Fixes CVE-2020-7212 (1.25.2 - 1.25.7)
The _encode_invalid_chars function does not remove duplicate percent
encodings in the _percent_encodings array, which combined with the
normalization step could take O(N^2) time to compute for a URL of
length N. This results in a marginally higher CPU consumption
compared to the potential linear time achieved by deduplicating
the _percent_encodings array.
CC: Peter Korsgaard <peter@korsgaard.com>
Signed-off-by: Matthew Weber <matthew.weber@rockwellcollins.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
(cherry picked from commit fc57db8401)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Fixes the following security issue:
- CVE-2019-11324: The urllib3 library before 1.24.2 for Python mishandles
certain cases where the desired set of CA certificates is different from
the OS store of CA certificates, which results in SSL connections
succeeding in situations where a verification failure is the correct
outcome. This is related to use of the ssl_context, ca_certs, or
ca_certs_dir argument.
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
