This vulnerability has been modified since it was last analyzed by the NVD. It is awaiting reanalysis which may result in further changes to the information provided.
Current 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.
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.
NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.
Note: It is possible that the NVD CVSS may not match that of the CNA. The most common reason for this is that publicly available information does not provide sufficient detail or that information simply was not available at the time the CVSS vector string was assigned.
NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.
Note: NVD Analysts have published a CVSS score for this CVE based on publicly available information at the time of analysis. The CNA has not provided a score within the CVE List.
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OR
*cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:*
OR
*cpe:2.3:o:fedoraproject:fedora:28:*:*:*:*:*:*:*
*cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:*
*cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*
Changed
Reference Type
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/46PVWY5LFP4BRPG3BVQ5QEEFYBVEXHCK/ No Types Assigned
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/46PVWY5LFP4BRPG3BVQ5QEEFYBVEXHCK/ Mailing List, Third Party Advisory
Changed
Reference Type
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AEZ5IQT7OF7Q2NCGIVABOWYGKO7YU3NJ/ No Types Assigned
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AEZ5IQT7OF7Q2NCGIVABOWYGKO7YU3NJ/ Mailing List, Third Party Advisory
Changed
Reference Type
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JSKPGPZQNTAULHW4UH63KGOOUIDE4RRB/ Mailing List, Release Notes, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JSKPGPZQNTAULHW4UH63KGOOUIDE4RRB/ Mailing List, Third Party Advisory
OR
*cpe:2.3:a:redhat:ansible_tower:3.3:*:*:*:*:*:*:*
*cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
*cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
*cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*
Added
CPE Configuration
OR
*cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*
*cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
*cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
*cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
Added
CPE Configuration
OR
*cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:*
Changed
Reference Type
http://www.securitytracker.com/id/1042001 No Types Assigned
http://www.securitytracker.com/id/1042001 Third Party Advisory, VDB Entry
Changed
Reference Type
https://access.redhat.com/errata/RHSA-2018:3041 No Types Assigned
https://access.redhat.com/errata/RHSA-2018:3041 Third Party Advisory
Changed
Reference Type
https://access.redhat.com/errata/RHSA-2018:3505 No Types Assigned
https://access.redhat.com/errata/RHSA-2018:3505 Third Party Advisory
Changed
Reference Type
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JSKPGPZQNTAULHW4UH63KGOOUIDE4RRB/ No Types Assigned
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JSKPGPZQNTAULHW4UH63KGOOUIDE4RRB/ Mailing List, Release Notes, Third Party Advisory
Changed
Reference Type
https://usn.ubuntu.com/3817-1/ No Types Assigned
https://usn.ubuntu.com/3817-1/ Third Party Advisory
Changed
Reference Type
https://usn.ubuntu.com/3817-2/ No Types Assigned
https://usn.ubuntu.com/3817-2/ Third Party Advisory
OR
*cpe:2.3:a:python:python:*:*:*:*:*:*:*:* versions up to (excluding) 2.7.15
*cpe:2.3:a:python:python:*:*:*:*:*:*:*:* versions from (including) 3.0 up to (excluding) 3.4.9
*cpe:2.3:a:python:python:*:*:*:*:*:*:*:* versions from (including) 3.5.0 up to (including) 3.5.5
*cpe:2.3:a:python:python:*:*:*:*:*:*:*:* versions from (including) 3.6 up to (including) 3.6.4
*cpe:2.3:a:python:python:3.7.0:alpha1:*:*:*:*:*:*
*cpe:2.3:a:python:python:3.7.0:alpha2:*:*:*:*:*:*
Changed
CPE Configuration
OR
*cpe:2.3:a:python:python:*:*:*:*:*:*:*:* versions up to (excluding) 3.4.9
OR
*cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
*cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
Removed
CPE Configuration
OR
*cpe:2.3:a:python:python:*:*:*:*:*:*:*:* versions up to (excluding) 3.5.6
Removed
CPE Configuration
OR
*cpe:2.3:a:python:python:*:*:*:*:*:*:*:* versions up to (excluding) 3.7.0
Changed
Reference Type
https://docs.python.org/3.5/whatsnew/changelog.html#python-3-5-6-release-candidate-1 No Types Assigned
python before versions 2.7.15, 3.4.9, 3.5.6 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.
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.
