ghsa-h2hf-mx7w-fhwm
Vulnerability from github
Published
2022-05-24 22:01
Modified
2022-05-24 22:01
Severity ?
8.1 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
Details

In libssh2 v1.9.0 and earlier versions, the SSH_MSG_DISCONNECT logic in packet.c has an integer overflow in a bounds check, enabling an attacker to specify an arbitrary (out-of-bounds) offset for a subsequent memory read. A crafted SSH server may be able to disclose sensitive information or cause a denial of service condition on the client system when a user connects to the server.

Show details on source website

To clipboard 

{
   affected: [],
   aliases: [
      "CVE-2019-17498",
   ],
   database_specific: {
      cwe_ids: [
         "CWE-190",
      ],
      github_reviewed: false,
      github_reviewed_at: null,
      nvd_published_at: "2019-10-21T22:15:00Z",
      severity: "MODERATE",
   },
   details: "In libssh2 v1.9.0 and earlier versions, the SSH_MSG_DISCONNECT logic in packet.c has an integer overflow in a bounds check, enabling an attacker to specify an arbitrary (out-of-bounds) offset for a subsequent memory read. A crafted SSH server may be able to disclose sensitive information or cause a denial of service condition on the client system when a user connects to the server.",
   id: "GHSA-h2hf-mx7w-fhwm",
   modified: "2022-05-24T22:01:01Z",
   published: "2022-05-24T22:01:01Z",
   references: [
      {
         type: "ADVISORY",
         url: "https://nvd.nist.gov/vuln/detail/CVE-2019-17498",
      },
      {
         type: "WEB",
         url: "https://github.com/libssh2/libssh2/pull/402/commits/1c6fa92b77e34d089493fe6d3e2c6c8775858b94",
      },
      {
         type: "WEB",
         url: "https://github.com/libssh2/libssh2/commit/dedcbd106f8e52d5586b0205bc7677e4c9868f9c",
      },
      {
         type: "WEB",
         url: "https://blog.semmle.com/libssh2-integer-overflow-CVE-2019-17498",
      },
      {
         type: "WEB",
         url: "https://github.com/kevinbackhouse/SecurityExploits/tree/8cbdbbe6363510f7d9ceec685373da12e6fc752d/libssh2/out_of_bounds_read_disconnect_CVE-2019-17498",
      },
      {
         type: "WEB",
         url: "https://github.com/libssh2/libssh2/blob/42d37aa63129a1b2644bf6495198923534322d64/src/packet.c#L480",
      },
      {
         type: "WEB",
         url: "https://lists.debian.org/debian-lts-announce/2019/11/msg00010.html",
      },
      {
         type: "WEB",
         url: "https://lists.debian.org/debian-lts-announce/2021/12/msg00013.html",
      },
      {
         type: "WEB",
         url: "https://lists.debian.org/debian-lts-announce/2023/09/msg00006.html",
      },
      {
         type: "WEB",
         url: "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/22H4Q5XMGS3QNSA7OCL3U7UQZ4NXMR5O",
      },
      {
         type: "WEB",
         url: "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TY7EEE34RFKCTXTMBQQWWSLXZWSCXNDB",
      },
      {
         type: "WEB",
         url: "https://security.netapp.com/advisory/ntap-20220909-0004",
      },
      {
         type: "WEB",
         url: "http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00026.html",
      },
      {
         type: "WEB",
         url: "http://packetstormsecurity.com/files/172835/libssh2-1.9.0-Out-Of-Bounds-Read.html",
      },
   ],
   schema_version: "1.4.0",
   severity: [
      {
         score: "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H",
         type: "CVSS_V3",
      },
   ],
}


Log in or create an account to share your comment.

Security Advisory comment format.

This schema specifies the format of a comment related to a security advisory.

UUIDv4 of the comment
UUIDv4 of the Vulnerability-Lookup instance
When the comment was created originally
When the comment was last updated
Title of the comment
Description of the comment
The identifier of the vulnerability (CVE ID, GHSA-ID, PYSEC ID, etc.).



Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.