Linux Kernel up to 4.13.3 net/wireless/nl80211.c nl80211_set_rekey_data null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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3.3$0-$5k0.00

A vulnerability classified as problematic was found in Linux Kernel up to 4.13.3 (Operating System). This vulnerability affects the function nl80211_set_rekey_data of the file net/wireless/nl80211.c. The manipulation with an unknown input leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. As an impact it is known to affect availability. CVE summarizes:

A security flaw was discovered in the nl80211_set_rekey_data() function in net/wireless/nl80211.c in the Linux kernel through 4.13.3. This function does not check whether the required attributes are present in a Netlink request. This request can be issued by a user with the CAP_NET_ADMIN capability and may result in a NULL pointer dereference and system crash.

The bug was discovered 08/01/2017. The weakness was published 09/21/2017 as confirmed mailinglist post (oss-sec). The advisory is available at seclists.org. This vulnerability was named CVE-2017-12153 since 08/01/2017. The exploitation appears to be easy. The attack can be initiated remotely. The requirement for exploitation is a single authentication. Technical details are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 50 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 103363 (Debian DLA-1099-1 : linux security update (BlueBorne) (Stack Clash)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 157912 (Oracle Enterprise Linux Security Update for Unbreakable Enterprise kernel (ELSA-2019-4531)).

Applying a patch is able to eliminate this problem. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (103363). Similar entries are available at 105605, 106083, 106127 and 106121.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 3.3
VulDB Meta Temp Score: 3.3

VulDB Base Score: 2.3
VulDB Temp Score: 2.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 4.4
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 103363
Nessus Name: Debian DLA-1099-1 : linux security update (BlueBorne) (Stack Clash)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 53754
OpenVAS Name: Debian Security Advisory DSA 3981-1 (linux - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: git.kernel.org

Timelineinfo

08/01/2017 🔍
08/01/2017 +0 days 🔍
09/13/2017 +43 days 🔍
09/20/2017 +7 days 🔍
09/21/2017 +1 days 🔍
09/21/2017 +0 days 🔍
09/21/2017 +0 days 🔍
09/21/2017 +0 days 🔍
12/29/2022 +1925 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: USN-3583-1
Researcher: bo Zhang
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-12153 (🔍)
OVAL: 🔍

SecurityFocus: 100855 - Linux Kernel CVE-2017-12153 Null Pointer Dereference Local Denial of Service Vulnerability

See also: 🔍

Entryinfo

Created: 09/21/2017 21:44
Updated: 12/29/2022 15:53
Changes: 09/21/2017 21:44 (63), 11/18/2019 11:47 (11), 01/13/2021 16:22 (12), 01/13/2021 16:26 (1), 12/29/2022 15:53 (4)
Complete: 🔍

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