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.
CVSS breakdown
CVSS 3.0
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected products
- Canonical / Ubuntu Linux16.04 – 16.04
- Canonical / Ubuntu Linux12.04 – 12.04
- Canonical / Ubuntu Linux14.04 – 14.04
- Canonical / Ubuntu Linux18.04 – 18.04
- Debian / debian_linux8.0 – 8.0
- Debian / debian_linux9.0 – 9.0
- fedoraproject / fedora29 – 29
- fedoraproject / fedora30 – 30
- fedoraproject / fedora28 – 28
- Python / python3.7.0 – 3.7.0
- Python / python3.7.0 – 3.7.0
- Python / python3.7.0 – 3.7.0
- Python / python2.7.15
- Python / python3.7.0 – 3.7.0
- Python / python3.7.0 – 3.7.0
- Python / python3.7.0 – 3.7.0
- Python / python3.7.0 – 3.7.0
- Python / python3.7.0 – 3.7.0
- Python / python3.7.0 – 3.7.0
- Python / python3.7.0 – 3.7.0
- RedHat / ansible_tower3.3 – 3.3
- RedHat / enterprise_linux_desktop7.0 – 7.0
- RedHat / enterprise_linux_server7.0 – 7.0
- RedHat / enterprise_linux_workstation7.0 – 7.0
- Unknown / pythonpython 3.4.9 – python 3.4.9
- Unknown / pythonpython 2.7.15 – python 2.7.15
- Unknown / pythonpython 3.7.0 – python 3.7.0
- Unknown / pythonpython 3.5.6 – python 3.5.6
References
- VENDOR_ADVISORYhttps://www.debian.org/security/2018/dsa-4306
- MISChttps://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1061
- MISChttp://www.securitytracker.com/id/1042001
- MAILING_LISThttps://lists.debian.org/debian-lts-announce/2018/09/msg00031.html
- MISChttps://bugs.python.org/issue32981
- VENDOR_ADVISORYhttps://usn.ubuntu.com/3817-2/
- MISChttps://docs.python.org/3.6/whatsnew/changelog.html#python-3-6-5-release-candidate-1
- MISChttps://docs.python.org/3.5/whatsnew/changelog.html#python-3-5-6-release-candidate-1
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2018:3505
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2018:3041
- VENDOR_ADVISORYhttps://www.debian.org/security/2018/dsa-4307
- VENDOR_ADVISORYhttps://usn.ubuntu.com/3817-1/
- MAILING_LISThttps://lists.debian.org/debian-lts-announce/2018/09/msg00030.html
- MAILING_LISThttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JSKPGPZQNTAULHW4UH63KGOOUIDE4RRB/
- MAILING_LISThttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AEZ5IQT7OF7Q2NCGIVABOWYGKO7YU3NJ/
- MAILING_LISThttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/46PVWY5LFP4BRPG3BVQ5QEEFYBVEXHCK/
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHBA-2019:0327
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2019:1260
- MISChttps://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbst03951en_us
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2019:3725
- MAILING_LISThttp://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.html
Updated 36m ago · 8 sources