The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learningUpgrade Debian:unstable
curl
to version 7.84.0-1 or higher.
Note: Versions mentioned in the description apply only to the upstream curl
package and not the curl
package as distributed by Debian
.
See How to fix?
for Debian:unstable
relevant fixed versions and status.
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.