CVE-2016-5195 : Detail

CVE-2016-5195

7
/
Tinggi
93.93%V4
2016-11-10
21h00 +00:00
Local
2025-11-04
16h09 +00:00
CVE.org
NVD
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Kelola notifikasi

Deskripsi CVE

Race condition in mm/gup.c in the Linux kernel 2.x through 4.x before 4.8.3 allows local users to gain privileges by leveraging incorrect handling of a copy-on-write (COW) feature to write to a read-only memory mapping, as exploited in the wild in October 2016, aka "Dirty COW."

Informasi CVE

Kelemahan Terkait

CWE-ID Nama Kelemahan Sumber
CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization
The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.

Metrik

Metrik Skor Tingkat keparahan CVSS Vektor Sumber
V3.1 7 HIGH CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Base: Exploitabilty Metrics

The Exploitability metrics reflect the characteristics of the thing that is vulnerable, which we refer to formally as the vulnerable component.

Attack Vector

This metric reflects the context by which vulnerability exploitation is possible.

Local

The vulnerable component is not bound to the network stack and the attacker’s path is via read/write/execute capabilities.

Attack Complexity

This metric describes the conditions beyond the attacker’s control that must exist in order to exploit the vulnerability.

High

successful attack depends on conditions beyond the attacker's control. That is, a successful attack cannot be accomplished at will, but requires the attacker to invest in some measurable amount of effort in preparation or execution against the vulnerable component before a successful attack can be expected.

Privileges Required

This metric describes the level of privileges an attacker must possess before successfully exploiting the vulnerability.

Low

The attacker requires privileges that provide basic user capabilities that could normally affect only settings and files owned by a user. Alternatively, an attacker with Low privileges has the ability to access only non-sensitive resources.

User Interaction

This metric captures the requirement for a human user, other than the attacker, to participate in the successful compromise of the vulnerable component.

None

The vulnerable system can be exploited without interaction from any user.

Base: Scope Metrics

The Scope metric captures whether a vulnerability in one vulnerable component impacts resources in components beyond its security scope.

Scope

Formally, a security authority is a mechanism (e.g., an application, an operating system, firmware, a sandbox environment) that defines and enforces access control in terms of how certain subjects/actors (e.g., human users, processes) can access certain restricted objects/resources (e.g., files, CPU, memory) in a controlled manner. All the subjects and objects under the jurisdiction of a single security authority are considered to be under one security scope. If a vulnerability in a vulnerable component can affect a component which is in a different security scope than the vulnerable component, a Scope change occurs. Intuitively, whenever the impact of a vulnerability breaches a security/trust boundary and impacts components outside the security scope in which vulnerable component resides, a Scope change occurs.

Unchanged

An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.

Base: Impact Metrics

The Impact metrics capture the effects of a successfully exploited vulnerability on the component that suffers the worst outcome that is most directly and predictably associated with the attack. Analysts should constrain impacts to a reasonable, final outcome which they are confident an attacker is able to achieve.

Confidentiality Impact

This metric measures the impact to the confidentiality of the information resources managed by a software component due to a successfully exploited vulnerability.

High

There is a total loss of confidentiality, resulting in all resources within the impacted component being divulged to the attacker. Alternatively, access to only some restricted information is obtained, but the disclosed information presents a direct, serious impact. For example, an attacker steals the administrator's password, or private encryption keys of a web server.

Integrity Impact

This metric measures the impact to integrity of a successfully exploited vulnerability. Integrity refers to the trustworthiness and veracity of information.

High

There is a total loss of integrity, or a complete loss of protection. For example, the attacker is able to modify any/all files protected by the impacted component. Alternatively, only some files can be modified, but malicious modification would present a direct, serious consequence to the impacted component.

Availability Impact

This metric measures the impact to the availability of the impacted component resulting from a successfully exploited vulnerability.

High

There is a total loss of availability, resulting in the attacker being able to fully deny access to resources in the impacted component; this loss is either sustained (while the attacker continues to deliver the attack) or persistent (the condition persists even after the attack has completed). Alternatively, the attacker has the ability to deny some availability, but the loss of availability presents a direct, serious consequence to the impacted component (e.g., the attacker cannot disrupt existing connections, but can prevent new connections; the attacker can repeatedly exploit a vulnerability that, in each instance of a successful attack, leaks a only small amount of memory, but after repeated exploitation causes a service to become completely unavailable).

Temporal Metrics

The Temporal metrics measure the current state of exploit techniques or code availability, the existence of any patches or workarounds, or the confidence in the description of a vulnerability.

Environmental Metrics

These metrics enable the analyst to customize the CVSS score depending on the importance of the affected IT asset to a user’s organization, measured in terms of Confidentiality, Integrity, and Availability.

 nvd@nist.gov
V2 7.2 AV:L/AC:L/Au:N/C:C/I:C/A:C nvd@nist.gov

CISA KEV (Kerentanan yang Diketahui Dieksploitasi)

Nama kerentanan : Linux Kernel Race Condition Vulnerability

Tindakan yang diperlukan : Apply updates per vendor instructions.

Diketahui Digunakan dalam Kampanye Ransomware : Unknown

Ditambahkan : 2022-03-03 00h00 +00:00

Tindakan jatuh tempo : 2022-03-24 00h00 +00:00

Informasi penting
CVE ini diidentifikasi sebagai rentan dan menimbulkan ancaman aktif, menurut Katalog Kerentanan yang Diketahui Dieksploitasi (CISA KEV). CISA telah mencantumkan kerentanan ini sebagai yang secara aktif dieksploitasi oleh penjahat siber, menekankan pentingnya mengambil tindakan segera untuk mengatasi kelemahan ini. Sangat penting untuk memprioritaskan pembaruan dan remediasi CVE ini guna melindungi sistem dari potensi serangan siber.

EPSS

EPSS adalah model penilaian yang memprediksi kemungkinan suatu kerentanan dieksploitasi.

Skor EPSS

Model EPSS menghasilkan skor probabilitas antara 0 dan 1 (0 hingga 100%). Semakin tinggi skor, semakin besar probabilitas bahwa suatu kerentanan akan dieksploitasi.

Persentil EPSS

Persentil digunakan untuk meranking CVE berdasarkan skor EPSS mereka. Misalnya, CVE di persentil ke-95 berdasarkan skor EPSS-nya lebih mungkin dieksploitasi daripada 95% CVE lainnya. Dengan demikian, persentil digunakan untuk membandingkan skor EPSS suatu CVE dengan CVE lainnya.
EPSS First.org

Informasi eksploitasi

Exploit Database EDB-ID : 40616

Tanggal publikasi : 2016-10-20 22h00 +00:00
Penulis : Robin Verton
Terverifikasi EDB : Yes

Exploit Database EDB-ID : 40847

Tanggal publikasi : 2016-11-26 23h00 +00:00
Penulis : Gabriele Bonacini
Terverifikasi EDB : Yes

Exploit Database EDB-ID : 40838

Tanggal publikasi : 2016-10-25 22h00 +00:00
Penulis : Phil Oester
Terverifikasi EDB : No

Exploit Database EDB-ID : 40839

Tanggal publikasi : 2016-11-27 23h00 +00:00
Penulis : FireFart
Terverifikasi EDB : Yes

Exploit Database EDB-ID : 40611

Tanggal publikasi : 2016-10-18 22h00 +00:00
Penulis : Phil Oester
Terverifikasi EDB : Yes

Produk yang Disebutkan

Konfigurasi 0

Canonical>>Ubuntu_linux >> Version 12.04

Canonical>>Ubuntu_linux >> Version 14.04

Canonical>>Ubuntu_linux >> Version 16.04

Canonical>>Ubuntu_linux >> Version 16.10

Konfigurasi 0

Linux>>Linux_kernel >> Version Dari (termasuk) 2.6.22 Hingga (tidak termasuk) 3.2.83

Linux>>Linux_kernel >> Version Dari (termasuk) 3.3 Hingga (tidak termasuk) 3.4.113

Linux>>Linux_kernel >> Version Dari (termasuk) 3.5 Hingga (tidak termasuk) 3.10.104

Linux>>Linux_kernel >> Version Dari (termasuk) 3.11 Hingga (tidak termasuk) 3.12.66

Linux>>Linux_kernel >> Version Dari (termasuk) 3.13 Hingga (tidak termasuk) 3.16.38

Linux>>Linux_kernel >> Version Dari (termasuk) 3.17 Hingga (tidak termasuk) 3.18.44

Linux>>Linux_kernel >> Version Dari (termasuk) 3.19 Hingga (tidak termasuk) 4.1.35

Linux>>Linux_kernel >> Version Dari (termasuk) 4.2 Hingga (tidak termasuk) 4.4.26

Linux>>Linux_kernel >> Version Dari (termasuk) 4.5 Hingga (tidak termasuk) 4.7.9

Linux>>Linux_kernel >> Version Dari (termasuk) 4.8 Hingga (tidak termasuk) 4.8.3

Konfigurasi 0

Redhat>>Enterprise_linux >> Version 5

Redhat>>Enterprise_linux >> Version 6.0

Redhat>>Enterprise_linux >> Version 7.0

Redhat>>Enterprise_linux_aus >> Version 6.2

Redhat>>Enterprise_linux_aus >> Version 6.4

Redhat>>Enterprise_linux_aus >> Version 6.5

Redhat>>Enterprise_linux_eus >> Version 6.6

Redhat>>Enterprise_linux_eus >> Version 6.7

Redhat>>Enterprise_linux_eus >> Version 7.1

Redhat>>Enterprise_linux_long_life >> Version 5.6

Redhat>>Enterprise_linux_long_life >> Version 5.9

Redhat>>Enterprise_linux_tus >> Version 6.5

Konfigurasi 0

Debian>>Debian_linux >> Version 7.0

Debian>>Debian_linux >> Version 8.0

Konfigurasi 0

Fedoraproject>>Fedora >> Version 23

Fedoraproject>>Fedora >> Version 24

Fedoraproject>>Fedora >> Version 25

Konfigurasi 0

Paloaltonetworks>>Pan-os >> Version Dari (termasuk) 5.1 Hingga (tidak termasuk) 7.0.14

Paloaltonetworks>>Pan-os >> Version Dari (termasuk) 7.1.0 Hingga (tidak termasuk) 7.1.8

Konfigurasi 0

Netapp>>Cloud_backup >> Version -

Netapp>>Hci_storage_nodes >> Version -

Netapp>>Oncommand_balance >> Version -

Netapp>>Oncommand_performance_manager >> Version -

Netapp>>Oncommand_unified_manager_for_clustered_data_ontap >> Version -

Netapp>>Ontap_select_deploy_administration_utility >> Version -

Netapp>>Snapprotect >> Version -

Netapp>>Solidfire >> Version -

Referensi

http://rhn.redhat.com/errata/RHSA-2016-2107.html
Tags : vendor-advisory, x_refsource_REDHAT
https://www.exploit-db.com/exploits/40616/
Tags : exploit, x_refsource_EXPLOIT-DB
https://access.redhat.com/errata/RHSA-2017:0372
Tags : vendor-advisory, x_refsource_REDHAT
https://www.exploit-db.com/exploits/40839/
Tags : exploit, x_refsource_EXPLOIT-DB
https://dirtycow.ninja
Tags : x_refsource_MISC
https://www.exploit-db.com/exploits/40847/
Tags : exploit, x_refsource_EXPLOIT-DB
http://rhn.redhat.com/errata/RHSA-2016-2118.html
Tags : vendor-advisory, x_refsource_REDHAT
http://rhn.redhat.com/errata/RHSA-2016-2128.html
Tags : vendor-advisory, x_refsource_REDHAT
http://rhn.redhat.com/errata/RHSA-2016-2120.html
Tags : vendor-advisory, x_refsource_REDHAT
http://www.openwall.com/lists/oss-security/2016/10/26/7
Tags : mailing-list, x_refsource_MLIST
http://rhn.redhat.com/errata/RHSA-2016-2133.html
Tags : vendor-advisory, x_refsource_REDHAT
http://rhn.redhat.com/errata/RHSA-2016-2098.html
Tags : vendor-advisory, x_refsource_REDHAT
https://www.kb.cert.org/vuls/id/243144
Tags : third-party-advisory, x_refsource_CERT-VN
http://www.securitytracker.com/id/1037078
Tags : vdb-entry, x_refsource_SECTRACK
http://www.securityfocus.com/bid/93793
Tags : vdb-entry, x_refsource_BID
http://rhn.redhat.com/errata/RHSA-2016-2127.html
Tags : vendor-advisory, x_refsource_REDHAT
http://rhn.redhat.com/errata/RHSA-2016-2106.html
Tags : vendor-advisory, x_refsource_REDHAT
https://www.exploit-db.com/exploits/40611/
Tags : exploit, x_refsource_EXPLOIT-DB
http://rhn.redhat.com/errata/RHSA-2016-2124.html
Tags : vendor-advisory, x_refsource_REDHAT
http://rhn.redhat.com/errata/RHSA-2016-2105.html
Tags : vendor-advisory, x_refsource_REDHAT
http://rhn.redhat.com/errata/RHSA-2016-2126.html
Tags : vendor-advisory, x_refsource_REDHAT
http://rhn.redhat.com/errata/RHSA-2016-2132.html
Tags : vendor-advisory, x_refsource_REDHAT
http://rhn.redhat.com/errata/RHSA-2016-2110.html
Tags : vendor-advisory, x_refsource_REDHAT
http://www.openwall.com/lists/oss-security/2016/10/27/13
Tags : mailing-list, x_refsource_MLIST
http://www.ubuntu.com/usn/USN-3106-2
Tags : vendor-advisory, x_refsource_UBUNTU
http://www.ubuntu.com/usn/USN-3106-3
Tags : vendor-advisory, x_refsource_UBUNTU
http://www.ubuntu.com/usn/USN-3105-2
Tags : vendor-advisory, x_refsource_UBUNTU
http://www.ubuntu.com/usn/USN-3107-1
Tags : vendor-advisory, x_refsource_UBUNTU
http://www.ubuntu.com/usn/USN-3107-2
Tags : vendor-advisory, x_refsource_UBUNTU
http://www.ubuntu.com/usn/USN-3106-1
Tags : vendor-advisory, x_refsource_UBUNTU
http://www.ubuntu.com/usn/USN-3106-4
Tags : vendor-advisory, x_refsource_UBUNTU
http://www.openwall.com/lists/oss-security/2016/10/30/1
Tags : mailing-list, x_refsource_MLIST
http://www.ubuntu.com/usn/USN-3104-2
Tags : vendor-advisory, x_refsource_UBUNTU
http://www.ubuntu.com/usn/USN-3105-1
Tags : vendor-advisory, x_refsource_UBUNTU
http://www.openwall.com/lists/oss-security/2016/11/03/7
Tags : mailing-list, x_refsource_MLIST
http://www.debian.org/security/2016/dsa-3696
Tags : vendor-advisory, x_refsource_DEBIAN
http://www.ubuntu.com/usn/USN-3104-1
Tags : vendor-advisory, x_refsource_UBUNTU
http://www.openwall.com/lists/oss-security/2016/10/21/1
Tags : mailing-list, x_refsource_MLIST
http://www.openwall.com/lists/oss-security/2022/03/07/1
Tags : mailing-list, x_refsource_MLIST
http://www.openwall.com/lists/oss-security/2022/08/08/2
Tags : mailing-list, x_refsource_MLIST
http://www.openwall.com/lists/oss-security/2022/08/08/1
Tags : mailing-list, x_refsource_MLIST
http://www.openwall.com/lists/oss-security/2022/08/08/7
Tags : mailing-list, x_refsource_MLIST
http://www.openwall.com/lists/oss-security/2022/08/08/8
Tags : mailing-list, x_refsource_MLIST
http://www.openwall.com/lists/oss-security/2022/08/09/4
Tags : mailing-list, x_refsource_MLIST
http://www.openwall.com/lists/oss-security/2022/08/15/1
Tags : mailing-list, x_refsource_MLIST
http://seclists.org/fulldisclosure/2024/Aug/35
Tags : Mailing List, Third Party Advisory
Informasi yang disajikan di CVE Find berasal dari beberapa sumber referensi yang dipilih dengan cermat. Data CVE disediakan oleh MITRE Corporation dan National Vulnerability Database (NVD). Katalog Known Exploited Vulnerabilities (KEV) bersumber dari Cybersecurity and Infrastructure Security Agency (CISA), sementara skor EPSS berasal dari FIRST.org. Selain itu, data mengenai kelemahan perangkat lunak (CWE) dan pola serangan umum (CAPEC) dikelola oleh MITRE Corporation, dan informasi tentang konfigurasi perangkat keras dan perangkat lunak (CPE) disediakan oleh NVD.