CURL-CVE-2022-32205

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Source
https://curl.se/docs/CVE-2022-32205.html
Import Source
https://curl.se/docs/CURL-CVE-2022-32205.json
JSON Data
https://api.osv.dev/v1/vulns/CURL-CVE-2022-32205
Aliases
Published
2022-06-27T08:00:00Z
Modified
2026-05-27T02:29:33.370741Z
Summary
Set-Cookie denial of service
Details

A malicious server can serve excessive amounts of Set-Cookie: headers in a HTTP response to curl and curl stores all of them. A sufficiently large amount of (big) cookies make subsequent HTTP requests to this, or other servers to which the cookies match, create requests that become larger than the threshold that curl uses internally to avoid sending crazy large requests (1048576 bytes) and instead returns an error.

This denial state might remain for as long as the same cookies are kept, match and have not expired. Due to cookie matching rules, a server on foo.example.com can set cookies that also would match for bar.example.com, making it it possible for a "sister server" to effectively cause a denial of service for a sibling site on the same second level domain using this method.

Database specific 
{
    "package": "curl",
    "award": {
        "currency": "USD",
        "amount": "480"
    },
    "issue": "https://hackerone.com/reports/1569946",
    "affects": "both",
    "last_affected": "7.83.1",
    "severity": "Low",
    "CWE": {
        "id": "CWE-770",
        "desc": "Allocation of Resources Without Limits or Throttling"
    },
    "URL": "https://curl.se/docs/CVE-2022-32205.json",
    "www": "https://curl.se/docs/CVE-2022-32205.html"
}
References
Credits
    • Harry Sintonen - FINDER
    • Daniel Stenberg - REMEDIATION_DEVELOPER

Affected packages

Git / github.com/curl/curl.git

Affected ranges

Type
SEMVER
Events
Introduced
7.71.0
Fixed
7.84.0
Type
GIT
Repo
https://github.com/curl/curl.git
Events
Introduced
ed35d6590e72c23c568af1e3b8ac6e4e2d883888
Fixed
48d7064a49148f03942380967da739dcde1cdc24

Affected versions

7.*
7.71.0
7.71.1
7.72.0
7.73.0
7.74.0
7.75.0
7.76.0
7.76.1
7.77.0
7.78.0
7.79.0
7.79.1
7.80.0
7.81.0
7.82.0
7.83.0
7.83.1
Other
curl-7_71_0
curl-7_71_1
curl-7_72_0
curl-7_73_0
curl-7_74_0
curl-7_75_0
curl-7_76_0
curl-7_76_1
curl-7_77_0
curl-7_78_0
curl-7_79_0
curl-7_79_1
curl-7_80_0
curl-7_81_0
curl-7_82_0
curl-7_83_0
curl-7_83_1
tiny-curl-7_72_0

Database specific

source 
"https://curl.se/docs/CURL-CVE-2022-32205.json"
vanir_signatures_modified 
"2026-05-27T02:29:33Z"
vanir_signatures 
[
    {
        "deprecated": false,
        "target": {
            "file": "lib/http.c",
            "function": "Curl_http_cookies"
        },
        "signature_type": "Function",
        "digest": {
            "function_hash": "44856816709060387698857799086001880414",
            "length": 1482.0
        },
        "signature_version": "v1",
        "source": "https://github.com/curl/curl.git/commit/48d7064a49148f03942380967da739dcde1cdc24",
        "id": "CURL-CVE-2022-32205-16284ad6"
    },
    {
        "deprecated": false,
        "target": {
            "file": "lib/urldata.h"
        },
        "signature_type": "Line",
        "digest": {
            "line_hashes": [
                "285788908128754277806203243725509779188",
                "215223981281964683699010843566616901130",
                "337918680823130709335075237609958509333",
                "31091562957172181788836708827238943007"
            ],
            "threshold": 0.9
        },
        "signature_version": "v1",
        "source": "https://github.com/curl/curl.git/commit/48d7064a49148f03942380967da739dcde1cdc24",
        "id": "CURL-CVE-2022-32205-3498864a"
    },
    {
        "deprecated": false,
        "target": {
            "file": "lib/http.c"
        },
        "signature_type": "Line",
        "digest": {
            "line_hashes": [
                "42401565821253743533698856110427635553",
                "289573902139677390556467337569149814996",
                "108766067958629853036051977100944312584",
                "72930070722242242716134039460370112838",
                "115172872356202962755951875388100295409",
                "90128714653745737404734994216528154255",
                "194812740377909909145009966131849467170",
                "27712211292545613830103936157074513221",
                "94908941393509708542915434406659782964",
                "290833222361279288344615079258303183804",
                "163309842069244067829690908496458101330",
                "267195336736504242283452321987766676054",
                "243500615670928317332646905766134524314",
                "67029305311913950002922531596468130157",
                "169999781548479622370195385069732350200",
                "81970080671058689511032354689698511816",
                "44838991163309211340580440824580546770",
                "53774490026418924724469109431687253514",
                "143303264542862435961945377226955029891",
                "98204869489589396828928259163789724049",
                "166657373838101050687841496411781250413",
                "260743206760803509016288653921765511264"
            ],
            "threshold": 0.9
        },
        "signature_version": "v1",
        "source": "https://github.com/curl/curl.git/commit/48d7064a49148f03942380967da739dcde1cdc24",
        "id": "CURL-CVE-2022-32205-4b2f770c"
    },
    {
        "deprecated": false,
        "target": {
            "file": "lib/cookie.c",
            "function": "Curl_cookie_getlist"
        },
        "signature_type": "Function",
        "digest": {
            "function_hash": "30254430020239649490734704415517798863",
            "length": 1216.0
        },
        "signature_version": "v1",
        "source": "https://github.com/curl/curl.git/commit/48d7064a49148f03942380967da739dcde1cdc24",
        "id": "CURL-CVE-2022-32205-654a4dd6"
    },
    {
        "deprecated": false,
        "target": {
            "file": "lib/cookie.c",
            "function": "Curl_cookie_add"
        },
        "signature_type": "Function",
        "digest": {
            "function_hash": "200387196456884772628138535212581116433",
            "length": 10110.0
        },
        "signature_version": "v1",
        "source": "https://github.com/curl/curl.git/commit/48d7064a49148f03942380967da739dcde1cdc24",
        "id": "CURL-CVE-2022-32205-a2655a17"
    },
    {
        "deprecated": false,
        "target": {
            "file": "lib/cookie.h"
        },
        "signature_type": "Line",
        "digest": {
            "line_hashes": [
                "319990965525942506699335375935194533643",
                "257040997033756347215855998668153623646",
                "230817991934740565297086025360547704749",
                "123491371807463895598372670483942760335",
                "226381500543036867719128539403591970796",
                "144459013500567600845170546078205781995",
                "148479872776947907128144642510397511669"
            ],
            "threshold": 0.9
        },
        "signature_version": "v1",
        "source": "https://github.com/curl/curl.git/commit/48d7064a49148f03942380967da739dcde1cdc24",
        "id": "CURL-CVE-2022-32205-beb8d5fa"
    },
    {
        "deprecated": false,
        "target": {
            "file": "lib/cookie.c"
        },
        "signature_type": "Line",
        "digest": {
            "line_hashes": [
                "292154197139258896099492185113494553520",
                "186888826304681870800909907759855374156",
                "37317142846800747730249524252618689897",
                "207363572555643828734100126338124281102",
                "190156279237247962380515597391486567792",
                "82839648143238759749415144811059651342",
                "235346230204437528239191034237756965334",
                "260046648995034047250893719646870128124",
                "184049739219249913186505779661534077664",
                "43207676442614300691537532583089665768",
                "313424783264293840592141801889023429248",
                "68282861202683080037429111660685913740",
                "8977130176485821300641133672000777941",
                "78996891550401605421963815190133678464"
            ],
            "threshold": 0.9
        },
        "signature_version": "v1",
        "source": "https://github.com/curl/curl.git/commit/48d7064a49148f03942380967da739dcde1cdc24",
        "id": "CURL-CVE-2022-32205-e386b3ad"
    }
]