Key management errors in libxdmcp (Alpine package)
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2017-2625 |
| CWE-ID | CWE-320 |
| Exploitation vector | Local |
| Public exploit | N/A |
| Vulnerable software Subscribe |
libxdmcp (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) Key management errors
EUVDB-ID: #VU32096
Risk: Low
CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2017-2625
CWE-ID:
CWE-320 - Key Management Errors
Exploit availability: No
DescriptionThe vulnerability allows a local authenticated user to gain access to sensitive information.
It was discovered that libXdmcp before 1.1.2 including used weak entropy to generate session keys. On a multi-user system using xdmcp, a local attacker could potentially use information available from the process list to brute force the key, allowing them to hijack other users' sessions.
MitigationInstall update from vendor's website.
Vulnerable software versionslibxdmcp (Alpine package): 1.1.2-r2
External linkshttp://git.alpinelinux.org/aports/commit/?id=27cf05f3f054c20dc23398592e8c2d4feb79e7f2
http://git.alpinelinux.org/aports/commit/?id=7560948637780d243514c54d16631717c9e058ee
http://git.alpinelinux.org/aports/commit/?id=b83414a37ae782cd07ba66c11633c023de41f836
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.
