cvelist/2021/32xxx/CVE-2021-32765.json

{
    "CVE_data_meta": {
        "ASSIGNER": "security-advisories@github.com",
        "ID": "CVE-2021-32765",
        "STATE": "PUBLIC",
        "TITLE": "Integer Overflow to Buffer Overflow in Hiredis"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "hiredis",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "< 1.0.1"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "redis"
                }
            ]
        }
    },
    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "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."
            }
        ]
    },
    "impact": {
        "cvss": {
            "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"
        }
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-190: Integer Overflow or Wraparound"
                    }
                ]
            },
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-680: Integer Overflow to Buffer Overflow"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "name": "https://github.com/redis/hiredis/security/advisories/GHSA-hfm9-39pp-55p2",
                "refsource": "CONFIRM",
                "url": "https://github.com/redis/hiredis/security/advisories/GHSA-hfm9-39pp-55p2"
            },
            {
                "name": "https://github.com/redis/hiredis/commit/76a7b10005c70babee357a7d0f2becf28ec7ed1e",
                "refsource": "MISC",
                "url": "https://github.com/redis/hiredis/commit/76a7b10005c70babee357a7d0f2becf28ec7ed1e"
            },
            {
                "name": "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",
                "refsource": "MISC",
                "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"
            },
            {
                "refsource": "MLIST",
                "name": "[debian-lts-announce] 20211012 [SECURITY] [DLA 2783-1] hiredis security update",
                "url": "https://lists.debian.org/debian-lts-announce/2021/10/msg00007.html"
            },
            {
                "refsource": "CONFIRM",
                "name": "https://security.netapp.com/advisory/ntap-20211104-0003/",
                "url": "https://security.netapp.com/advisory/ntap-20211104-0003/"
            },
            {
                "refsource": "GENTOO",
                "name": "GLSA-202210-32",
                "url": "https://security.gentoo.org/glsa/202210-32"
            }
        ]
    },
    "source": {
        "advisory": "GHSA-hfm9-39pp-55p2",
        "discovery": "UNKNOWN"
    }
}