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Amazon Linux AMI: CVE-2018-20483: Security patch for curl (ALAS-2019-1151)

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Amazon Linux AMI: CVE-2018-20483: Security patch for curl (ALAS-2019-1151)

Severity
2
CVSS
(AV:L/AC:L/Au:N/C:P/I:N/A:N)
Published
12/26/2018
Created
03/19/2019
Added
02/08/2019
Modified
05/07/2019

Description

set_file_metadata in xattr.c in GNU Wget before 1.20.1 stores a file's origin URL in the user.xdg.origin.url metadata attribute of the extended attributes of the downloaded file, which allows local users to obtain sensitive information (e.g., credentials contained in the URL) by reading this attribute, as demonstrated by getfattr. This also applies to Referer information in the user.xdg.referrer.url metadata attribute. According to 2016-07-22 in the Wget ChangeLog, user.xdg.origin.url was partially based on the behavior of fwrite_xattr in tool_xattr.c in curl.

Solution(s)

  • amazon-linux-upgrade-curl

References

  • amazon-linux-upgrade-curl

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