Bug 2179073 (CVE-2023-27535) - CVE-2023-27535 curl: FTP too eager connection reuse
Summary: CVE-2023-27535 curl: FTP too eager connection reuse
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2023-27535
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2179113 2179114 2179115 2179116 2179117 2179119 2179121 2180429 2180430
Blocks: 2178228
TreeView+ depends on / blocked
 
Reported: 2023-03-16 15:06 UTC by Marian Rehak
Modified: 2024-01-24 16:49 UTC (History)
17 users (show)

Fixed In Version: curl 8.0.0
Doc Type: If docs needed, set a value
Doc Text:
A flaw was found in the Curl package. Libcurl keeps previously used connections in a connection pool for subsequent transfers to reuse if one of them matches the setup. However, several FTP settings were left out from the configuration match checks, making them match too easily. The problematic settings are `CURLOPT_FTP_ACCOUNT`, `CURLOPT_FTP_ALTERNATIVE_TO_USER`, `CURLOPT_FTP_SSL_CCC` and `CURLOPT_USE_SSL` level.
Clone Of:
Environment:
Last Closed: 2023-05-18 02:31:33 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2023:2650 0 None None None 2023-05-09 11:05:38 UTC
Red Hat Product Errata RHSA-2023:3106 0 None None None 2023-05-16 10:02:34 UTC
Red Hat Product Errata RHSA-2024:0428 0 None None None 2024-01-24 16:49:08 UTC

Description Marian Rehak 2023-03-16 15:06:37 UTC 
libcurl keeps previously used connections in a connection pool for subsequent transfers to reuse if one of them matches the setup. However, several FTP settings were left out from the configuration match checks, making them match too easily. The settings in questions are `CURLOPT_FTP_ACCOUNT`, `CURLOPT_FTP_ALTERNATIVE_TO_USER`, `CURLOPT_FTP_SSL_CCC` and `CURLOPT_USE_SSL` level.
Comment 2 Sandipan Roy 2023-03-21 13:04:17 UTC 
Created curl tracking bugs for this issue:

Affects: fedora-all [bug 2180429]


Created mingw-curl tracking bugs for this issue:

Affects: fedora-all [bug 2180430]
Comment 4 errata-xmlrpc 2023-05-09 11:05:36 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2023:2650 https://access.redhat.com/errata/RHSA-2023:2650
Comment 5 errata-xmlrpc 2023-05-16 10:02:31 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2023:3106 https://access.redhat.com/errata/RHSA-2023:3106
Comment 7 Product Security DevOps Team 2023-05-18 02:31:30 UTC 
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2023-27535
Comment 9 errata-xmlrpc 2024-01-24 16:49:05 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.6 Extended Update Support

Via RHSA-2024:0428 https://access.redhat.com/errata/RHSA-2024:0428
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