// For flags

CVE-2016-0774

kernel: pipe buffer state corruption after unsuccessful atomic read from pipe

Severity Score

6.8
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

The (1) pipe_read and (2) pipe_write implementations in fs/pipe.c in a certain Linux kernel backport in the linux package before 3.2.73-2+deb7u3 on Debian wheezy and the kernel package before 3.10.0-229.26.2 on Red Hat Enterprise Linux (RHEL) 7.1 do not properly consider the side effects of failed __copy_to_user_inatomic and __copy_from_user_inatomic calls, which allows local users to cause a denial of service (system crash) or possibly gain privileges via a crafted application, aka an "I/O vector array overrun." NOTE: this vulnerability exists because of an incorrect fix for CVE-2015-1805.

Las implementaciones (1) pipe_read y (2) pipe_write en fs/pipe.c en un determinado backport del kernel de Linux en el paquete linux en versiones anteriores a 3.2.73-2+deb7u3 sobre Debian wheezy y el paquete kernel en versiones anteriores a 3.10.0-229.26.2 sobre Red Hat Enterprise Linux (RHEL) 7.1 no considera correctamente los efectos laterales de llamadas __copy_to_user_inatomic y __copy_from_user_inatomic fallidas, lo que permite a usuarios locales provocar una denegación de servicio (caída de sistema) o posiblemente obtener prvilegios a través de una aplicación manipulada, también conocido como un "I/O vector array overrun". NOTA: esta vulnerabilidad existe debido a una solución incorrecta para CVE-2015-1805.

It was found that the fix for CVE-2015-1805 incorrectly kept buffer offset and buffer length in sync on a failed atomic read, potentially resulting in a pipe buffer state corruption. A local, unprivileged user could use this flaw to crash the system or leak kernel memory to user space.

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
High
Attack Vector
Local
Attack Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
None
Availability
Complete
Attack Vector
Local
Attack Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
None
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2015-12-16 CVE Reserved
  • 2016-02-03 CVE Published
  • 2023-03-08 EPSS Updated
  • 2024-08-05 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-20: Improper Input Validation
CAPEC
References (25)
URL Tag Source
http://source.android.com/security/bulletin/2016-05-01.html X_refsource_confirm
http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html X_refsource_confirm
http://www.securityfocus.com/bid/84126 Vdb Entry
https://security-tracker.debian.org/tracker/CVE-2016-0774 X_refsource_confirm
URL Date SRC
URL Date SRC
URL Date SRC
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00025.html 2016-12-03
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00026.html 2016-12-03
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00027.html 2016-12-03
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00028.html 2016-12-03
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00029.html 2016-12-03
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00030.html 2016-12-03
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00031.html 2016-12-03
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00032.html 2016-12-03
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00033.html 2016-12-03
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00034.html 2016-12-03
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00036.html 2016-12-03
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00037.html 2016-12-03
http://rhn.redhat.com/errata/RHSA-2016-0494.html 2016-12-03
http://rhn.redhat.com/errata/RHSA-2016-0617.html 2016-12-03
http://www.debian.org/security/2016/dsa-3503 2016-12-03
http://www.ubuntu.com/usn/USN-2967-1 2016-12-03
http://www.ubuntu.com/usn/USN-2967-2 2016-12-03
http://www.ubuntu.com/usn/USN-2968-1 2016-12-03
http://www.ubuntu.com/usn/USN-2968-2 2016-12-03
https://bugzilla.redhat.com/show_bug.cgi?id=1303961 2016-04-12
https://access.redhat.com/security/cve/CVE-2016-0774 2016-04-12
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"
--
Affected
Google
Search vendor "Google"
 Android
Search vendor "Google" for product "Android"
 <= 6.0.1
Search vendor "Google" for product "Android" and version " <= 6.0.1"
-
Affected