What’s Vulnerable › Vulnerabilities

CVE-2018-16948

• Severity: high (CVSS 7.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.0% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2018-09-12 · updated 2026-06-17
• Weakness: CWE-200

Description

An issue was discovered in OpenAFS before 1.6.23 and 1.8.x before 1.8.2. Several RPC server routines did not fully initialize their output variables before returning, leaking memory contents from both the stack and the heap. Because the OpenAFS cache manager functions as an Rx server for the AFSCB service, clients are also susceptible to information leakage. For example, RXAFSCB_TellMeAboutYourself leaks kernel memory and KAM_ListEntry leaks kaserver memory.

Affected products

• Debian Linux: 8.0, 9.0
• The OpenAFS Foundation OpenAFS: before 1.6.23; from 1.8.0 before 1.8.2 — fixed in 1.6.23, 1.8.2

How to fix

Upgrade to a fixed version: The OpenAFS Foundation OpenAFS 1.6.23, 1.8.2. Check the vendor advisory for mitigations.

References

• http://openafs.org/pages/security/OPENAFS-SA-2018-002.txt
• https://lists.debian.org/debian-lts-announce/2018/09/msg00024.html
• https://www.debian.org/security/2018/dsa-4302
• http://openafs.org/pages/security/OPENAFS-SA-2018-002.txt
• https://lists.debian.org/debian-lts-announce/2018/09/msg00024.html
• https://www.debian.org/security/2018/dsa-4302

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