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Ubuntu: USN-5964-1 (CVE-2023-27534): curl vulnerabilities

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Ubuntu: USN-5964-1 (CVE-2023-27534): curl vulnerabilities

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
03/20/2023
Created
03/29/2023
Added
03/22/2023
Modified
04/10/2023

Description

A path traversal vulnerability exists in curl <8.0.0 SFTP implementation causes the tilde (~) character to be wrongly replaced when used as a prefix in the first path element, in addition to its intended use as the first element to indicate a path relative to the user's home directory. Attackers can exploit this flaw to bypass filtering or execute arbitrary code by crafting a path like /~2/foo while accessing a server with a specific user.

Solution(s)

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

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