CVE & CISA-KEV Catalog

CVE-2022-32205

MEDIUMEPSS 98th pctl
4.3
CVSS v3
NVD

Description

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.

How to fix

Remediation Available
curlDebian
Fixed in:7.74.0-1.3+deb11u2CVE-2022-32205
Fixed in:7.84.0-1CVE-2022-32205
Fixed in:7.84.0-1CVE-2022-32205
Fixed in:7.84.0-1CVE-2022-32205
curlUbuntu
Fixed in:7.58.0-2ubuntu3.19USN-5495-1
Fixed in:7.68.0-1ubuntu2.12USN-5495-1
Fixed in:7.81.0-1ubuntu1.3USN-5495-1
libcurl3-gnutlsUbuntu
Fixed in:7.58.0-2ubuntu3.19USN-5495-1
Fixed in:7.68.0-1ubuntu2.12USN-5495-1
Fixed in:7.81.0-1ubuntu1.3USN-5495-1
libcurl3-nssUbuntu
Fixed in:7.58.0-2ubuntu3.19USN-5495-1
Fixed in:7.68.0-1ubuntu2.12USN-5495-1
Fixed in:7.81.0-1ubuntu1.3USN-5495-1
libcurl4Ubuntu
Fixed in:7.58.0-2ubuntu3.19USN-5495-1
Fixed in:7.68.0-1ubuntu2.12USN-5495-1
Fixed in:7.81.0-1ubuntu1.3USN-5495-1
UniversalForwarderWindows application
Affected:8.2.0 8.2.12Fixed in:8.2.12Splunk, Inc.
Affected:9.0.0 9.0.6Fixed in:9.0.6Splunk, Inc.

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Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionRequired
ScopeUnchanged

Impact

ConfidentialityNone
IntegrityNone
AvailabilityLow

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

Exploit Intelligence

26.91%probability of exploitation in 30 days
98thpercentile

Very high risk: more likely to be exploited than 98% of all known CVEs.

References

Related Vulnerabilities

Other CWE-770 (Allocation of Resources Without Limits or Throttling) vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2023-50387High7.5100%-Fix
CVE-2019-11478Medium5.395%-Fix
CVE-2019-11479High7.592%-Fix
CVE-2024-27316High7.591%-Fix
CVE-2022-30522High7.590%-Fix
CVE-2019-9515High7.588%-Fix
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-05-05.