github - ghsa-6629-rcxv-r9v7

GHSA-6629-RCXV-R9V7

Vulnerability from github – Published: 2022-05-14 03:54 – Updated: 2022-05-14 03:54

Details

All versions of Quagga, 0.93 through 1.1.0, are vulnerable to an unbounded memory allocation in the telnet 'vty' CLI, leading to a Denial-of-Service of Quagga daemons, or even the entire host. When Quagga daemons are configured with their telnet CLI enabled, anyone who can connect to the TCP ports can trigger this vulnerability, prior to authentication. Most distributions restrict the Quagga telnet interface to local access only by default. The Quagga telnet interface 'vty' input buffer grows automatically, without bound, so long as a newline is not entered. This allows an attacker to cause the Quagga daemon to allocate unbounded memory by sending very long strings without a newline. Eventually the daemon is terminated by the system, or the system itself runs out of memory. This is fixed in Quagga 1.1.1 and Free Range Routing (FRR) Protocol Suite 2017-01-10.

Severity ?

7.5 (High)


                  
                    CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2017-5495"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-119"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2017-01-24T07:59:00Z",
    "severity": "HIGH"
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  "details": "All versions of Quagga, 0.93 through 1.1.0, are vulnerable to an unbounded memory allocation in the telnet \u0027vty\u0027 CLI, leading to a Denial-of-Service of Quagga daemons, or even the entire host. When Quagga daemons are configured with their telnet CLI enabled, anyone who can connect to the TCP ports can trigger this vulnerability, prior to authentication. Most distributions restrict the Quagga telnet interface to local access only by default. The Quagga telnet interface \u0027vty\u0027 input buffer grows automatically, without bound, so long as a newline is not entered. This allows an attacker to cause the Quagga daemon to allocate unbounded memory by sending very long strings without a newline. Eventually the daemon is terminated by the system, or the system itself runs out of memory. This is fixed in Quagga 1.1.1 and Free Range Routing (FRR) Protocol Suite 2017-01-10.",
  "id": "GHSA-6629-rcxv-r9v7",
  "modified": "2022-05-14T03:54:01Z",
  "published": "2022-05-14T03:54:01Z",
  "references": [
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      "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-5495"
    },
    {
      "type": "WEB",
      "url": "https://github.com/freerangerouting/frr/pull/63"
    },
    {
      "type": "WEB",
      "url": "https://lists.quagga.net/pipermail/quagga-dev/2017-January/016586.html"
    },
    {
      "type": "WEB",
      "url": "http://rhn.redhat.com/errata/RHSA-2017-0794.html"
    },
    {
      "type": "WEB",
      "url": "http://savannah.nongnu.org/forum/forum.php?forum_id=8783"
    },
    {
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      "url": "http://www.securityfocus.com/bid/95745"
    },
    {
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  "severity": [
    {
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      "type": "CVSS_V3"
    }
  ]
}

CVE-2017-5495 (GCVE-0-2017-5495)

Vulnerability from cvelistv5 – Published: 2017-01-24 07:40 – Updated: 2024-08-05 15:04

Summary

Severity ?

No CVSS data available.

CWE

Assigner

mitre

References

URL

Tags

	http://rhn.redhat.com/errata/RHSA-2017-0794.html	vendor-advisoryx_refsource_REDHAT
	http://savannah.nongnu.org/forum/forum.php?forum_…	x_refsource_CONFIRM
	https://github.com/freerangerouting/frr/pull/63	x_refsource_CONFIRM
	http://www.securitytracker.com/id/1037688	vdb-entryx_refsource_SECTRACK
	https://lists.quagga.net/pipermail/quagga-dev/201…	x_refsource_CONFIRM
	http://www.securityfocus.com/bid/95745	vdb-entryx_refsource_BID

Show details on NVD website

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Sightings

Author	Source	Type	Date

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.

Action not permitted

GHSA-6629-RCXV-R9V7

CVE-2017-5495 (GCVE-0-2017-5495)

Tags

Sightings

Nomenclature