Security restrictions bypass in gnutls (Alpine package)
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2016-7444 |
| CWE-ID | CWE-20 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
gnutls (Alpine package) Operating systems & Components / Operating system package or component |
| Vendor | Alpine Linux Development Team |
Security Bulletin
This security bulletin contains one low risk vulnerability.
1) Security restrictions bypass
EUVDB-ID: #VU7655
Risk: Low
CVSSv3.1: 6.4 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C]
CVE-ID: CVE-2016-7444
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: No
DescriptionThe vulnerability allows a remote unauthenticated attacker to bypass security restrictions on the target system.
The weakness exists due to insufficient validation of the serial length of an OCSP response by the gnutls_ocsp_resp_check_crt function in the lib/x509/ocsp.c code. A remote attacker can bypass certificate validation and conduct further attacks.
Install update from vendor's website.
Vulnerable software versionsgnutls (Alpine package): 3.3.18-r0
External linkshttp://git.alpinelinux.org/aports/commit/?id=3c67fa3526b7b2bba61227d0fc519ceef3d13009
http://git.alpinelinux.org/aports/commit/?id=f1160ab71f617ea35209d64df0f4aa4d304dcc64
http://git.alpinelinux.org/aports/commit/?id=2715d01533f44ce862bbe92a5dd487a643b98b7d
http://git.alpinelinux.org/aports/commit/?id=0df0c8fd24cdd416fe05c7385125ceaf701e35b8
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.
