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…
Does this matter?
Lower severity and a low EPSS score (0.41%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 2.0
- 2.1 LOWAV:L/AC:L/Au:N/C:P/I:N/A:N
- EPSS
- 0.41% probability · 35th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-200
- Affected
- linux/linux kernel · canonical/ubuntu linux
- Source
- secalert@redhat.com
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=263b4509ec4d47e0da3e753f85a39ea12d1eff24
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.13.3Release Notes, Vendor Advisory
- http://www.openwall.com/lists/oss-security/2014/02/20/16Mailing List, Third Party Advisory
- http://www.ubuntu.com/usn/USN-2137-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-2140-1Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1066939Issue Tracking, Patch, Third Party Advisory
- https://github.com/torvalds/linux/commit/263b4509ec4d47e0da3e753f85a39ea12d1eff24Patch, Third Party Advisory
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=263b4509ec4d47e0da3e753f85a39ea12d1eff24
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.13.3Release Notes, Vendor Advisory
- http://www.openwall.com/lists/oss-security/2014/02/20/16Mailing List, Third Party Advisory
- http://www.ubuntu.com/usn/USN-2137-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-2140-1Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1066939Issue Tracking, Patch, Third Party Advisory
- https://github.com/torvalds/linux/commit/263b4509ec4d47e0da3e753f85a39ea12d1eff24Patch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.