SUSE Linux update for php53



Published: 2018-03-26
Risk High
Patch available YES
Number of vulnerabilities 6
CVE-ID CVE-2016-10712
CVE-2016-5771
CVE-2016-5773
CVE-2018-5711
CVE-2018-5712
CVE-2018-7584
CWE-ID CWE-20
CWE-416
CWE-835
CWE-79
CWE-121
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
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SUSE Linux
Operating systems & Components / Operating system

Vendor SUSE

Security Bulletin

This security bulletin contains information about 6 vulnerabilities.

1) Improper input validation

EUVDB-ID: #VU10948

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C]

CVE-ID: CVE-2016-10712

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote unauthenticated attacker to obtain potentially sensitive information on the target system.

The weakness exists in the stream_get_meta_data function due to improper input validation. A remote attacker can send a specially crafted file and control metadata.

Mitigation

Update the affected packages.

Vulnerable software versions

SUSE Linux: 11

External links

http://lists.opensuse.org/opensuse-security-announce/2018-03/msg00058.html


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) Use-after-free error

EUVDB-ID: #VU3611

Risk: High

CVSSv3.1: 9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C]

CVE-ID: CVE-2016-5771

CWE-ID: CWE-416 - Use After Free

Exploit availability: Yes

Description

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

The vulnerability exists due to use-after-free in GC algorithm and unserialize. A remote attacker can create a specially crafted zval object and exploit the PHP process by taking over the EIP/RIP.

Successful exploitation of this vulnerability results in complete control over the vulnerable web application and execute arbitrary PHP code on the target system.

Mitigation

Update the affected packages.

Vulnerable software versions

SUSE Linux: 11

External links

http://lists.opensuse.org/opensuse-security-announce/2018-03/msg00058.html


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.

3) Use-after-free error

EUVDB-ID: #VU3613

Risk: High

CVSSv3.1: 9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C]

CVE-ID: CVE-2016-5773

CWE-ID: CWE-416 - Use After Free

Exploit availability: Yes

Description

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

The vulnerability exists due to use-after-free in GC algorithm and unserialize. A remote attacker can create a specially crafted zval object and exploit the PHP process by taking over the EIP/RIP.

Successful exploitation of this vulnerability results in complete control over the vulnerable web application and execute arbitrary PHP code on the target system.

Mitigation

Update the affected packages.

Vulnerable software versions

SUSE Linux: 11

External links

http://lists.opensuse.org/opensuse-security-announce/2018-03/msg00058.html


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.

4) Infinite loop

EUVDB-ID: #VU10390

Risk: Low

CVSSv3.1: 3.5 [CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-5711

CWE-ID: CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')

Exploit availability: No

Description

The disclosed vulnerability allows a local unauthenticated attacker to cause DoS condition.

The vulnerability exists  in PHP GD Graphics Library due to insufficient sanitization of user-supplied data. A local attacker can submit a specially crafted GIF, trigger an infinite loop and cause the service to crash.

Mitigation

Update the affected packages.

Vulnerable software versions

SUSE Linux: 11

External links

http://lists.opensuse.org/opensuse-security-announce/2018-03/msg00058.html


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

5) Reflected cross-site scripting

EUVDB-ID: #VU10389

Risk: Low

CVSSv3.1: 5.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-5712

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Exploit availability: No

Description

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists on the PHAR 404 error page due to insufficient sanitization of user-supplied data. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Mitigation

Update the affected packages.

Vulnerable software versions

SUSE Linux: 11

External links

http://lists.opensuse.org/opensuse-security-announce/2018-03/msg00058.html


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.

6) Stack-based buffer overflow

EUVDB-ID: #VU10800

Risk: Low

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-7584

CWE-ID: CWE-121 - Stack-based buffer overflow

Exploit availability: No

Description

The vulnerability allows a remote attacker to cause DoS condition on the target system.

The weakness exists due to stack-based buffer overflow when handling malicious input. A remote attacker can send specially crafted HTTP response packets, trigger memory corruption and cause the application to crash.

Mitigation

Update the affected packages.

Vulnerable software versions

SUSE Linux: 11

External links

http://lists.opensuse.org/opensuse-security-announce/2018-03/msg00058.html


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.



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