Information disclosure in Openafs
CVE-2018-16948
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.
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.020 (79.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 80th percentile — 79.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.020 · newest: 0.020 · change: 0.000
Affected products
- Openafs
- Debian Linux — versions 8.0, 9.0
Weakness classification (CWE)
References
- lists.debian.org/debian-lts-announce/2018/09/msg00024.html (mailing-list, Third Party Advisory)
- www.debian.org/security/2018/dsa-4302 (vendor-advisory, Third Party Advisory)
- openafs.org/pages/security/OPENAFS-SA-2018-002.txt (Vendor Advisory)
Frequently asked questions
- What is CVE-2018-16948?
- CVE-2018-16948 is a high-severity vulnerability in Openafs, classified under Information Disclosure. CVSS score: 7.5/10. Published 2018-09-12.
- How severe is CVE-2018-16948?
- High severity. CVSS v3 base score is 7.5 out of 10.