CVE-2022-32205

State
Published
Severity
4.3 Medium
Published
Jul 7, 2022
Updated
Oct 14, 2026
Reserved
Jun 1, 2022

Read the record on cve.org

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.

Scores

CVSSScoreVectorSource
3.14.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:LCISA-ADP

Weaknesses

  • CWE-770 Allocation of Resources Without Limits or Throttling (CWE-770)

Affected Products

ProductVersions
https://github.com/curl/curln/a
  • Fixed in 7.84.0Affected

References

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