Expected Behavior Violation Affecting libcurl-devel package, versions <0:7.61.1-22.el8_6.12


Severity

Recommended
medium

Based on Red Hat Enterprise Linux security rating

    Threat Intelligence

    EPSS
    0.14% (50th percentile)

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  • Snyk ID SNYK-RHEL8-LIBCURLDEVEL-6197606
  • published 26 Jan 2024
  • disclosed 17 May 2023

How to fix?

Upgrade RHEL:8 libcurl-devel to version 0:7.61.1-22.el8_6.12 or higher.
This issue was patched in RHSA-2024:0428.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libcurl-devel package and not the libcurl-devel package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

An information disclosure vulnerability exists in curl <v8.1.0 when doing HTTP(S) transfers, libcurl might erroneously use the read callback (CURLOPT_READFUNCTION) to ask for data to send, even when the CURLOPT_POSTFIELDS option has been set, if the same handle previously wasused to issue a PUT request which used that callback. This flaw may surprise the application and cause it to misbehave and either send off the wrong data or use memory after free or similar in the second transfer. The problem exists in the logic for a reused handle when it is (expected to be) changed from a PUT to a POST.

CVSS Scores

version 3.1
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NVD

3.7 low
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    High
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    Low
  • Integrity (I)
    None
  • Availability (A)
    None
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Red Hat

3.7 low
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SUSE

6.5 medium