CVE-2018-1061
MEDIUM severity · CVSS 6.5 · Improper input validation
6.5CVSS MEDIUM
Summary
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.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionRequired
Confidentiality impactNone
Integrity impactNone
Availability impactHigh
Exploit probability (EPSS)2%
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Additional information
- NVD record
- https://bugs.python.org/issue32981Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.html
- http://www.securitytracker.com/id/1042001Advisory
- https://access.redhat.com/errata/RHBA-2019:0327Advisory
- https://access.redhat.com/errata/RHSA-2018:3041Advisory
- https://access.redhat.com/errata/RHSA-2018:3505Advisory
- https://access.redhat.com/errata/RHSA-2019:1260
- https://access.redhat.com/errata/RHSA-2019:3725