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  5. CVE-2019-11236

CVE-2019-11236: Improper Neutralization of CRLF Sequences in urllib3 library for Python

May 13, 2022 (updated November 18, 2024)

In the urllib3 library through 1.24.2 for Python, CRLF injection is possible if the attacker controls the request parameter.

References

  • access.redhat.com/errata/RHSA-2019:2272
  • access.redhat.com/errata/RHSA-2019:3335
  • access.redhat.com/errata/RHSA-2019:3590
  • github.com/advisories/GHSA-r64q-w8jr-g9qp
  • github.com/pypa/advisory-database/tree/main/vulns/urllib3/PYSEC-2019-132.yaml
  • github.com/urllib3/urllib3
  • github.com/urllib3/urllib3/issues/1553
  • lists.debian.org/debian-lts-announce/2019/06/msg00016.html
  • lists.debian.org/debian-lts-announce/2021/06/msg00015.html
  • lists.debian.org/debian-lts-announce/2023/10/msg00012.html
  • lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NKGPJLVLVYCL4L4B4G5TIOTVK4BKPG72
  • lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/R62XGEYPUTXMRHGX5I37EBCGQ5COHGKR
  • lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TBI45HO533KYHNB5YRO43TBYKA3E3VRL
  • lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XOSA2NT4DUQDBEIWE6O7KKD24XND7TE2
  • nvd.nist.gov/vuln/detail/CVE-2019-11236
  • usn.ubuntu.com/3990-1
  • usn.ubuntu.com/3990-2

Code Behaviors & Features

Detect and mitigate CVE-2019-11236 with GitLab Dependency Scanning

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Affected versions

All versions before 1.24.3

Fixed versions

  • 1.24.3

Solution

Upgrade to version 1.24.3 or above.

Impact 6.1 MEDIUM

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Learn more about CVSS

Weakness

  • CWE-93: Improper Neutralization of CRLF Sequences ('CRLF Injection')

Source file

pypi/urllib3/CVE-2019-11236.yml

Spotted a mistake? Edit the file on GitLab.

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