CVE-2019-3859 (GCVE-0-2019-3859)

Vulnerability from cvelistv5 – Published: 2019-03-20 21:18 – Updated: 2025-12-18 11:43
VLAI
Summary
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.
Severity
5 (Medium)
CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L
CWE
Assigner
References
URL Tags
http://www.openwall.com/lists/oss-security/2019/03/18/3 mailing-listx_refsource_MLIST
https://seclists.org/bugtraq/2019/Mar/25 mailing-listx_refsource_BUGTRAQ
https://www.libssh2.org/CVE-2019-3859.html x_refsource_MISC
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2… x_refsource_CONFIRM
http://packetstormsecurity.com/files/152136/Slack… x_refsource_MISC
http://www.securityfocus.com/bid/107485 vdb-entryx_refsource_BID
https://lists.fedoraproject.org/archives/list/pac… vendor-advisoryx_refsource_FEDORA
https://www.broadcom.com/support/fibre-channel-ne… x_refsource_CONFIRM
https://lists.debian.org/debian-lts-announce/2019… mailing-listx_refsource_MLIST
https://security.netapp.com/advisory/ntap-2019032… x_refsource_CONFIRM
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
https://lists.debian.org/debian-lts-announce/2019… mailing-listx_refsource_MLIST
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
https://lists.fedoraproject.org/archives/list/pac… vendor-advisoryx_refsource_FEDORA
https://www.debian.org/security/2019/dsa-4431 vendor-advisoryx_refsource_DEBIAN
https://seclists.org/bugtraq/2019/Apr/25 mailing-listx_refsource_BUGTRAQ
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
https://lists.debian.org/debian-lts-announce/2019… mailing-listx_refsource_MLIST
https://www.oracle.com/technetwork/security-advis… x_refsource_MISC
Impacted products
Date Public
2019-03-13 00:00
Show details on NVD website
To clipboard 

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      "cveMetadata": "{\"cveId\": \"CVE-2019-3859\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-12-18T11:43:47.109Z\", \"dateReserved\": \"2019-01-03T00:00:00.000Z\", \"assignerOrgId\": \"53f830b8-0a3f-465b-8143-3b8a9948e749\", \"datePublished\": \"2019-03-20T21:18:13.000Z\", \"assignerShortName\": \"redhat\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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Tags
Taxonomy of the tags.




Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.