https://access.redhat.com/errata/RHBA-2019:0327 cve-icon cve-icon
https://access.redhat.com/errata/RHSA-2018:3041 cve-icon cve-icon
https://access.redhat.com/errata/RHSA-2018:3505 cve-icon cve-icon
https://access.redhat.com/errata/RHSA-2019:1260 cve-icon cve-icon
https://access.redhat.com/errata/RHSA-2019:3725 cve-icon cve-icon
https://bugs.python.org/issue32981 cve-icon cve-icon
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1061 cve-icon cve-icon
https://docs.python.org/3.5/whatsnew/changelog.html#python-3-5-6-release-candidate-1 cve-icon cve-icon
https://docs.python.org/3.6/whatsnew/changelog.html#python-3-6-5-final cve-icon
https://docs.python.org/3.6/whatsnew/changelog.html#python-3-6-5-release-candidate-1 cve-icon cve-icon
https://lists.debian.org/debian-lts-announce/2018/09/msg00030.html cve-icon cve-icon
https://lists.debian.org/debian-lts-announce/2018/09/msg00031.html cve-icon cve-icon
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/46PVWY5LFP4BRPG3BVQ5QEEFYBVEXHCK/ cve-icon cve-icon
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AEZ5IQT7OF7Q2NCGIVABOWYGKO7YU3NJ/ cve-icon cve-icon
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JSKPGPZQNTAULHW4UH63KGOOUIDE4RRB/ cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2018-1061 cve-icon
https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbst03951en_us cve-icon cve-icon
https://usn.ubuntu.com/3817-1/ cve-icon cve-icon
https://usn.ubuntu.com/3817-2/ cve-icon cve-icon
https://www.cve.org/CVERecord?id=CVE-2018-1061 cve-icon
https://www.debian.org/security/2018/dsa-4306 cve-icon cve-icon
https://www.debian.org/security/2018/dsa-4307 cve-icon cve-icon
History
Type Values Removed Values Added
Metrics ssvc

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

Type Values Removed Values Added
Metrics epss

{'score': 0.01469}

epss

{'score': 0.01399}