CVE & CISA-KEV Catalog

CVE-2017-2625

MEDIUM
6.5
CVSS v3
NVD

Description

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.

CWE-331CWE-320

How to fix

Remediation Available
libxdmcpDebian
Fixed in:1:1.1.2-2CVE-2017-2625
Fixed in:1:1.1.2-2CVE-2017-2625
Fixed in:1:1.1.2-2CVE-2017-2625
Fixed in:1:1.1.2-2CVE-2017-2625
libxdmcpUbuntu
Fixed in:1:1.1.1-1ubuntu0.1~esm1USN-5690-1
Fixed in:1:1.1.2-1.1ubuntu0.1~esm1USN-5690-1
libxdmcp6Ubuntu
Fixed in:1:1.1.1-1ubuntu0.1~esm1USN-5690-1
Fixed in:1:1.1.2-1.1ubuntu0.1~esm1USN-5690-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeChanged

Impact

ConfidentialityHigh
IntegrityNone
AvailabilityNone

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

Exploit Intelligence

0.54%probability of exploitation in 30 days
41stpercentile

Moderate risk: more likely to be exploited than 41% of all known CVEs.

References

Exploit1
Other references1
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.