Denial of service vulnerabilities in PHP



Risk Low
Patch available YES
Number of vulnerabilities 3
CVE-ID N/A
CWE-ID CWE-119
CWE-264
Exploitation vector Network
Public exploit N/A
Vulnerable software
 PHP
Universal components / Libraries / Scripting languages

Vendor PHP Group

Security Bulletin

This security bulletin contains information about 3 vulnerabilities.

1) Memory corruption

EUVDB-ID: #VU15331

Risk: Low

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: N/A

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 due to boundary error when executing the provided test script, after encountering second file. A remote attacker can trigger memory corruption and cause the application to crash.

Mitigation

The vulnerability has been addressed in the versions 7.1.23, 7.2.11.

Vulnerable software versions

PHP: 7.1.0 - 7.2.10

CPE2.3 External links

https://bugs.php.net/bug.php?id=76901


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.

2) Segmentation fault

EUVDB-ID: #VU15332

Risk: Low

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: N/A

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

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

The weakness exists due to segfault during compile-time evaluation of disabled function in opcache (SCCP). A remote attacker can trigger segmentation fault and cause the application to crash.

Mitigation

Update to version 7.2.11.

Vulnerable software versions

PHP: 7.2.0 - 7.2.10

CPE2.3
External links

https://bugs.php.net/bug.php?id=76796


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.

3) Segmentation fault

EUVDB-ID: #VU15333

Risk: Low

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: N/A

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

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

The weakness exists due to segfault in shutdown function after memory limit error. A remote attacker can trigger segmentation fault and cause the application to crash.

Mitigation

Update to version 7.1.23.

Vulnerable software versions

PHP: 7.1.0 - 7.1.22

CPE2.3
External links

https://bugs.php.net/bug.php?id=76846


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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