veracrypt/VeraCrypt VeraCrypt_1.24-Update2

VeraCrypt version 1.24-Update2

on GitHub

Binaries for Windows, Linux and MacOSX are available at Launchpad, Sourceforge and Bitbucket

Changes between 1.24-Hotfix1 and 1.24-Update2 (16 Decembre 2019) :

• All OSs:

  • clear AES key from stack memory when using non-optimized implementation. Doesn't apply to VeraCrypt official build (Reported and fixed by Hanno Böck)
  • Update Jitterentropy RNG Library to version 2.2.0
  • Start following IEEE 1541 agreed naming of bytes (KiB, MiB, GiB, TiB, PiB).
  • Various documentation enhancements.

• Windows:

  • Fix possible local privilege escalation vulnerability during execution of VeraCrypt Expander (CVE-2019-19501)
  • MBR bootloader:
    • workaround for SSD disks that don't allow write operations in BIOS mode with buffers less than 4096 bytes.
    • Don't restore MBR to VeraCrypt value if it is coming from a loader different from us or different from Microsoft one.
  • EFI bootloader:
    • Fix "ActionFailed" not working and add "ActionCancelled" to customize handling of user hitting ESC on password prompt
    • Fix F5 showing previous password after failed authentication attempt. Ensure that even wrong password value are cleared from memory.
  • Fix multi-OS boot compatibility by only setting VeraCrypt as first bootloader of the system if the current first bootloader is Windows one.
  • Add new registry flags for SystemFavoritesService to control updating of EFI BIOS boot menu on shutdown.
  • Allow system encrypted drive to be mounted in WindowsPE even if changing keyboard layout fails (reported and fixed by Sven Strickroth)
  • Enhancements to the mechanism preserving file timestamps, especially for keyfiles.
  • Fix RDRAND instruction not detected on AMD CPUs.
  • Detect cases where RDRAND is flawed (e.g. AMD Ryzen) to avoid using it if enabled by user.
  • Don't write extra 0x00 byte at the end of DcsProp file when modifying it through UI
  • Reduce memory usage of IOCTL_DISK_VERIFY handler used in disk verification by Windows.
  • Add switch /FastCreateFile for VeraCrypt Format.exe to speedup creation of large file container if quick format is selected.
  • Fix the checkbox for skipping verification of Rescue Disk not reflecting the value of /noisocheck switch specified in VeraCrypt Format command line.
  • check "TrueCrypt Mode" in password dialog when mounting a file container with .tc extension
  • Update XML languages files.

• Linux:

  • Fix regression causing admin password to be requested too many times in some cases
  • Fix off by one buffer overflow in function Process::Execute (Reported and fixed by Hanno Böck)
  • Make sure password gets deleted in case of internal error when mounting volume (Reported and fixed by Hanno Böck)
  • Fix passwords using Unicode characters not recognized in text mode.
  • Fix failure to run VeraCrypt binary built for console mode on headless machines.
  • Add switch to force the use of legacy maximum password length (64 UTF8 bytes)
  • Add CLI switch (--use-dummy-sudo-password) to force use of old sudo behavior of sending a dummy password
  • During uninstall, output error message to STDERR instead of STDOUT for better compatibility with package managers.
  • Make sector size mismatch error when mounting disks more verbose.
  • Speedup SHA256 in 64-bit mode by using assembly code.

• MacOSX:

  • Add switch to force the use of legacy maximum password length (64 UTF8 bytes)
  • Fix off by one buffer overflow in function Process::Execute (Reported and fixed by Hanno Böck)
  • Fix passwords using Unicode characters not recognized in text mode.
  • Make sector size mismatch error when mounting disks more verbose.
  • Speedup SHA256 in 64-bit mode by using assembly code.