CVE-2019-9636 Information disclosure in n/a
Attackers can craft URLs to trick Python's urllib into sending sensitive cookies or credentials to the wrong host, leading to information disclosure.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2019-9636?
CVE-2019-9636 is a medium-severity vulnerability in Canonical Ubuntu Linux, published on 8 Mar 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Python 2.7.x through 2.7.16 and 3.x through 3.7.2 is affected by: Improper Handling of Unicode Encoding (with an incorrect netloc) during NFKC normalization. The impact is: Information disclosure (credentials, cookies, etc. that are cached against a given hostname). The components are: urllib.parse.urlsplit, urllib.parse.urlparse. The attack vector is: A specially crafted URL could be incorrectly parsed to locate cookies or authentication data and send that information to a different host than when parsed correctly. This is fixed in: v2.7.17, v2.7.17rc1, v2.7.18, v2.7.18rc1; v3.5.10, v3.5.10rc1, v3.5.7, v3.5.8, v3.5.8rc1, v3.5.8rc2, v3.5.9; v3.6.10, v3.6.10rc1, v3.6.11, v3.6.11rc1, v3.6.12, v3.6.9, v3.6.9rc1; v3.7.3, v3.7.3rc1, v3.7.4, v3.7.4rc1, v3.7.4rc2, v3.7.5, v3.7.5rc1, v3.7.6, v3.7.6rc1, v3.7.7, v3.7.7rc1, v3.7.8, v3.7.8rc1, v3.7.9.
Weakness: CWE-173
Which versions are affected by CVE-2019-9636?
It affects 16 products.
Linux distribution packages (40)
python Red Hat:enterprise_linux:6::client | All versions | 0:2.6.6-68.el6_10 |
python-debuginfo Red Hat:enterprise_linux:6::client | All versions | 0:2.6.6-68.el6_10 |
python-devel Red Hat:enterprise_linux:6::client | All versions | 0:2.6.6-68.el6_10 |
python-libs Red Hat:enterprise_linux:6::client | All versions | 0:2.6.6-68.el6_10 |
python-test Red Hat:enterprise_linux:6::client | All versions | 0:2.6.6-68.el6_10 |
python-tools Red Hat:enterprise_linux:6::client | All versions | 0:2.6.6-68.el6_10 |
tkinter Red Hat:enterprise_linux:6::client | All versions | 0:2.6.6-68.el6_10 |
python Red Hat:enterprise_linux:6::computenode | All versions | 0:2.6.6-68.el6_10 |
python-debuginfo Red Hat:enterprise_linux:6::computenode | All versions | 0:2.6.6-68.el6_10 |
python-devel Red Hat:enterprise_linux:6::computenode | All versions | 0:2.6.6-68.el6_10 |
python-libs Red Hat:enterprise_linux:6::computenode | All versions | 0:2.6.6-68.el6_10 |
python-test Red Hat:enterprise_linux:6::computenode | All versions | 0:2.6.6-68.el6_10 |
python-tools Red Hat:enterprise_linux:6::computenode | All versions | 0:2.6.6-68.el6_10 |
tkinter Red Hat:enterprise_linux:6::computenode | All versions | 0:2.6.6-68.el6_10 |
python Red Hat:enterprise_linux:6::server | All versions | 0:2.6.6-68.el6_10 |
python-debuginfo Red Hat:enterprise_linux:6::server | All versions | 0:2.6.6-68.el6_10 |
python-devel Red Hat:enterprise_linux:6::server | All versions | 0:2.6.6-68.el6_10 |
python-libs Red Hat:enterprise_linux:6::server | All versions | 0:2.6.6-68.el6_10 |
python-test Red Hat:enterprise_linux:6::server | All versions | 0:2.6.6-68.el6_10 |
python-tools Red Hat:enterprise_linux:6::server | All versions | 0:2.6.6-68.el6_10 |
tkinter Red Hat:enterprise_linux:6::server | All versions | 0:2.6.6-68.el6_10 |
python Red Hat:enterprise_linux:6::workstation | All versions | 0:2.6.6-68.el6_10 |
python-debuginfo Red Hat:enterprise_linux:6::workstation | All versions | 0:2.6.6-68.el6_10 |
python-devel Red Hat:enterprise_linux:6::workstation | All versions | 0:2.6.6-68.el6_10 |
python-libs Red Hat:enterprise_linux:6::workstation | All versions | 0:2.6.6-68.el6_10 |
python-test Red Hat:enterprise_linux:6::workstation | All versions | 0:2.6.6-68.el6_10 |
python-tools Red Hat:enterprise_linux:6::workstation | All versions | 0:2.6.6-68.el6_10 |
tkinter Red Hat:enterprise_linux:6::workstation | All versions | 0:2.6.6-68.el6_10 |
python Red Hat:enterprise_linux:7::client | All versions | 0:2.7.5-77.el7_6 |
python-debug Red Hat:enterprise_linux:7::client | All versions | 0:2.7.5-77.el7_6 |
python-debuginfo Red Hat:enterprise_linux:7::client | All versions | 0:2.7.5-77.el7_6 |
python-devel Red Hat:enterprise_linux:7::client | All versions | 0:2.7.5-77.el7_6 |
python-libs Red Hat:enterprise_linux:7::client | All versions | 0:2.7.5-77.el7_6 |
python-test Red Hat:enterprise_linux:7::client | All versions | 0:2.7.5-77.el7_6 |
python-tools Red Hat:enterprise_linux:7::client | All versions | 0:2.7.5-77.el7_6 |
tkinter Red Hat:enterprise_linux:7::client | All versions | 0:2.7.5-77.el7_6 |
python Red Hat:enterprise_linux:7::computenode | All versions | 0:2.7.5-77.el7_6 |
python-debug Red Hat:enterprise_linux:7::computenode | All versions | 0:2.7.5-77.el7_6 |
python-debuginfo Red Hat:enterprise_linux:7::computenode | All versions | 0:2.7.5-77.el7_6 |
python-devel Red Hat:enterprise_linux:7::computenode | All versions | 0:2.7.5-77.el7_6 |
Products include Canonical Ubuntu Linux, Debian Debian Linux, Fedoraproject Fedora, Opensuse Leap, Oracle Sun Zfs Storage Appliance Kit, Python Python and 10 more.
How do I fix CVE-2019-9636?
Upgrade to a fixed version.
Is CVE-2019-9636 being exploited?
There is no known exploitation of CVE-2019-9636 in the wild and no public exploit code.
Other vulnerabilities in Canonical Ubuntu Linux
Sources
Also known as ALPINE-CVE-2019-9636, DEBIAN-CVE-2019-9636, GHSA-v82r-hg27-h4wh, MGASA-2019-0148, PSF-2019-9, RHBA-2019:0763 and 13 more.