Multiple vulnerabilities in Apple macOS
| Risk | High |
| Patch available | YES |
| Number of vulnerabilities | 4 |
| CVE-ID | CVE-2019-8756 CVE-2019-8749 CVE-2019-8592 CVE-2019-8509 |
| CWE-ID | CWE-119 CWE-264 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
macOS Operating systems & Components / Operating system |
| Vendor | Apple Inc. |
Security Bulletin
This security bulletin contains information about 4 vulnerabilities.
1) Buffer overflow
EUVDB-ID: #VU53345
Risk: High
CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2019-8756
CWE-ID:
CWE-119 - Memory corruption
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in libxml2 implementation. A remote attacker can create a specially crafted XML document, trick the victim into opening it, trigger memory corruption and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
MitigationInstall updates from vendor's website.
Vulnerable software versionsmacOS: 10.13 17A365 - 10.14.6 18G103
External linkshttp://support.apple.com/en-us/HT210722
http://support.apple.com/en-us/HT210634
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) Buffer overflow
EUVDB-ID: #VU53344
Risk: High
CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2019-8749
CWE-ID:
CWE-119 - Memory corruption
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in libxml2 implementation. A remote attacker can create a specially crafted XML document, trick the victim into opening it, trigger memory corruption and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
MitigationInstall updates from vendor's website.
Vulnerable software versionsmacOS: 10.13 17A365 - 10.14.6 18G103
External linkshttp://support.apple.com/en-us/HT210722
http://support.apple.com/en-us/HT210634
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) Buffer overflow
EUVDB-ID: #VU53335
Risk: High
CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2019-8592
CWE-ID:
CWE-119 - Memory corruption
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error when processing media files within the CoreAudio subsystem. A remote attacker can create a specially crafted media file, trick the victim into opening it, trigger memory corruption and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
MitigationInstall updates from vendor's website.
Vulnerable software versionsmacOS: 10.13 17A365 - 10.15 19A603
External linkshttp://support.apple.com/en-us/HT210722
http://support.apple.com/en-us/HT210634
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) Security restrictions bypass
EUVDB-ID: #VU53334
Risk: Low
CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2019-8509
CWE-ID:
CWE-264 - Permissions, Privileges, and Access Controls
Exploit availability: No
DescriptionThe vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to application does not properly impose security restrictions in File Quarantine subsystem, which leads to security restrictions bypass and privilege escalation.
MitigationInstall updates from vendor's website.
Vulnerable software versionsmacOS: 10.13 17A365 - 10.15 19A603
External linkshttp://support.apple.com/en-us/HT210722
http://support.apple.com/en-us/HT210634
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.
