github - ghsa-7mv4-9v7r-5gq3

ghsa-7mv4-9v7r-5gq3

Vulnerability from github

Published

2022-05-24 17:14

Modified

2022-05-24 17:14

Details

An issue was discovered in Squid through 4.7. When Squid is parsing ESI, it keeps the ESI elements in ESIContext. ESIContext contains a buffer for holding a stack of ESIElements. When a new ESIElement is parsed, it is added via addStackElement. addStackElement has a check for the number of elements in this buffer, but it's off by 1, leading to a Heap Overflow of 1 element. The overflow is within the same structure so it can't affect adjacent memory blocks, and thus just leads to a crash while processing.

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{
  "affected": [],
  "aliases": [
    "CVE-2019-12521"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-787"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2020-04-15T19:15:00Z",
    "severity": "MODERATE"
  },
  "details": "An issue was discovered in Squid through 4.7. When Squid is parsing ESI, it keeps the ESI elements in ESIContext. ESIContext contains a buffer for holding a stack of ESIElements. When a new ESIElement is parsed, it is added via addStackElement. addStackElement has a check for the number of elements in this buffer, but it\u0027s off by 1, leading to a Heap Overflow of 1 element. The overflow is within the same structure so it can\u0027t affect adjacent memory blocks, and thus just leads to a crash while processing.",
  "id": "GHSA-7mv4-9v7r-5gq3",
  "modified": "2022-05-24T17:14:19Z",
  "published": "2022-05-24T17:14:19Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-12521"
    },
    {
      "type": "WEB",
      "url": "https://gitlab.com/jeriko.one/security/-/blob/master/squid/CVEs/CVE-2019-12521.txt"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2020/07/msg00009.html"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/202005-05"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20210205-0006"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/4356-1"
    },
    {
      "type": "WEB",
      "url": "https://www.debian.org/security/2020/dsa-4682"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00018.html"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2020/04/23/1"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

cve-2019-12521

Vulnerability from cvelistv5

Published

2020-04-15 18:47

Modified

2024-08-04 23:24

Severity ?

Summary

References

▼	URL	Tags
	https://gitlab.com/jeriko.one/security/-/blob/master/squid/CVEs/CVE-2019-12521.txt	x_refsource_MISC
	http://www.openwall.com/lists/oss-security/2020/04/23/1	mailing-list, x_refsource_MLIST
	https://www.debian.org/security/2020/dsa-4682	vendor-advisory, x_refsource_DEBIAN
	http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00018.html	vendor-advisory, x_refsource_SUSE
	https://security.gentoo.org/glsa/202005-05	vendor-advisory, x_refsource_GENTOO
	https://usn.ubuntu.com/4356-1/	vendor-advisory, x_refsource_UBUNTU
	https://lists.debian.org/debian-lts-announce/2020/07/msg00009.html	mailing-list, x_refsource_MLIST
	https://security.netapp.com/advisory/ntap-20210205-0006/	x_refsource_CONFIRM

Impacted products

Vendor

Product

Version

▼

n/a

Version: n/a

Show details on NVD website

JSON

To clipboard

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            "url": "https://gitlab.com/jeriko.one/security/-/blob/master/squid/CVEs/CVE-2019-12521.txt"
          },
          {
            "name": "[oss-security] 20200423 [ADVISORY] SQUID-2019:12 Multiple issues in ESI Response processing",
            "tags": [
              "mailing-list",
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            ],
            "url": "http://www.openwall.com/lists/oss-security/2020/04/23/1"
          },
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            "url": "https://security.netapp.com/advisory/ntap-20210205-0006/"
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      "problemTypes": [
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          "url": "https://lists.debian.org/debian-lts-announce/2020/07/msg00009.html"
        },
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          "url": "https://security.netapp.com/advisory/ntap-20210205-0006/"
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            },
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    "datePublished": "2020-04-15T18:47:43",
    "dateReserved": "2019-06-02T00:00:00",
    "dateUpdated": "2024-08-04T23:24:38.850Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.

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