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Ubuntu: USN-5412-1 (CVE-2022-27780): curl vulnerabilities

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Ubuntu: USN-5412-1 (CVE-2022-27780): curl vulnerabilities

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:P/A:N)
Published
05/11/2022
Created
05/14/2022
Added
05/12/2022
Modified
05/01/2023

Description

The curl URL parser wrongly accepts percent-encoded URL separators like '/'when decoding the host name part of a URL, making it a *different* URL usingthe wrong host name when it is later retrieved.For example, a URL like `http://example.com%2F127.0.0.1/`, would be allowed bythe parser and get transposed into `http://example.com/127.0.0.1/`. This flawcan be used to circumvent filters, checks and more.

Solution(s)

  • ubuntu-upgrade-curl
  • ubuntu-upgrade-libcurl3-gnutls
  • ubuntu-upgrade-libcurl3-nss
  • ubuntu-upgrade-libcurl4

References

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