CVE-2016-10033

The mailSend function in the isMail transport in PHPMailer before 5.2.18 might allow remote attackers to pass extra parameters to the mail command and consequently execute arbitrary code via a \" (backslash double quote) in a crafted Sender property.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
libphp-phpmailer	22.04 LTS jammy	Not affected
	21.10 impish	Not affected
	21.04 hirsute	Not affected
	20.10 groovy	Not affected
	20.04 LTS focal	Not affected
	19.10 eoan	Not affected
	19.04 disco	Not affected
	18.10 cosmic	Not affected
	18.04 LTS bionic	Not affected
	17.10 artful	Not affected
	17.04 zesty	Not affected
	16.10 yakkety	Ignored end of life
	16.04 LTS xenial	Fixed 5.2.14+dfsg-1ubuntu0.1~esm1 Ubuntu Pro
	14.04 LTS trusty	Not in release
	12.04 LTS precise	Ignored end of life

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Notes

ccdm94

applying the patch to this CVE introduces a new vulnerability, the one related to CVE-2016-10045. Therefore, when patching this CVE, also apply the fix for CVE-2016-10045.

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
libphp-phpmailer	Upstream: 4835657

Severity score breakdown

Parameter	Value
Base score	9.8 · Critical
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

USN-5956-1
PHPMailer vulnerabilities
15 March 2023