Linux Kernel 3.10.x/4.18.x cgroups Subsystem memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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5.4$5k-$25k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Linux Kernel 3.10.x/4.18.x. The affected element is an unknown function of the component cgroups Subsystem. The manipulation leads to memory corruption. This vulnerability is referenced as CVE-2019-3874. The attack needs to be initiated within the local network. No exploit is available.

Detailsinfo

A vulnerability was found in Linux Kernel 3.10.x/4.18.x (Operating System) and classified as problematic. This issue affects some unknown processing of the component cgroups Subsystem. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is availability. The summary by CVE is:

The SCTP socket buffer used by a userspace application is not accounted by the cgroups subsystem. An attacker can use this flaw to cause a denial of service attack. Kernel 3.10.x and 4.18.x branches are believed to be vulnerable.

The bug was discovered 04/02/2019. The weakness was published 03/25/2019 as confirmed bug report (Bugzilla). It is possible to read the advisory at bugzilla.redhat.com. The identification of this vulnerability is CVE-2019-3874 since 01/03/2019. The exploitation is known to be easy. Access to the local network is required for this attack to succeed. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 08/07/2023).

The commercial vulnerability scanner Qualys is able to test this issue with plugin 197463 (Ubuntu Security Notification for Linux, Linux-aws, Linux-gcp, Linux-kvm, Linux-oem, Linux-oracle, (USN-3981-1)).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 108142†). Similar entries are available at VDB-131275, VDB-133262 and VDB-134317. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.4

VulDB Base Score: 4.3
VulDB Temp Score: 4.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CNA Base Score: 5.3
CNA Vector (Red Hat, Inc.): 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/03/2019 🔍
03/25/2019 +81 days 🔍
03/26/2019 +1 days 🔍
04/02/2019 +7 days 🔍
05/02/2019 +30 days 🔍
08/07/2023 +1558 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: RHSA-2019:3309
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2019-3874 (🔍)
GCVE (CVE): GCVE-0-2019-3874
GCVE (VulDB): GCVE-100-132215
SecurityFocus: 108142 - Linux Kernel CVE-2019-11683 Remote Denial of Service Vulnerability

See also: 🔍

Entryinfo

Created: 03/26/2019 14:05
Updated: 08/07/2023 10:59
Changes: 03/26/2019 14:05 (62), 05/20/2020 07:49 (4), 08/07/2023 10:52 (3), 08/07/2023 10:59 (10)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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