Information disclosure in Linux Kernel
CVE-2014-2038
The nfs_can_extend_write function in fs/nfs/write.c in the Linux kernel before 3.13.3 relies on a write delegation to extend a write operation without a certain up-to-date verification, which allows local users to obtain sensitive information from kernel memory in opportunistic circumstances by writing to a file in an NFS filesystem and then reading the same file.
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v2 metric
CVSS v2 base score 2.1 (Low). Vector: AV:L/AC:L/Au:N/C:P/I:N/A:N. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.004 (32.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 33rd percentile — 32.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: -0.000
Affected products
- Linux Kernel
- Canonical Ubuntu Linux — versions 12.04, 13.10
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.ubuntu.com/usn/USN-2137-1 (vendor-advisory, Third Party Advisory)
- www.ubuntu.com/usn/USN-2140-1 (vendor-advisory, Third Party Advisory)
- github.com/torvalds/linux/commit/263b4509ec4d47e0da3e753f85a39ea12d1eff24 (Patch, Third Party Advisory)
- git.kernel.org/
- www.openwall.com/lists/oss-security/2014/02/20/16 (mailing-list, Mailing List, Third Party Advisory)
- www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.13.3 (Release Notes, Vendor Advisory)
- bugzilla.redhat.com/show_bug.cgi (Patch, Third Party Advisory, Issue Tracking)
Frequently asked questions
- What is CVE-2014-2038?
- CVE-2014-2038 is a vulnerability in Linux Kernel, classified under Information Disclosure. Published 2014-02-28.
- Is CVE-2014-2038 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.