Debian update for php7.0



Published: 2018-07-06
Risk Low
Patch available YES
Number of vulnerabilities 7
CVE-ID CVE-2018-7584
CVE-2018-10545
CVE-2018-10546
CVE-2018-10547
CVE-2018-10548
CVE-2018-10549
CVE-2018-5712
CWE-ID CWE-121
CWE-200
CWE-835
CWE-79
CWE-300
CWE-119
Exploitation vector Network
Public exploit Public exploit code for vulnerability #3 is available.
Public exploit code for vulnerability #6 is available.
Vulnerable software
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Debian Linux
Operating systems & Components / Operating system

Vendor Debian

Security Bulletin

This security bulletin contains information about 7 vulnerabilities.

1) Stack-based buffer overflow

EUVDB-ID: #VU10800

Risk: Low

CVSSv3.1:

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 package to version: 7.0.30-0+deb9u1

Vulnerable software versions

Debian Linux: All versions


CPE2.3 External links

http://www.debian.org/security/2018/dsa-4240

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

2) Security restrictions bypass

EUVDB-ID: #VU11343

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2018-10545

CWE-ID: CWE-200 - Information Exposure

Exploit availability: No

Description

The vulnerability allows a local attacker to bypass security restrictions and obtain potentially sensitive information on the target system.

The weakness exists due to improper access controls. A local attacker can change UID and GID, PHP-FPM sets pool worker processes to be dumpable, attach to the PHP-FPM workers and gain access to any restricted resources that are not supposed to be allowed.

Mitigation

Update the affected package to version: 7.0.30-0+deb9u1

Vulnerable software versions

Debian Linux: All versions


CPE2.3 External links

http://www.debian.org/security/2018/dsa-4240

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

3) Infinite loop

EUVDB-ID: #VU12257

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2018-10546

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

Exploit availability: No

Description

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

The weakness exists due to infinite loop. A remote attacker can use a stream filter with convert.iconv and not enough input bytes, trigger an infinite loop, one CPU Core at 100% and cause the service to crash.

Mitigation

Update the affected package to version: 7.0.30-0+deb9u1

Vulnerable software versions

Debian Linux: All versions


CPE2.3 External links

http://www.debian.org/security/2018/dsa-4240

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

4) Cross-site scripting

EUVDB-ID: #VU12327

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2018-10547

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 in the phar_do_404() and phar_do_403() functions due to insufficient sanitization of user-supplied data processed by the phar_do_404() and phar_do_403() functions, as defined in the ext/phar/phar_object.c source code file. 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.

The vulnerability exists due to an incomplete fix for CVE-2018-5712.

Mitigation

Update the affected package to version: 7.0.30-0+deb9u1

Vulnerable software versions

Debian Linux: All versions


CPE2.3 External links

http://www.debian.org/security/2018/dsa-4240

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

5) Man-in-the-middle attack

EUVDB-ID: #VU12256

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2018-10548

CWE-ID: CWE-300 - Channel Accessible by Non-Endpoint ('Man-in-the-Middle')

Exploit availability: No

Description

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

The weakness exists in the ext/ldap/ldap.c source code file due to improper handling of return values from the ldap_get_dn function. A remote attacker can use man-in-the middle techniques to trigger ldap_get_dn() to return a NULL pointer and cause ldap_get_entries() because add_assoc_string() to crash.

Mitigation

Update the affected package to version: 7.0.30-0+deb9u1

Vulnerable software versions

Debian Linux: All versions


CPE2.3 External links

http://www.debian.org/security/2018/dsa-4240

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

6) Memory corruption

EUVDB-ID: #VU12258

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2018-10549

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

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

The weakness exists in exif_read_data() function due to an out-of-bounds read while processing crafted JPEG data. A remote attacker can supply a specially image file, trigger heap-based buffer overflow in exif_iif_add_value and cause the service to crash.

Mitigation

Update the affected package to version: 7.0.30-0+deb9u1

Vulnerable software versions

Debian Linux: All versions


CPE2.3 External links

http://www.debian.org/security/2018/dsa-4240

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

7) Reflected cross-site scripting

EUVDB-ID: #VU10389

Risk: Low

CVSSv3.1:

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 package to version: 7.0.30-0+deb9u1

Vulnerable software versions

Debian Linux: All versions


CPE2.3 External links

http://www.debian.org/security/2018/dsa-4240

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?



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