Vulnerability-Lookup

GHSA-7X29-5Q3F-F4X2

Vulnerability from github – Published: 2022-05-13 01:30 – Updated: 2022-05-13 01:30

Details

In the GNU C Library (aka glibc or libc6) through 2.29, check_dst_limits_calc_pos_1 in posix/regexec.c has Uncontrolled Recursion, as demonstrated by '(\227|)(\1\1|t1|\\2537)+' in grep.

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-2018-20796"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-674"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2019-02-26T02:29:00Z",
    "severity": "HIGH"
  },
  "details": "In the GNU C Library (aka glibc or libc6) through 2.29, check_dst_limits_calc_pos_1 in posix/regexec.c has Uncontrolled Recursion, as demonstrated by \u0027(\\227|)(\\\\1\\\\1|t1|\\\\\\2537)+\u0027 in grep.",
  "id": "GHSA-7x29-5q3f-f4x2",
  "modified": "2022-05-13T01:30:43Z",
  "published": "2022-05-13T01:30:43Z",
  "references": [
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      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-20796"
    },
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      "url": "https://debbugs.gnu.org/cgi/bugreport.cgi?bug=34141"
    },
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      "type": "WEB",
      "url": "https://lists.gnu.org/archive/html/bug-gnulib/2019-01/msg00108.html"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20190315-0002"
    },
    {
      "type": "WEB",
      "url": "https://support.f5.com/csp/article/K26346590?utm_source=f5support\u0026amp;utm_medium=RSS"
    },
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      "url": "http://www.securityfocus.com/bid/107160"
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  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2018-20796 (GCVE-0-2018-20796)

Vulnerability from cvelistv5 – Published: 2019-02-26 02:00 – Updated: 2024-08-05 12:12

Summary

In the GNU C Library (aka glibc or libc6) through 2.29, check_dst_limits_calc_pos_1 in posix/regexec.c has Uncontrolled Recursion, as demonstrated by '(\227|)(\\1\\1|t1|\\\2537)+' in grep.

Severity

No CVSS data available.

CWE

Assigner

mitre CNA under the mitre root

CNA scorecard E 28/100 over 2322 records in the last 180 days details

References

5 references

URL	Tags
https://security.netapp.com/advisory/ntap-2019031…	x_refsource_CONFIRM
https://lists.gnu.org/archive/html/bug-gnulib/201…	x_refsource_MISC
http://www.securityfocus.com/bid/107160	vdb-entryx_refsource_BID
https://debbugs.gnu.org/cgi/bugreport.cgi?bug=34141	x_refsource_MISC
https://support.f5.com/csp/article/K26346590?utm_…	x_refsource_CONFIRM

Date Public

2019-02-25 00:00

Show details on NVD website

JSON

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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.

Vulnerability timeline

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

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