NULL pointer dereference in slock (Alpine package)



Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2016-6866
CWE-ID CWE-476
Exploitation vector Network
Public exploit N/A
Vulnerable software
 slock (Alpine package)
Operating systems & Components / Operating system package or component

Vendor Alpine Linux Development Team

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) NULL pointer dereference

EUVDB-ID: #VU33599

Risk: Medium

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:Green]

CVE-ID: CVE-2016-6866

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error. A remote attacker can trigger denial of service conditions via vectors involving an invalid password hash, which triggers a NULL pointer dereference and crash.

Mitigation

Install update from vendor's website.

Vulnerable software versions

slock (Alpine package): 1.3-r2 - 1.3-r3

CPE2.3 External links

https://git.alpinelinux.org/aports/commit/?id=3a5787d2e7a58370f0227cfa7a5dd4cdf9640c71
https://git.alpinelinux.org/aports/commit/?id=be37a94bd55747bcd97f496950ca42f597156ab0


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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