systemd-journald up to v240 Command Line memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.8$0-$5k0.00

Summaryinfo

A vulnerability was found in systemd-journald up to v240. It has been declared as critical. This vulnerability affects unknown code of the component Command Line. Such manipulation leads to memory corruption. This vulnerability is traded as CVE-2018-16864. An attack has to be approached locally. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in systemd-journald up to v240. Affected by this issue is some unknown processing of the component Command Line. 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 confidentiality, integrity, and availability. CVE summarizes:

An allocation of memory without limits, that could result in the stack clashing with another memory region, was discovered in systemd-journald when a program with long command line arguments calls syslog. A local attacker may use this flaw to crash systemd-journald or escalate his privileges. Versions through v240 are vulnerable.

The bug was discovered 01/09/2019. The weakness was shared 01/11/2019 with Qualys as confirmed bug report (Bugzilla). The advisory is shared for download at bugzilla.redhat.com. This vulnerability is handled as CVE-2018-16864 since 09/11/2018. The attack needs to be approached locally. Required for exploitation is a simple authentication. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 121061 (SUSE SLES12 Security Update : systemd (SUSE-SU-2019:0054-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 157892 (Oracle Enterprise Linux Security Update for systemd (ELSA-2019-0049)).

Upgrading eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (121061) and SecurityFocus (BID 106523†). The entries VDB-129045, VDB-133502, VDB-133503 and VDB-133504 are related to this item. Once again VulDB remains the best source for vulnerability data.

Productinfo

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Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.8
VulDB Meta Temp Score: 6.8

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CNA Base Score: 7.4
CNA Vector (Red Hat, Inc.): 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 121061
Nessus Name: SUSE SLES12 Security Update : systemd (SUSE-SU-2019:0054-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

09/11/2018 🔍
01/09/2019 +120 days 🔍
01/09/2019 +0 days 🔍
01/09/2019 +0 days 🔍
01/10/2019 +1 days 🔍
01/11/2019 +1 days 🔍
01/11/2019 +0 days 🔍
01/12/2019 +1 days 🔍
06/26/2023 +1626 days 🔍

Sourcesinfo

Advisory: RHSA-2019:0049
Organization: Qualys
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-16864 (🔍)
GCVE (CVE): GCVE-0-2018-16864
GCVE (VulDB): GCVE-100-129044

OVAL: 🔍

SecurityFocus: 106523 - systemd-journald CVE-2018-16864 Stack-Based Buffer Overflow Vulnerability

See also: 🔍

Entryinfo

Created: 01/12/2019 11:49
Updated: 06/26/2023 10:43
Changes: 01/12/2019 11:49 (72), 04/28/2020 20:23 (7), 06/26/2023 10:37 (4), 06/26/2023 10:43 (12)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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