Vulnerability-Lookup

GSD-2021-32765

Vulnerability from gsd - Updated: 2023-12-13 01:23

Details

Hiredis is a minimalistic C client library for the Redis database. In affected versions Hiredis is vulnurable to integer overflow if provided maliciously crafted or corrupted `RESP` `mult-bulk` protocol data. When parsing `multi-bulk` (array-like) replies, hiredis fails to check if `count * sizeof(redisReply*)` can be represented in `SIZE_MAX`. If it can not, and the `calloc()` call doesn't itself make this check, it would result in a short allocation and subsequent buffer overflow. Users of hiredis who are unable to update may set the [maxelements](https://github.com/redis/hiredis#reader-max-array-elements) context option to a value small enough that no overflow is possible.

Aliases

CVE-2021-32765

Aliases

CVE-2021-32765

JSON

To clipboard

{
  "GSD": {
    "alias": "CVE-2021-32765",
    "description": "Hiredis is a minimalistic C client library for the Redis database. In affected versions Hiredis is vulnurable to integer overflow if provided maliciously crafted or corrupted `RESP` `mult-bulk` protocol data. When parsing `multi-bulk` (array-like) replies, hiredis fails to check if `count * sizeof(redisReply*)` can be represented in `SIZE_MAX`. If it can not, and the `calloc()` call doesn\u0027t itself make this check, it would result in a short allocation and subsequent buffer overflow. Users of hiredis who are unable to update may set the [maxelements](https://github.com/redis/hiredis#reader-max-array-elements) context option to a value small enough that no overflow is possible.",
    "id": "GSD-2021-32765",
    "references": [
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      "https://advisories.mageia.org/CVE-2021-32765.html",
      "https://security.archlinux.org/CVE-2021-32765"
    ]
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            "availabilityImpact": "PARTIAL",
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          "impactScore": 6.4,
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        },
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            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
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          "impactScore": 5.9
        }
      },
      "lastModifiedDate": "2022-12-07T01:52Z",
      "publishedDate": "2021-10-04T21:15Z"
    }
  }
}

CVE-2021-32765 (GCVE-0-2021-32765)

Vulnerability from cvelistv5 – Published: 2021-10-04 00:00 – Updated: 2024-08-03 23:33

Title

Integer Overflow to Buffer Overflow in Hiredis

Summary

Severity

8.8 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE

CWE-190 - Integer Overflow or Wraparound
CWE-680 - Integer Overflow to Buffer Overflow

Assigner

GitHub_M CNA under the mitre root

CNA scorecard C 72/100 over 8026 records in the last 180 days details

References

6 references

URL	Tags
https://github.com/redis/hiredis/security/advisor…
https://github.com/redis/hiredis/commit/76a7b1000…
https://wiki.sei.cmu.edu/confluence/display/c/MEM…
https://lists.debian.org/debian-lts-announce/2021…	mailing-list
https://security.netapp.com/advisory/ntap-2021110…
https://security.gentoo.org/glsa/202210-32	vendor-advisory

Impacted products

1 product

Vendor	Product	Version
redis	hiredis	Affected: < 1.0.1

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T23:33:55.893Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
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          {
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            "url": "https://github.com/redis/hiredis/security/advisories/GHSA-hfm9-39pp-55p2"
          },
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            "url": "https://github.com/redis/hiredis/commit/76a7b10005c70babee357a7d0f2becf28ec7ed1e"
          },
          {
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            "url": "https://wiki.sei.cmu.edu/confluence/display/c/MEM07-C.+Ensure+that+the+arguments+to+calloc%28%29%2C+when+multiplied%2C+do+not+wrap"
          },
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            "url": "https://security.gentoo.org/glsa/202210-32"
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        "title": "CVE Program Container"
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    "cna": {
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        {
          "product": "hiredis",
          "vendor": "redis",
          "versions": [
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              "version": "\u003c 1.0.1"
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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

Sightings and recorded dates, grouped by day · UTC

Order JSON

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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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