github - ghsa-rwf6-27gf-7q62

GHSA-RWF6-27GF-7Q62

Vulnerability from github – Published: 2022-04-23 00:40 – Updated: 2024-04-03 23:06

Details

A heap-based buffer overflow exists in GNU Bash before 4.3 when wide characters, not supported by the current locale set in the LC_CTYPE environment variable, are printed through the echo built-in function. A local attacker, who can provide data to print through the "echo -e" built-in function, may use this flaw to crash a script or execute code with the privileges of the bash process. This occurs because ansicstr() in lib/sh/strtrans.c mishandles u32cconv().

Severity ?

7.8 (High)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2012-6711"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-119"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2019-06-18T18:15:00Z",
    "severity": "HIGH"
  },
  "details": "A heap-based buffer overflow exists in GNU Bash before 4.3 when wide characters, not supported by the current locale set in the LC_CTYPE environment variable, are printed through the echo built-in function. A local attacker, who can provide data to print through the \"echo -e\" built-in function, may use this flaw to crash a script or execute code with the privileges of the bash process. This occurs because ansicstr() in lib/sh/strtrans.c mishandles u32cconv().",
  "id": "GHSA-rwf6-27gf-7q62",
  "modified": "2024-04-03T23:06:35Z",
  "published": "2022-04-23T00:40:06Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2012-6711"
    },
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      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1721071"
    },
    {
      "type": "WEB",
      "url": "https://support.f5.com/csp/article/K05122252"
    },
    {
      "type": "WEB",
      "url": "https://support.f5.com/csp/article/K05122252?utm_source=f5support\u0026amp%3Butm_medium=RSS"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/4180-1"
    },
    {
      "type": "WEB",
      "url": "http://git.savannah.gnu.org/cgit/bash.git/commit/?h=devel\u0026id=863d31ae775d56b785dc5b0105b6d251515d81d5"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/108824"
    }
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  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2012-6711 (GCVE-0-2012-6711)

Vulnerability from cvelistv5 – Published: 2019-06-18 17:34 – Updated: 2024-08-06 21:36

Summary

Severity ?

7 (High)


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

CWE

Assigner

mitre

References

URL

Tags

	https://bugzilla.redhat.com/show_bug.cgi?id=1721071	x_refsource_MISC
	http://git.savannah.gnu.org/cgit/bash.git/commit/…	x_refsource_MISC
	http://www.securityfocus.com/bid/108824	vdb-entryx_refsource_BID
	https://support.f5.com/csp/article/K05122252	x_refsource_CONFIRM
	https://support.f5.com/csp/article/K05122252?utm_…	x_refsource_CONFIRM
	https://usn.ubuntu.com/4180-1/	vendor-advisoryx_refsource_UBUNTU

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JSON

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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-RWF6-27GF-7Q62

CVE-2012-6711 (GCVE-0-2012-6711)

Tags

Sightings

Nomenclature