Multiple vulnerabilities in PHP
Security Bulletin
This security bulletin contains information about 4 vulnerabilities.
1) XXE attack
EUVDB-ID: #VU15775
Risk: Low
CVSSv4.0: 4.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: N/A
CWE-ID:
CWE-611 - Improper Restriction of XML External Entity Reference ('XXE')
Exploit availability: No
DescriptionThe vulnerability allows a remote unauthenticated attacker to conduct XXE-attack.
The vulnerability exists due to entities from the internal dtd are not resolved in element content when using xml_parse_into_struct. A remote attacker can trick the victim into opening an XML file that submits malicious input to gain access to arbitrary data or cause the service to crash.
MitigationThe vulnerability has been fixed in the versions 7.1.24, 7.2.12.
Vulnerable software versionsPHP: 7.1.0 - 7.2.11
CPE2.3 External linkshttps://bugs.php.net/bug.php?id=76948
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: #VU15776
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
DescriptionThe vulnerability allows a remote unauthenticated attacker to cause DoS condition on the target system.
The vulnerability exists due to memory limit error. A remote attacker can trigger segfault in shutdown function and cause the service to crash.
MitigationUpdate to version 7.2.12.
Vulnerable software versionsPHP: 7.2.0 - 7.2.11
CPE2.3https://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.
3) Heap-based buffer overflow
EUVDB-ID: #VU15777
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-122 - Heap-based Buffer Overflow
Exploit availability: No
DescriptionThe vulnerability allows a remote unauthenticated attacker to cause DoS condition on the target system.
The vulnerability exists due to heap-based buffer overflow in zif_sodium_pad. A remote attacker can trigger memory corruption and cause the service to crash.
MitigationUpdate to version 7.2.12.
Vulnerable software versionsPHP: 7.2.0 - 7.2.11
CPE2.3https://bugs.php.net/bug.php?id=77008
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.
4) Heap-based buffer overflow
EUVDB-ID: #VU15778
Risk: Low
CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: N/A
CWE-ID:
CWE-122 - Heap-based Buffer Overflow
Exploit availability: No
DescriptionThe vulnerability allows a remote unauthenticated attacker to cause DoS condition on the target system.
The vulnerability exists due to heap-based buffer overflow in zend_mm. A remote attacker can trigger memory corruption and cause xmlrpc_encode_request() crash.
MitigationUpdate to version 7.2.12.
Vulnerable software versionsPHP: 7.2.0 - 7.2.11
CPE2.3https://bugs.php.net/bug.php?id=75282
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.
