[security] chore(deps-dev): bump tar from 5.0.5 to 6.1.2

[dependabot-preview]

Bumps tar from 5.0.5 to 6.1.2.

Changelog

Sourced from tar's changelog.

Changelog

6.0

• Drop support for node 6 and 8
• fix symlinks and hardlinks on windows being packed with \-style path targets

5.0

• Address unpack race conditions using path reservations
• Change large-numbers errors from TypeError to Error
• Add TAR_* error codes
• Raise TAR_BAD_ARCHIVE warning/error when there are no valid entries found in an archive
• do not treat ignored entries as an invalid archive
• drop support for node v4
• unpack: conditionally use a file mapping to write files on Windows
• Set more portable 'mode' value in portable mode
• Set portable gzip option in portable mode

4.4

• Add 'mtime' option to tar creation to force mtime
• unpack: only reuse file fs entries if nlink = 1
• unpack: rename before unlinking files on Windows
• Fix encoding/decoding of base-256 numbers
• Use stat instead of lstat when checking CWD
• Always provide a callback to fs.close()

4.3

• Add 'transform' unpack option

4.2

• Fail when zlib fails

4.1

• Add noMtime flag for tar creation

4.0

• unpack: raise error if cwd is missing or not a dir
• pack: don't drop dots from dotfiles when prefixing

3.1

• Support @file.tar as an entry argument to copy entries from one tar

... (truncated)

Commits

• 3f7b200 6.1.2
• 9dbdeb6 Remove paths from dirCache when no longer dirs
• 1e33534 6.1.1
• 1f036ca fix: strip absolute paths more comprehensively
• 1b94260 tap@15
• 259e649 6.1.0
• 2d83d5b Add the noChmod option
• 73ec0f7 Skip known-bad test on old Node.js versions
• bfa1f24 ci: turn off windows tests for now
• ad43c86 always use LF line endings for test fixtures
• Additional commits viewable in compare view

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[dependabot-preview]

We've just been alerted that this update fixes a security vulnerability:

Sourced from The GitHub Security Advisory Database.

Arbitrary File Creation/Overwrite via insufficient symlink protection due to directory cache poisoning

Impact

Arbitrary File Creation, Arbitrary File Overwrite, Arbitrary Code Execution

node-tar aims to guarantee that any file whose location would be modified by a symbolic link is not extracted. This is, in part, achieved by ensuring that extracted directories are not symlinks. Additionally, in order to prevent unnecessary stat calls to determine whether a given path is a directory, paths are cached when directories are created.

This logic was insufficient when extracting tar files that contained both a directory and a symlink with the same name as the directory. This order of operations resulted in the directory being created and added to the node-tar directory cache. When a directory is present in the directory cache, subsequent calls to mkdir for that directory are skipped. However, this is also where node-tar checks for symlinks occur.

By first creating a directory, and then replacing that directory with a symlink, it was thus possible to bypass node-tar symlink checks on directories, essentially allowing an untrusted tar file to symlink into an arbitrary location and subsequently extracting arbitrary files into that location, thus allowing arbitrary file creation and overwrite.

This issue was addressed in releases 3.2.3, 4.4.15, 5.0.7 and 6.1.2.

Patches

3.2.3 || 4.4.15 || 5.0.7 || 6.1.2

Workarounds

Users may work around this vulnerability without upgrading by creating a custom filter method which prevents the extraction of symbolic links.

... (truncated)

Affected versions: [">= 5.0.0 < 5.0.7"]