Is CVE-2022-32205 being actively exploited?

It is not currently in CISA's KEV catalog. Its EPSS exploitation probability is 27%.

What products does CVE-2022-32205 affect?

Tracked products affected include curl. Check the version you run to see whether it is affected.

How do I fix CVE-2022-32205?

Apply the vendor fix in your normal patch cycle. An official patch or advisory is available. Upgrade affected products to a fixed version.

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CVE-2022-32205

Q: What is CVE-2022-32205?

CVE-2022-32205 is a medium-severity software vulnerability (Resource exhaustion) with a CVSS score of 4.3. 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

MEDIUM severity · CVSS 4.3 · Resource exhaustion

4.3CVSS MEDIUM

Summary

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.

Impact & exploitability

Attack vectorNetwork

Attack complexityLow

Privileges requiredNone

User interactionRequired

Confidentiality impactNone

Integrity impactNone

Availability impactLow

Exploit probability (EPSS)27%

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

Affected products we track (1)

curl

Recommendation

Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.

Official patch: https://cert-portal.siemens.com/productcert/pdf/ssa-333517.pdf ↗

CVE-2022-32205

Summary

Impact & exploitability

Affected products we track (1)

Recommendation

Additional information