Fedora 24 update for php-PHPMailer



| Updated: 2025-04-24
Risk High
Patch available YES
Number of vulnerabilities 3
CVE-ID CVE-2017-5223
CVE-2016-10045
CVE-2016-10033
CWE-ID CWE-200
CWE-94
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Public exploit code for vulnerability #2 is available.
Public exploit code for vulnerability #3 is available.
Vulnerable software
 Fedora
Operating systems & Components / Operating system

php-PHPMailer
Operating systems & Components / Operating system package or component

Vendor Fedoraproject

Security Bulletin

This security bulletin contains information about 3 vulnerabilities.

1) Information disclosure

EUVDB-ID: #VU4756

Risk: Medium

CVSSv4.0: 7.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/U:Green]

CVE-ID: CVE-2017-5223

CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to obtain access to potentially sensitive information.

The vulnerability exists in PHPMailer before 5.2.22 when handling HTML documents using msgHTML() method. A remote attacker can create a specially crafted message, containing relative links to images withing message and attach arbitrary local file to e-mail message.

Successful exploitation of this vulnerability may allow an attacker to send out arbitrary system files as email attachments.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Fedora: 24

php-PHPMailer: before 5.2.22-1.fc24

CPE2.3 External links

https://bodhi.fedoraproject.org/updates/FEDORA-2017-c3dc97e1e1


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.

2) Remote code injection

EUVDB-ID: #VU3119

Risk: High

CVSSv4.0: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Amber]

CVE-ID: CVE-2016-10045

CWE-ID: CWE-94 - Improper Control of Generation of Code ('Code Injection')

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists in PHPMailer due to insufficient sanitization of user-supplied input, when Sender property is not set. A remote attacker can use backslashed double quote character (e.g. \”) to pass additional commands to original mail command and execute them with privileges of the current web server user.

Successful exploitation of the vulnerability may result in system compromise.

Note: this vulnerability exists due to incorrect fix for vulnerability SB2016122601 (CVE-2016-10033)


Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Fedora: 24

php-PHPMailer: before 5.2.22-1.fc24

CPE2.3 External links

https://bodhi.fedoraproject.org/updates/FEDORA-2017-c3dc97e1e1


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, a fully functional exploit for this vulnerability is available.

3) Remote code injection

EUVDB-ID: #VU3118

Risk: High

CVSSv4.0: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Amber]

CVE-ID: CVE-2016-10033

CWE-ID: CWE-94 - Improper Control of Generation of Code ('Code Injection')

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to insufficient sanitization of user-supplied input passed via specially crafted “From” address to mailSend() function. A remote attacker can use backslashed double quote character (e.g. \") to pass additional commands to original mail command and execute them with privileges of the current web server user.

Successful exploitation of the vulnerability may result in system compromise.


Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Fedora: 24

php-PHPMailer: before 5.2.22-1.fc24

CPE2.3 External links

https://bodhi.fedoraproject.org/updates/FEDORA-2017-c3dc97e1e1


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, a fully functional exploit for this vulnerability is available.



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