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CVE-2023-27536

CVE-2023-27536

This page contains facts from public vulnerability sources. Check the original advisory before updating.

An authentication bypass vulnerability exists libcurl <8.0.0 in the connection reuse feature which can reuse previously established connections with incorrect user permissions due to a failure to check for changes in the CURLOPT_GSSAPI_DELEGATION option. This vulnerability affects krb5/kerberos/negotiate/GSSAPI transfers and could potentially result in unauthorized access to sensitive information. The safest option is to not reuse connections if the CURLOPT_GSSAPI_DELEGATION option has been changed.

CVSS 5.9 · Medium · EPSS 1.8% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • https://github.com/curl/curl

    Versions
    • Fixed in 8.0.0: Affected

    No fix published

  • curl Debian:12

    Affected ranges
    • ECOSYSTEM: < 7.88.1-7

    Update to 7.88.1-7

  • curl Debian:13

    Affected ranges
    • ECOSYSTEM: < 7.88.1-7

    Update to 7.88.1-7

  • curl Debian:14

    Affected ranges
    • ECOSYSTEM: < 7.88.1-7

    Update to 7.88.1-7

  • curl Ubuntu:Pro:14.04:LTS

    Versions
    • 7.32.0-1ubuntu1
    • 7.33.0-1ubuntu1
    • 7.34.0-1ubuntu1
    • 7.35.0-1ubuntu1
    • 7.35.0-1ubuntu2
    • 7.35.0-1ubuntu2.1
    • 7.35.0-1ubuntu2.2
    • 7.35.0-1ubuntu2.3
    • 7.35.0-1ubuntu2.5
    • 7.35.0-1ubuntu2.6
    • 7.35.0-1ubuntu2.7
    • 7.35.0-1ubuntu2.8
    • 7.35.0-1ubuntu2.9
    • 7.35.0-1ubuntu2.10
    • 7.35.0-1ubuntu2.11
    • 7.35.0-1ubuntu2.12
    • 7.35.0-1ubuntu2.13
    • 7.35.0-1ubuntu2.14
    • 7.35.0-1ubuntu2.15
    • 7.35.0-1ubuntu2.16
    • 7.35.0-1ubuntu2.17
    • 7.35.0-1ubuntu2.19
    • 7.35.0-1ubuntu2.20
    • 7.35.0-1ubuntu2.20+esm2
    • 7.35.0-1ubuntu2.20+esm3
    • 7.35.0-1ubuntu2.20+esm4
    • 7.35.0-1ubuntu2.20+esm5
    • 7.35.0-1ubuntu2.20+esm6
    • 7.35.0-1ubuntu2.20+esm7
    • 7.35.0-1ubuntu2.20+esm8
    • 7.35.0-1ubuntu2.20+esm9
    • 7.35.0-1ubuntu2.20+esm10
    • 7.35.0-1ubuntu2.20+esm11
    • 7.35.0-1ubuntu2.20+esm12
    • 7.35.0-1ubuntu2.20+esm13
    • 7.35.0-1ubuntu2.20+esm14
    Affected ranges
    • ECOSYSTEM: < 7.35.0-1ubuntu2.20+esm15

    Update to 7.35.0-1ubuntu2.20+esm15

  • curl Ubuntu:Pro:16.04:LTS

    Versions
    • 7.43.0-1ubuntu2
    • 7.45.0-1ubuntu1
    • 7.46.0-1ubuntu1
    • 7.47.0-1ubuntu1
    • 7.47.0-1ubuntu2
    • 7.47.0-1ubuntu2.1
    • 7.47.0-1ubuntu2.2
    • 7.47.0-1ubuntu2.3
    • 7.47.0-1ubuntu2.4
    • 7.47.0-1ubuntu2.5
    • 7.47.0-1ubuntu2.6
    • 7.47.0-1ubuntu2.7
    • 7.47.0-1ubuntu2.8
    • 7.47.0-1ubuntu2.9
    • 7.47.0-1ubuntu2.11
    • 7.47.0-1ubuntu2.12
    • 7.47.0-1ubuntu2.13
    • 7.47.0-1ubuntu2.14
    • 7.47.0-1ubuntu2.15
    • 7.47.0-1ubuntu2.16
    • 7.47.0-1ubuntu2.18
    • 7.47.0-1ubuntu2.19
    • 7.47.0-1ubuntu2.19+esm1
    • 7.47.0-1ubuntu2.19+esm2
    • 7.47.0-1ubuntu2.19+esm3
    • 7.47.0-1ubuntu2.19+esm4
    • 7.47.0-1ubuntu2.19+esm5
    • 7.47.0-1ubuntu2.19+esm6
    • 7.47.0-1ubuntu2.19+esm7
    Affected ranges
    • ECOSYSTEM: < 7.47.0-1ubuntu2.19+esm8

    Update to 7.47.0-1ubuntu2.19+esm8

  • curl Ubuntu:18.04:LTS

    Versions
    • 7.55.1-1ubuntu2
    • 7.55.1-1ubuntu2.1
    • 7.57.0-1ubuntu1
    • 7.58.0-2ubuntu1
    • 7.58.0-2ubuntu2
    • 7.58.0-2ubuntu3
    • 7.58.0-2ubuntu3.1
    • 7.58.0-2ubuntu3.2
    • 7.58.0-2ubuntu3.3
    • 7.58.0-2ubuntu3.5
    • 7.58.0-2ubuntu3.6
    • 7.58.0-2ubuntu3.7
    • 7.58.0-2ubuntu3.8
    • 7.58.0-2ubuntu3.9
    • 7.58.0-2ubuntu3.10
    • 7.58.0-2ubuntu3.12
    • 7.58.0-2ubuntu3.13
    • 7.58.0-2ubuntu3.14
    • 7.58.0-2ubuntu3.15
    • 7.58.0-2ubuntu3.16
    • 7.58.0-2ubuntu3.17
    • 7.58.0-2ubuntu3.18
    • 7.58.0-2ubuntu3.19
    • 7.58.0-2ubuntu3.20
    • 7.58.0-2ubuntu3.21
    • 7.58.0-2ubuntu3.22
    • 7.58.0-2ubuntu3.23
    Affected ranges
    • ECOSYSTEM: < 7.58.0-2ubuntu3.24

    Update to 7.58.0-2ubuntu3.24

  • curl Ubuntu:20.04:LTS

    Versions
    • 7.65.3-1ubuntu3
    • 7.65.3-1ubuntu4
    • 7.66.0-1ubuntu1
    • 7.67.0-2ubuntu1
    • 7.68.0-1ubuntu1
    • 7.68.0-1ubuntu2
    • 7.68.0-1ubuntu2.1
    • 7.68.0-1ubuntu2.2
    • 7.68.0-1ubuntu2.4
    • 7.68.0-1ubuntu2.5
    • 7.68.0-1ubuntu2.6
    • 7.68.0-1ubuntu2.7
    • 7.68.0-1ubuntu2.10
    • 7.68.0-1ubuntu2.11
    • 7.68.0-1ubuntu2.12
    • 7.68.0-1ubuntu2.13
    • 7.68.0-1ubuntu2.14
    • 7.68.0-1ubuntu2.15
    • 7.68.0-1ubuntu2.16
    Affected ranges
    • ECOSYSTEM: < 7.68.0-1ubuntu2.18

    Update to 7.68.0-1ubuntu2.18

  • curl Ubuntu:22.04:LTS

    Versions
    • 7.74.0-1.3ubuntu2
    • 7.74.0-1.3ubuntu3
    • 7.80.0-3
    • 7.81.0-1
    • 7.81.0-1ubuntu1.1
    • 7.81.0-1ubuntu1.2
    • 7.81.0-1ubuntu1.3
    • 7.81.0-1ubuntu1.4
    • 7.81.0-1ubuntu1.6
    • 7.81.0-1ubuntu1.7
    • 7.81.0-1ubuntu1.8
    Affected ranges
    • ECOSYSTEM: < 7.81.0-1ubuntu1.10

    Update to 7.81.0-1ubuntu1.10

Original sources

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