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Out-of-bounds Read Affecting libssh2 package, versions <0:1.4.3-12.amzn2.2.4

0.0
medium

Snyk CVSS

    Attack Complexity High
    User Interaction Required

    Threat Intelligence

    EPSS 2.07% (89th percentile)
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NVD
9.1 critical
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SUSE
3.5 low
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Red Hat
5 medium

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  • Snyk ID SNYK-AMZN2-LIBSSH2-5538577
  • published 17 May 2023
  • disclosed 21 Mar 2019
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Introduced: 21 Mar 2019

CVE-2019-3859 Open this link in a new tab
CWE-125 Open this link in a new tab

How to fix?

Upgrade Amazon-Linux:2 libssh2 to version 0:1.4.3-12.amzn2.2.4 or higher.
This issue was patched in ALAS2-2023-2046.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libssh2 package and not the libssh2 package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 relevant fixed versions and status.

An out of bounds read flaw was discovered in libssh2 before 1.8.1 in the _libssh2_packet_require and _libssh2_packet_requirev functions. A remote attacker who compromises a SSH server may be able to cause a Denial of Service or read data in the client memory.

References