High severity · published Jun 19, 2018
CVE-2018-1061
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
7.5
CVSS
4.7%
EPSS
No
On KEV
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 vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)4.7% · higher than 92% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PY
python · [UNKNOWN]
python 2.7.15; python 3.4.9; python 3.5.6; python 3.7.0 · source: vendor, NVD
AT
Ansible Tower · Redhat
3.3 · source: NVD
DL
Debian Linux · Debian
8.0; 9.0 · source: NVD
EL
Enterprise Linux Desktop · Redhat
7.0 · source: NVD
EL
Enterprise Linux Server · Redhat
7.0 · source: NVD
EL
Enterprise Linux Workstation · Redhat
7.0 · source: NVD
FE
Fedora · Fedoraproject
28; 29; 30 · source: NVD
UL
Ubuntu Linux · Canonical
12.04; 14.04; 16.04; 18.04 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-1061
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-1061
lists.opensuse.org
http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.html
Third Party Advisory
http://www.securitytracker.com/id/1042001
Third Party Advisory
https://access.redhat.com/errata/RHBA-2019:0327
Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3041
Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3505
access.redhat.com
https://access.redhat.com/errata/RHSA-2019:1260
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