Samba up to 4.9.17/4.10.11/4.11.4 realloc use after free

CVSS Meta Temp Score
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CTI Interest Score
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5.7$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in Samba up to 4.9.17/4.10.11/4.11.4. This issue affects the function realloc. Such manipulation leads to use after free. This vulnerability is documented as CVE-2019-19344. The attack can be executed remotely. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Samba up to 4.9.17/4.10.11/4.11.4 (File Transfer Software). Affected by this issue is the function realloc. The manipulation with an unknown input leads to a use after free vulnerability. Using CWE to declare the problem leads to CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. Impacted is availability. CVE summarizes:

There is a use-after-free issue in all samba 4.9.x versions before 4.9.18, all samba 4.10.x versions before 4.10.12 and all samba 4.11.x versions before 4.11.5, essentially due to a call to realloc() while other local variables still point at the original buffer.

The weakness was released 01/21/2020 as not defined bug report (Bugzilla). The advisory is available at bugzilla.redhat.com. This vulnerability is handled as CVE-2019-19344 since 11/27/2019. The attack may be launched remotely. A simple authentication is required for exploitation. Technical details are known, but there is no available exploit.

Upgrading to version 4.9.18, 4.10.12 or 4.11.5 eliminates this vulnerability.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.8
VulDB Meta Temp Score: 5.7

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CNA Base Score: 6.5
CNA Vector (Red Hat, Inc.): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Samba 4.9.18/4.10.12/4.11.5

Timelineinfo

11/27/2019 🔍
01/21/2020 +55 days 🔍
01/22/2020 +1 days 🔍
01/15/2025 +1820 days 🔍

Sourcesinfo

Product: samba.org

Advisory: SA_20_01
Status: Confirmed

CVE: CVE-2019-19344 (🔍)
GCVE (CVE): GCVE-0-2019-19344
GCVE (VulDB): GCVE-100-149186

Entryinfo

Created: 01/22/2020 11:50
Updated: 01/15/2025 05:57
Changes: 01/22/2020 11:50 (39), 01/22/2020 11:55 (12), 03/25/2024 08:40 (17), 03/25/2024 08:42 (20), 01/15/2025 05:57 (3)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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