CVE & CISA-KEV Catalog

CVE-2019-9636

CRITICALEPSS 95th pctl
9.8
CVSS v3
NVD

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.

How to fix

Remediation Available
python2.7Debian
Fixed in:2.7.16-2CVE-2019-9636
python2.7Ubuntu
Fixed in:2.7.6-8ubuntu0.6+esm2USN-4127-2
Fixed in:2.7.12-1ubuntu0~16.04.8USN-4127-1
Fixed in:2.7.15-4ubuntu4~18.04.1USN-4127-1
python2.7-minimalUbuntu
Fixed in:2.7.6-8ubuntu0.6+esm2USN-4127-2
Fixed in:2.7.12-1ubuntu0~16.04.8USN-4127-1
Fixed in:2.7.15-4ubuntu4~18.04.1USN-4127-1
python3.10Ubuntu
Fixed in:3.10.12-1~22.04.4USN-6891-1
python3.10-minimalUbuntu
Fixed in:3.10.12-1~22.04.4USN-6891-1
python3.11Ubuntu
Fixed in:3.11.0~rc1-1~22.04.1~esm1USN-6891-1
Fixed in:3.11.6-3ubuntu0.1USN-6891-1
python3.11-minimalUbuntu
Fixed in:3.11.0~rc1-1~22.04.1~esm1USN-6891-1
Fixed in:3.11.6-3ubuntu0.1USN-6891-1
python3.12Ubuntu
Fixed in:3.12.0-1ubuntu0.1USN-6891-1
python3.12-minimalUbuntu
Fixed in:3.12.0-1ubuntu0.1USN-6891-1
python3.4Ubuntu
Fixed in:3.4.3-1ubuntu1~14.04.7+esm2USN-4127-2
python3.4-minimalUbuntu
Fixed in:3.4.3-1ubuntu1~14.04.7+esm2USN-4127-2
python3.5Ubuntu
Fixed in:3.5.2-2ubuntu0~16.04.4~14.04.1+esm1USN-6891-1
Fixed in:3.5.2-2ubuntu0~16.04.8USN-4127-1
Fixed in:3.5.2-2ubuntu0~16.04.13+esm13USN-6891-1
python3.5-minimalUbuntu
Fixed in:3.5.2-2ubuntu0~16.04.4~14.04.1+esm1USN-6891-1
Fixed in:3.5.2-2ubuntu0~16.04.13+esm13USN-6891-1
Fixed in:3.5.2-2ubuntu0~16.04.8USN-4127-1
python3.6Ubuntu
Fixed in:3.6.9-1~18.04ubuntu1.13+esm2USN-6891-1
Fixed in:3.6.8-1~18.04.2USN-4127-1
python3.6-minimalUbuntu
Fixed in:3.6.9-1~18.04ubuntu1.13+esm2USN-6891-1
Fixed in:3.6.8-1~18.04.2USN-4127-1
python3.7Ubuntu
Fixed in:3.7.5-2ubuntu1~18.04.2+esm3USN-6891-1
python3.7-minimalUbuntu
Fixed in:3.7.5-2ubuntu1~18.04.2+esm3USN-6891-1
python3.8Ubuntu
Fixed in:3.8.0-3ubuntu1~18.04.2+esm2USN-6891-1
Fixed in:3.8.10-0ubuntu1~20.04.10USN-6891-1
python3.8-minimalUbuntu
Fixed in:3.8.0-3ubuntu1~18.04.2+esm2USN-6891-1
Fixed in:3.8.10-0ubuntu1~20.04.10USN-6891-1
python3.9Ubuntu
Fixed in:3.9.5-3ubuntu0~20.04.1+esm2USN-6891-1
python3.9-minimalUbuntu
Fixed in:3.9.5-3ubuntu0~20.04.1+esm2USN-6891-1
Python 2Windows application
Affected:3.0.0 3.4.10Fixed in:3.4.10Python Software Foundation
Affected:3.6.0 3.6.9Fixed in:3.6.9Python Software Foundation
Affected:3.5.0 3.5.7Fixed in:3.5.7Python Software Foundation
Affected:2.7.0 2.7.17Fixed in:2.7.17Python Software Foundation
Affected:3.7.0 3.7.3Fixed in:3.7.3Python Software Foundation
Python 3.10Windows application
Affected:3.5.0 3.5.7Fixed in:3.5.7Python Software Foundation
Affected:3.6.0 3.6.9Fixed in:3.6.9Python Software Foundation
Affected:2.7.0 2.7.17Fixed in:2.7.17Python Software Foundation
Affected:3.7.0 3.7.3Fixed in:3.7.3Python Software Foundation
Affected:3.0.0 3.4.10Fixed in:3.4.10Python Software Foundation
Python 3.11Windows application
Affected:3.0.0 3.4.10Fixed in:3.4.10Python Software Foundation
Affected:2.7.0 2.7.17Fixed in:2.7.17Python Software Foundation
Affected:3.7.0 3.7.3Fixed in:3.7.3Python Software Foundation
Affected:3.6.0 3.6.9Fixed in:3.6.9Python Software Foundation
Affected:3.5.0 3.5.7Fixed in:3.5.7Python Software Foundation
Python 3.12Windows application
Affected:3.0.0 3.4.10Fixed in:3.4.10Python Software Foundation
Affected:2.7.0 2.7.17Fixed in:2.7.17Python Software Foundation
Affected:3.5.0 3.5.7Fixed in:3.5.7Python Software Foundation
Affected:3.7.0 3.7.3Fixed in:3.7.3Python Software Foundation
Affected:3.6.0 3.6.9Fixed in:3.6.9Python Software Foundation
Python 3.8Windows application
Affected:3.7.0 3.7.3Fixed in:3.7.3Python Software Foundation
Affected:3.0.0 3.4.10Fixed in:3.4.10Python Software Foundation
Affected:3.6.0 3.6.9Fixed in:3.6.9Python Software Foundation
Affected:2.7.0 2.7.17Fixed in:2.7.17Python Software Foundation
Affected:3.5.0 3.5.7Fixed in:3.5.7Python Software Foundation
Python 3.9Windows application
Affected:3.6.0 3.6.9Fixed in:3.6.9Python Software Foundation
Affected:3.0.0 3.4.10Fixed in:3.4.10Python Software Foundation
Affected:2.7.0 2.7.17Fixed in:2.7.17Python Software Foundation
Affected:3.7.0 3.7.3Fixed in:3.7.3Python Software Foundation
Affected:3.5.0 3.5.7Fixed in:3.5.7Python Software Foundation

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

8.81%probability of exploitation in 30 days
95thpercentile

High risk: more likely to be exploited than 95% of all known CVEs.

References

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.