Vulnerability Report

CVE-2022-32205

Title: Excessive Set-Cookie headers DoS in curl

vb

Proof Of Concept

No public PoC currently indexed for CVE-2022-32205.

CWE Category CWE-770
Published Date Jul 07, 2022
Modified Date May 05, 2025
Exploit Status Not Found
Score 4.3 CVSS v3.1
Exploit Probability (EPSS)
26.91%

Vulnerability Summary

CVE-2022-32205: A malicious server can serve excessive amounts of `Set-Cookie:` headers in a HTTP response to curl and curl < 7.84.0 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 haven't 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.

Impacted Vendors

D
daniel_stenberg 1
H
haxx 1
N
netapp 8
S
splunk 1
S
siemens 6
S
sercomm 1

Reference Links

http://seclists.org/fulldisclosure/2022/Oct/28 http://seclists.org/fulldisclosure/2022/Oct/41 https://cert-portal.siemens.com/productcert/pdf/ssa-333517.pdf https://hackerone.com/reports/1569946 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BEV6BR4MTI3CEWK2YU2HQZUW5FAS3FEY/ https://security.gentoo.org/glsa/202212-01 https://security.netapp.com/advisory/ntap-20220915-0003/ https://support.apple.com/kb/HT213488 https://www.debian.org/security/2022/dsa-5197 http://seclists.org/fulldisclosure/2022/Oct/28 http://seclists.org/fulldisclosure/2022/Oct/41 https://cert-portal.siemens.com/productcert/pdf/ssa-333517.pdf https://hackerone.com/reports/1569946 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BEV6BR4MTI3CEWK2YU2HQZUW5FAS3FEY/ https://security.gentoo.org/glsa/202212-01 https://security.netapp.com/advisory/ntap-20220915-0003/ https://support.apple.com/kb/HT213488 https://www.debian.org/security/2022/dsa-5197
CVSS v3.1
Source Entity [email protected]
Severity MEDIUM
4.3
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
REQUIRED
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
CVSS v3.1
Source Entity 134c704f-9b21-4f2e-91b3-4a467353bcc0
Severity MEDIUM
4.3
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
REQUIRED
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
CVSS v2.0
Source Entity [email protected]
Severity MEDIUM
4.3
Access Vector
N/A
Authentication
N/A
RAW VECTOR AV:N/AC:M/Au:N/C:N/I:N/A:P

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2022-32205 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector NETWORK
Complexity LOW
Privileges N/A
Interaction REQUIRED
CVSS Vector String CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

Affected Stack

No specific products linked.