PT-2022-21151 · Curl+5 · Curl+5
Nyymi
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Published
2022-06-27
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Updated
2026-05-18
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CVE-2022-32205
CVSS v3.1
4.3
Medium
| Vector | AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L |
Name of the Vulnerable Software and Affected Versions
curl versions prior to 7.84.0
Description
A malicious server can serve excessive amounts of
Set-Cookie: headers in a HTTP response to curl. This can cause subsequent HTTP requests to become larger than the internal threshold of 1048576 bytes, resulting in an error. The denial state might remain for as long as the same cookies are kept and haven't expired. Due to cookie matching rules, a server can set cookies that also match for other servers on the same second level domain, making it possible for a "sister server" to effectively cause a denial of service for a sibling site.Recommendations
For versions prior to 7.84.0, update to curl version 7.84.0 to resolve the issue. As a temporary workaround, consider restricting the use of the
Set-Cookie: header or clearing excessive cookies to minimize the risk of exploitation.Exploit
Fix
DoS
Allocation of Resources Without Limits
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Weakness Enumeration
Related Identifiers
Affected Products
Alt Linux
Linuxmint
Apple Macos
Suse
Ubuntu
Curl