Heap-based Buffer Overflow Affecting libcurl-devel package, versions <0:7.19.7-37.el6_4


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating

    Threat Intelligence

    EPSS
    9.27% (95th percentile)

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  • Snyk ID SNYK-RHEL6-LIBCURLDEVEL-1464697
  • published 26 Jul 2021
  • disclosed 22 Jun 2013

How to fix?

Upgrade RHEL:6 libcurl-devel to version 0:7.19.7-37.el6_4 or higher.
This issue was patched in RHSA-2013:0983.

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:6 relevant fixed versions and status.

Heap-based buffer overflow in the curl_easy_unescape function in lib/escape.c in cURL and libcurl 7.7 through 7.30.0 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted string ending in a "%" (percent) character.

CVSS Scores

version 3.1
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NVD

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

6.3 medium