CVE-2021-32765
Vulnerability from cvelistv5
Published
2021-10-04 00:00
Modified
2024-08-03 23:33
Severity ?
8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
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.
References
security-advisories@github.comhttps://github.com/redis/hiredis/commit/76a7b10005c70babee357a7d0f2becf28ec7ed1ePatch, Third Party Advisory
security-advisories@github.comhttps://github.com/redis/hiredis/security/advisories/GHSA-hfm9-39pp-55p2Mitigation, Third Party Advisory
security-advisories@github.comhttps://lists.debian.org/debian-lts-announce/2021/10/msg00007.htmlMailing List, Third Party Advisory
security-advisories@github.comhttps://security.gentoo.org/glsa/202210-32Third Party Advisory
security-advisories@github.comhttps://security.netapp.com/advisory/ntap-20211104-0003/Third Party Advisory
security-advisories@github.comhttps://wiki.sei.cmu.edu/confluence/display/c/MEM07-C.+Ensure+that+the+arguments+to+calloc%28%29%2C+when+multiplied%2C+do+not+wrapThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/redis/hiredis/commit/76a7b10005c70babee357a7d0f2becf28ec7ed1ePatch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/redis/hiredis/security/advisories/GHSA-hfm9-39pp-55p2Mitigation, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2021/10/msg00007.htmlMailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/202210-32Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20211104-0003/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://wiki.sei.cmu.edu/confluence/display/c/MEM07-C.+Ensure+that+the+arguments+to+calloc%28%29%2C+when+multiplied%2C+do+not+wrapThird Party Advisory
Impacted products
Vendor Product Version
redis hiredis Version: < 1.0.1
 Create a notification for this product.
Show details on NVD website

To clipboard 

{
   containers: {
      adp: [
         {
            providerMetadata: {
               dateUpdated: "2024-08-03T23:33:55.893Z",
               orgId: "af854a3a-2127-422b-91ae-364da2661108",
               shortName: "CVE",
            },
            references: [
               {
                  tags: [
                     "x_transferred",
                  ],
                  url: "https://github.com/redis/hiredis/security/advisories/GHSA-hfm9-39pp-55p2",
               },
               {
                  tags: [
                     "x_transferred",
                  ],
                  url: "https://github.com/redis/hiredis/commit/76a7b10005c70babee357a7d0f2becf28ec7ed1e",
               },
               {
                  tags: [
                     "x_transferred",
                  ],
                  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",
               },
               {
                  name: "[debian-lts-announce] 20211012 [SECURITY] [DLA 2783-1] hiredis security update",
                  tags: [
                     "mailing-list",
                     "x_transferred",
                  ],
                  url: "https://lists.debian.org/debian-lts-announce/2021/10/msg00007.html",
               },
               {
                  tags: [
                     "x_transferred",
                  ],
                  url: "https://security.netapp.com/advisory/ntap-20211104-0003/",
               },
               {
                  name: "GLSA-202210-32",
                  tags: [
                     "vendor-advisory",
                     "x_transferred",
                  ],
                  url: "https://security.gentoo.org/glsa/202210-32",
               },
            ],
            title: "CVE Program Container",
         },
      ],
      cna: {
         affected: [
            {
               product: "hiredis",
               vendor: "redis",
               versions: [
                  {
                     status: "affected",
                     version: "< 1.0.1",
                  },
               ],
            },
         ],
         descriptions: [
            {
               lang: "en",
               value: "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.",
            },
         ],
         metrics: [
            {
               cvssV3_1: {
                  attackComplexity: "LOW",
                  attackVector: "NETWORK",
                  availabilityImpact: "HIGH",
                  baseScore: 8.8,
                  baseSeverity: "HIGH",
                  confidentialityImpact: "HIGH",
                  integrityImpact: "HIGH",
                  privilegesRequired: "LOW",
                  scope: "UNCHANGED",
                  userInteraction: "NONE",
                  vectorString: "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  version: "3.1",
               },
            },
         ],
         problemTypes: [
            {
               descriptions: [
                  {
                     cweId: "CWE-190",
                     description: "CWE-190: Integer Overflow or Wraparound",
                     lang: "en",
                     type: "CWE",
                  },
               ],
            },
            {
               descriptions: [
                  {
                     cweId: "CWE-680",
                     description: "CWE-680: Integer Overflow to Buffer Overflow",
                     lang: "en",
                     type: "CWE",
                  },
               ],
            },
         ],
         providerMetadata: {
            dateUpdated: "2022-10-31T00:00:00",
            orgId: "a0819718-46f1-4df5-94e2-005712e83aaa",
            shortName: "GitHub_M",
         },
         references: [
            {
               url: "https://github.com/redis/hiredis/security/advisories/GHSA-hfm9-39pp-55p2",
            },
            {
               url: "https://github.com/redis/hiredis/commit/76a7b10005c70babee357a7d0f2becf28ec7ed1e",
            },
            {
               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",
            },
            {
               name: "[debian-lts-announce] 20211012 [SECURITY] [DLA 2783-1] hiredis security update",
               tags: [
                  "mailing-list",
               ],
               url: "https://lists.debian.org/debian-lts-announce/2021/10/msg00007.html",
            },
            {
               url: "https://security.netapp.com/advisory/ntap-20211104-0003/",
            },
            {
               name: "GLSA-202210-32",
               tags: [
                  "vendor-advisory",
               ],
               url: "https://security.gentoo.org/glsa/202210-32",
            },
         ],
         source: {
            advisory: "GHSA-hfm9-39pp-55p2",
            discovery: "UNKNOWN",
         },
         title: "Integer Overflow to Buffer Overflow in Hiredis",
      },
   },
   cveMetadata: {
      assignerOrgId: "a0819718-46f1-4df5-94e2-005712e83aaa",
      assignerShortName: "GitHub_M",
      cveId: "CVE-2021-32765",
      datePublished: "2021-10-04T00:00:00",
      dateReserved: "2021-05-12T00:00:00",
      dateUpdated: "2024-08-03T23:33:55.893Z",
      state: "PUBLISHED",
   },
   dataType: "CVE_RECORD",
   dataVersion: "5.1",
   "vulnerability-lookup:meta": {
      nvd: "{\"cve\":{\"id\":\"CVE-2021-32765\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2021-10-04T21:15:12.527\",\"lastModified\":\"2024-11-21T06:07:41.780\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"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.\"},{\"lang\":\"es\",\"value\":\"Hiredis es una librería cliente minimalista en C para la base de datos Redis. En las versiones afectadas, Hiredis es vulnerable al desbordamiento de enteros si se proporcionan datos del protocolo \\\"RESP\\\" \\\"multi-bulk\\\" maliciosamente diseñados o corruptos. Cuando se analizan las respuestas \\\"multi-bulk\\\" (tipo array), hiredis no comprueba si \\\"count * sizeof(redisReply*)\\\" puede representarse en \\\"SIZE_MAX\\\". Si no puede, y la llamada a \\\"calloc()\\\" no hace por sí misma esta comprobación, se produciría una asignación corta y el consiguiente desbordamiento del búfer. Los usuarios de hiredis que no puedan actualizar pueden establecer la opción de contexto [maxelements](https://github.com/redis/hiredis#reader-max-array-elements) a un valor lo suficientemente pequeño como para que no sea posible el desbordamiento\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":8.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":2.8,\"impactScore\":5.9},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":8.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":2.8,\"impactScore\":5.9}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:L/Au:S/C:P/I:P/A:P\",\"baseScore\":6.5,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"SINGLE\",\"confidentialityImpact\":\"PARTIAL\",\"integrityImpact\":\"PARTIAL\",\"availabilityImpact\":\"PARTIAL\"},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":8.0,\"impactScore\":6.4,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-190\"},{\"lang\":\"en\",\"value\":\"CWE-680\"}]},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-190\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:redis:hiredis:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"1.0.1\",\"matchCriteriaId\":\"EBEAD2D5-FEAD-4157-A3CE-B7E13C4C1AF5\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"DEECE5FC-CACF-4496-A3E7-164736409252\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:netapp:management_services_for_element_software_and_netapp_hci:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"FDAC85F0-93AF-4BE3-AE1A-8ADAF1CDF9AB\"}]}]}],\"references\":[{\"url\":\"https://github.com/redis/hiredis/commit/76a7b10005c70babee357a7d0f2becf28ec7ed1e\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Patch\",\"Third Party Advisory\"]},{\"url\":\"https://github.com/redis/hiredis/security/advisories/GHSA-hfm9-39pp-55p2\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Mitigation\",\"Third Party Advisory\"]},{\"url\":\"https://lists.debian.org/debian-lts-announce/2021/10/msg00007.html\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"https://security.gentoo.org/glsa/202210-32\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://security.netapp.com/advisory/ntap-20211104-0003/\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Third Party Advisory\"]},{\"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\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://github.com/redis/hiredis/commit/76a7b10005c70babee357a7d0f2becf28ec7ed1e\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\",\"Third Party Advisory\"]},{\"url\":\"https://github.com/redis/hiredis/security/advisories/GHSA-hfm9-39pp-55p2\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mitigation\",\"Third Party Advisory\"]},{\"url\":\"https://lists.debian.org/debian-lts-announce/2021/10/msg00007.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"https://security.gentoo.org/glsa/202210-32\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://security.netapp.com/advisory/ntap-20211104-0003/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"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\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]}]}}",
   },
}


Log in or create an account to share your comment.

Security Advisory comment format.

This schema specifies the format of a comment related to a security advisory.

UUIDv4 of the comment
UUIDv4 of the Vulnerability-Lookup instance
When the comment was created originally
When the comment was last updated
Title of the comment
Description of the comment
The identifier of the vulnerability (CVE ID, GHSA-ID, PYSEC ID, etc.).



Tags
Taxonomy of the tags.




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.