Buffer overflow in Linux Kernel
CVE-2017-7895
The NFSv2 and NFSv3 server implementations in the Linux kernel through 4.10.13 lack certain checks for the end of a buffer, which allows remote attackers to trigger pointer-arithmetic errors or possibly have unspecified other impact via crafted requests, related to fs/nfsd/nfs3xdr.c and fs/nfsd/nfsxdr.c.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.108 (95.7th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 96th percentile — 95.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.108 · newest: 0.108 · change: 0.000
Affected products
- Linux Kernel
- Debian Linux — versions 8.0, 9.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- access.redhat.com/errata/RHSA-2017:2732 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2017:2412 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2017:1798 (vendor-advisory, Third Party Advisory)
- github.com/torvalds/linux/commit/13bf9fbff0e5e099e2b6f003a0ab8ae145436309 (Patch, Third Party Advisory)
- access.redhat.com/errata/RHSA-2017:1723 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2017:1615 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2017:1647 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2017:1766 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2017:1616 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2017:2429 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2017-7895?
- CVE-2017-7895 is a critical-severity vulnerability in Linux Kernel, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 9.8/10. Published 2017-04-28.
- How severe is CVE-2017-7895?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2017-7895 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.