CVE-2018-20852
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2018-20852
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-20852.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2018-20852
- Related
- Published
- 2019-07-13T21:15:10Z
- Modified
- 2024-09-18T01:00:22Z
- Severity
-
- 5.3 (Medium) CVSS_V3 - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N CVSS Calculator
- Summary
- [none]
- Details
-
http.cookiejar.DefaultPolicy.domainreturnok in Lib/http/cookiejar.py in Python before 3.7.3 does not correctly validate the domain: it can be tricked into sending existing cookies to the wrong server. An attacker may abuse this flaw by using a server with a hostname that has another valid hostname as a suffix (e.g., pythonicexample.com to steal cookies for example.com). When a program uses http.cookiejar.DefaultPolicy and tries to do an HTTP connection to an attacker-controlled server, existing cookies can be leaked to the attacker. This affects 2.x through 2.7.16, 3.x before 3.4.10, 3.5.x before 3.5.7, 3.6.x before 3.6.9, and 3.7.x before 3.7.3.
- References
-
- https://access.redhat.com/errata/RHSA-2019:3725
- https://access.redhat.com/errata/RHSA-2019:3948
- https://bugs.python.org/issue35121
- https://python-security.readthedocs.io/vuln/cookie-domain-check.html
- https://security.gentoo.org/glsa/202003-26
- http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00071.html
- http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00074.html
- http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.html
- https://lists.debian.org/debian-lts-announce/2019/08/msg00022.html
- https://lists.debian.org/debian-lts-announce/2019/08/msg00040.html
- https://lists.debian.org/debian-lts-announce/2020/07/msg00011.html
- https://lists.debian.org/debian-lts-announce/2020/08/msg00034.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/COATURTCY7G67AYI6UDV5B2JZTBCKIDX/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K7HNVIFMETMFWWWUNTB72KYJYXCZOS5V/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZBTGPBUABGXZ7WH7677OEM3NSP6ZEA76/
- https://usn.ubuntu.com/4127-1/
- https://usn.ubuntu.com/4127-2/
- https://www.oracle.com/security-alerts/cpuapr2020.html
- https://security-tracker.debian.org/tracker/CVE-2018-20852
Affected packages
Debian:11 / python2.7
Package
- Name
- python2.7
- Purl
- pkg:deb/debian/python2.7?arch=source