CVE-2014-2038
kernel: nfs: data leak during extended writes
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
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.
La función nfs_can_extend_write en fs/nfs/write.c en el kernel de Linux anterior a 3.13.3 se basa en una delegación de escritura para extender una operación de escritura sin cierta verificación actualizada, lo que permite a usuarios locales obtener información sensible de la memoria del kernel en circunstancias oportunistas mediante la escritura a un archivo en un sistema de archivos NFS y luego leyendo el mismo archivo.
An information leak was discovered in the Linux kernel when built with the NetFilter Connection Tracking (NF_CONNTRACK) support for IRC protocol (NF_NAT_IRC). A remote attacker could exploit this flaw to obtain potentially sensitive kernel information when communicating over a client- to-client IRC connection(/dcc) via a NAT-ed network. Matthew Thode reported a denial of service vulnerability in the Linux kernel when SELinux support is enabled. A local user with the CAP_MAC_ADMIN capability (and the SELinux mac_admin permission if running in enforcing mode) could exploit this flaw to cause a denial of service (kernel crash). Various other issues were also addressed.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2014-02-19 CVE Reserved
- 2014-02-28 CVE Published
- 2024-08-06 CVE Updated
- 2025-05-21 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
CAPEC
References (8)
| URL | Tag | Source |
|---|---|---|
| http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=263b4509ec4d47e0da3e753f85a39ea12d1eff24 | X_refsource_confirm | |
| http://www.openwall.com/lists/oss-security/2014/02/20/16 | Mailing List |
|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1066939 | 2014-03-25 | |
| https://github.com/torvalds/linux/commit/263b4509ec4d47e0da3e753f85a39ea12d1eff24 | 2023-02-13 |
| URL | Date | SRC |
|---|---|---|
| http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.13.3 | 2023-02-13 | |
| http://www.ubuntu.com/usn/USN-2137-1 | 2023-02-13 | |
| http://www.ubuntu.com/usn/USN-2140-1 | 2023-02-13 | |
| https://access.redhat.com/security/cve/CVE-2014-2038 | 2014-03-25 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | < 3.13.3 Search vendor "Linux" for product "Linux Kernel" and version " < 3.13.3" | - |
Affected
| ||||||
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 12.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "12.04" | esm |
Affected
| ||||||
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 13.10 Search vendor "Canonical" for product "Ubuntu Linux" and version "13.10" | - |
Affected
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