[Security] Bump phpmailer/phpmailer from 6.0.7 to 6.5.0

[dependabot-preview[bot]]

Bumps phpmailer/phpmailer from 6.0.7 to 6.5.0. This update includes security fixes.

Vulnerabilities fixed

Sourced from The PHP Security Advisories Database.

Untrusted code may be run from an overridden address validator

Affected versions: <6.5.0

Sourced from The PHP Security Advisories Database.

RCE affecting Windows hosts via UNC paths to translation files

Affected versions: <6.5.0

Sourced from The GitHub Security Advisory Database.

Insufficient output escaping of attachment names in PHPMailer

Impact

CWE-116: Incorrect output escaping.

An attachment added like this (note the double quote within the attachment name, which is entirely valid):

$mail->addAttachment('/tmp/attachment.tmp', 'filename.html";.jpg');

Will result in a message containing these headers:

Content-Type: application/octet-stream; name="filename.html";.jpg"
Content-Disposition: attachment; filename="filename.html";.jpg"

The attachment will be named filename.html, and the trailing ";.jpg" will be ignored. Mail filters that reject .html attachments but permit .jpg attachments may be fooled by this.

Note that the MIME type itself is obtained automatically from the source filename (in this case attachment.tmp, which maps to a generic application/octet-stream type), and not the name given to the attachment (though these are the same if a separate name is not provided), though it can be set explicitly in other parameters to attachment methods.

Patches

Patched in PHPMailer 6.1.6 by escaping double quotes within the name using a backslash, as per RFC822 section 3.4.1, resulting in correctly escaped headers like this:

Content-Type: application/octet-stream; name="filename.html\";.jpg"

... (truncated)

Affected versions: < 6.1.6

Release notes

Sourced from phpmailer/phpmailer's releases.

PHPMailer 6.5.0

This is a security release.

• SECURITY Fixes CVE-2021-34551, a complex RCE affecting Windows hosts. See https://github.com/PHPMailer/PHPMailer/blob/HEAD/SECURITY.md for details.
• The fix for this issue changes the way that language files are loaded. While they remain in the same PHP-like format, they are processed as plain text, and any code in them will not be run, including operations such as concatenation using the . operator.
• Deprecation The current translation file format using PHP arrays is now deprecated; the next major version will introduce a new format.
• SECURITY Fixes CVE-2021-3603 that may permit untrusted code to be run from an address validator. See https://github.com/PHPMailer/PHPMailer/blob/HEAD/SECURITY.md for details.
• The fix for this issue includes a minor BC break: callables injected into validateAddress, or indirectly through the $validator class property, may no longer be simple strings. If you want to inject your own validator, provide a closure instead of a function name.
• Haraka message ID strings are now recognised

Thanks to Vikrant Singh Chauhan, listensec.com, and the WordPress security team for reporting and assistance with this release.

PHPMailer 6.4.1

This is a security release.

• SECURITY Fixes CVE-2020-36326, a regression of CVE-2018-19296 object injection introduced in 6.1.8, see SECURITY.md for details
• Reject more file paths that look like URLs, matching RFC3986 spec, blocking URLS using schemes such as ssh2
• Ensure method signature consistency in doCallback calls
• Ukrainian language update
• Add composer scripts for checking coding standards and running tests

Thanks to Fariskhi Vidyan for the report and assistance, and Tidelift for support.

PHPMailer 6.4.0

This is a maintenance release. The changes introduced in 6.3.0 for setting an envelope sender automatically when using mail() caused problems, especially in WordPress, so this change has been reverted. It gets a minor version bump as it's a change in behaviour, but only back to what 6.2.0 did. See #2298 for more info.

Other changes:

• Check for the mbstring extension before decoding addresss in parseAddress, so it won't fail if you don't have it installed
• Add Serbian Latin translation (sr_latn)
• Enrol PHPMailer in Tidelift, because supporting open-source is important!

PHPMailer 6.3.0

This is a maintenance release.

• Handle early connection errors such as 421 during connection and EHLO states
• Switch to Github Actions for CI
• Generate debug output for mail(), sendmail, and qmail transports. Enable using the same mechanism as for SMTP: set SMTPDebug > 0
• Make the mail() and sendmail transports set the envelope sender the same way as SMTP does, i.e. use whatever From is set to, only falling back to the sendmail_from php.ini setting if From is unset. This avoids errors from the mail() function if Sender is not set explicitly and php.ini is not configured. This is a minor functionality change, so bumps the minor version number.
• Extend parseAddresses to decode encoded names, improve tests

PHPMailer 6.2.0

This is a maintenance release. With this release, PHPMailer gains official PHP 8 compatibility; earlier versions worked in PHP 8 pre-releases, but the test suite did not. The considerable rework this required (which also restored tests running on older PHP versions) was done by @​jrfnl – thank you very much!

• PHP 8.0 compatibility
• Switch from PHP CS Fixer to PHP CodeSniffer for coding standards
• Create class constants for the debug levels in the POP3 class
• Improve French, Slovenian, and Ukrainian translations
• Improve file upload examples so file extensions are retained
• Resolve PHP 8 line break issues due to a very old PHP bug being fixed

... (truncated)

Changelog

Sourced from phpmailer/phpmailer's changelog.

Version 6.5.0 (June 16th, 2021)

• SECURITY Fixes CVE-2021-34551, a complex RCE affecting Windows hosts. See https://github.com/PHPMailer/PHPMailer/blob/master/SECURITY.md for details.
• The fix for this issue changes the way that language files are loaded. While they remain in the same PHP-like format, they are processed as plain text, and any code in them will not be run, including operations such as concatenation using the . operator.
• Deprecation The current translation file format using PHP arrays is now deprecated; the next major version will introduce a new format.
• SECURITY Fixes CVE-2021-3603 that may permit untrusted code to be run from an address validator. See https://github.com/PHPMailer/PHPMailer/blob/master/SECURITY.md for details.
• The fix for this issue includes a minor BC break: callables injected into validateAddress, or indirectly through the $validator class property, may no longer be simple strings. If you want to inject your own validator, provide a closure instead of a function name.
• Haraka message ID strings are now recognised

Version 6.4.1 (April 29th, 2021)

• SECURITY Fixes CVE-2020-36326, a regression of CVE-2018-19296 object injection introduced in 6.1.8, see SECURITY.md for details
• Reject more file paths that look like URLs, matching RFC3986 spec, blocking URLS using schemes such as ssh2
• Ensure method signature consistency in doCallback calls
• Ukrainian language update
• Add composer scripts for checking coding standards and running tests

Version 6.4.0 (March 31st, 2021)

• Revert change that made the mail() and sendmail transports set the envelope sender if one isn't explicitly provided, as it causes problems described in PHPMailer/PHPMailer#2298
• Check for mbstring extension before decoding addresss in parseAddress
• Add Serbian Latin translation (sr_latn)
• Enrol PHPMailer in Tidelift

Version 6.3.0 (February 19th, 2021)

• Handle early connection errors such as 421 during connection and EHLO states
• Switch to Github Actions for CI
• Generate debug output for mail(), sendmail, and qmail transports. Enable using the same mechanism as for SMTP: set SMTPDebug > 0
• Make the mail() and sendmail transports set the envelope sender the same way as SMTP does, i.e. use whatever From is set to, only falling back to the sendmail_from php.ini setting if From is unset. This avoids errors from the mail() function if Sender is not set explicitly and php.ini is not configured. This is a minor functionality change, so bumps the minor version number.
• Extend parseAddresses to decode encoded names, improve tests

Version 6.2.0

• PHP 8.0 compatibility, many thanks to @​jrf_nl!
• Switch from PHP CS Fixer to PHP CodeSniffer for coding standards
• Create class constants for the debug levels in the POP3 class
• Improve French, Slovenian, and Ukrainian translations
• Improve file upload examples so file extensions are retained
• Resolve PHP 8 line break issues due to a very old PHP bug being fixed
• Avoid warnings when using old openssl functions
• Improve Travis-CI build configuration

Version 6.1.8 (October 9th, 2020)

• Mark ext-hash as required in composer.json. This has long been required, but now it will cause an error at install time rather than runtime, making it easier to diagnose
• Make file upload examples safer
• Update links to SMTP testing servers
• Avoid errors when set_time_limit is disabled (you need better hosting!)
• Allow overriding auth settings for local tests; makes it easy to run tests using HELO
• Recover gracefully from errors during keepalive sessions
• Add AVIF MIME type mapping
• Prevent duplicate To headers in BCC-only messages when using mail()
• Avoid file function problems when attaching files from Windows UNC paths
• Improve German, Bahasa Indonesian, Filipino translations
• Add Javascript-based example

... (truncated)

Commits

• a5b5c43 Changelog
• e121da3 Merge branch 'master' of https://github.com/PHPMailer/PHPMailer
• 74e512a Security update
• acd264b Merge branch 'CVE-2021-34551'
• 0063f83 Changelog
• 707205f Changelog
• 1047838 Changelog
• c2f191b Changelog
• 45f3c18 Deny string-based callables altogether
• 6334bab CVE docs
• Additional commits viewable in compare view

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[RussH]

@dependabot rebase

[RussH]

applied manually. closing.