group.of.nepali.translators team mailing list archive

[Launchpad Bug Tracker <1916050@xxxxxxxxxxxxxxxxxx>]

This bug was fixed in the package apt - 1.6.13

---------------
apt (1.6.13) bionic; urgency=medium

  [ David Kalnischkies ]
  * Fix incorrect base64 encoding due to int promotion (LP: #1916050)
  * Harden test for no new acquires after transaction abort (Closes: #984966)
    (LP: #1918920)

  [ Julian Andres Klode ]
  * Implement update --error-on=any (Closes: #594813) (LP: #1693900)
  * Include all translations when building the cache (LP: #1907850)
  * Add basic support for the Protected field
  * Do not require force-loopbreak on Important packages
    (Closes: #983014) (LP: #1916725)
  * Protect currently running kernel at run-time (LP: #1615381)
  * Make ADDARG{,C}() macros expand to single statements
  * Improve immediate configuration handling (LP: #1871268)
    - Do not immediately configure m-a: same packages in lockstep
    - Ignore failures from immediate configuration. This does not change the
      actual installation ordering - we never passed the return code to the
      caller and installation went underway anyway if it could be ordered at a
      later stage, this just removes spurious after-the-fact errors.
      (Closes: #973305, #188161, #211075, #649588)
  * Default Acquire::AllowReleaseInfoChange::Suite to "true" (Closes: #931566)
    (LP: #1918907)

  [ Balint Reczey ]
  * Set LC_ALL=C.UTF-8 for unattended-upgrades environment when parsing its --help
    (LP: #1806076)

 -- Julian Andres Klode <juliank@xxxxxxxxxx>  Fri, 12 Mar 2021 14:09:15
+0100

** Changed in: apt (Ubuntu Bionic)
       Status: Fix Committed => Fix Released

** Changed in: apt (Ubuntu Focal)
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1916050

Title:
  Invalid base64 for high-bit characters

Status in apt package in Ubuntu:
  Fix Released
Status in apt source package in Xenial:
  Confirmed
Status in apt source package in Bionic:
  Fix Released
Status in apt source package in Focal:
  Fix Released
Status in apt source package in Groovy:
  Fix Released
Status in apt source package in Hirsute:
  Fix Released

Bug description:
  [Impact]
  The Base64Encode function incorrectly encodes using char instead of uint8_t, leading to characters with the high bit set to be encoded wrongly. This function is used for base authentication, and high bits are set for UTF-8 character sequences, so it's likely affecting people with utf-8 user names and passwords and might cause them to be denied access to their https resources (though arguably they'd work around that).

  [Test case]
  A unit test has been added that checks that the encoding is correct.

  [Where problems could occur]
  This only affects the base64 encoding function, which is only used for quoting user names and passwords in basic auth in http, but it's also exposed to library users and like in python-apt, so problems could occur wherever they use that base64 encoding function as well.

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