Risk | High |
Patch available | YES |
Number of vulnerabilities | 2 |
CVE-ID | CVE-2020-7455 CVE-2020-7454 |
CWE-ID | CWE-125 CWE-787 |
Exploitation vector | Network |
Public exploit | N/A |
Vulnerable software Subscribe |
FreeBSD Operating systems & Components / Operating system |
Vendor | FreeBSD Foundation |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
EUVDB-ID: #VU27860
Risk: Medium
CVSSv3.1: 7.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-7455
CWE-ID:
CWE-125 - Out-of-bounds read
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition within libalias(3) library when calculating length in FTP packets. A remote attacker can send specially crafted FTP packet to the system, trigger an out-pf-bounds read and read contents of kernel or natd process memory on the system.
Install updates from vendor's website.
Vulnerable software versionsFreeBSD: 11.0 - 12.1
External linkshttp://www.freebsd.org/security/advisories/FreeBSD-SA-20:13.libalias.asc
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.
EUVDB-ID: #VU27859
Risk: High
CVSSv3.1: 8.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-7454
CWE-ID:
CWE-787 - Out-of-bounds write
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a execute arbitrary code on the target system.
The vulnerability exists due to insufficient validation of packet length in libalias(3) library when processing network packets. A remote attacker can send specially crafted packet to the system, trigger our-of-bound read or write error and execute arbitrary code on the target system.
Successful exploitation of vulnerability requires that system is configured to use NAT with ipwf(4).
Install updates from vendor's website.
Vulnerable software versionsFreeBSD: 11.0 - 12.1
External linkshttp://www.freebsd.org/security/advisories/FreeBSD-SA-20:12.libalias.asc
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.