Oracle HTTP Server 12.2.1.4.0 SSL Module denial of service

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.3$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in Oracle HTTP Server 12.2.1.4.0. This affects an unknown part of the component SSL Module. The manipulation results in denial of service. This vulnerability is identified as CVE-2021-34798. The attack can be executed remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in Oracle HTTP Server 12.2.1.4.0 (Web Server). It has been classified as critical. Affected is some unknown functionality of the component SSL Module. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability.

The weakness was released 04/18/2023 as Oracle Critical Patch Update Advisory - April 2023. The advisory is shared for download at oracle.com. This vulnerability is traded as CVE-2021-34798. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1499.

The vulnerability scanner Nessus provides a plugin with the ID 282589 (Oracle Linux 7 : httpd (ELSA-2026-0075)), which helps to determine the existence of the flaw in a target environment.

A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (282589). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.3

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
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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Nessus ID: 282589
Nessus Name: Oracle Linux 7 : httpd (ELSA-2026-0075)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Timelineinfo

06/16/2021 🔍
04/18/2023 +671 days 🔍
04/18/2023 +0 days 🔍
04/18/2023 +0 days 🔍
01/14/2026 +1002 days 🔍

Sourcesinfo

Vendor: oracle.com

Advisory: Oracle Critical Patch Update Advisory - April 2023
Status: Confirmed

CVE: CVE-2021-34798 (🔍)
GCVE (CVE): GCVE-0-2021-34798
GCVE (VulDB): GCVE-100-226536

Entryinfo

Created: 04/18/2023 23:16
Updated: 01/14/2026 04:40
Changes: 04/18/2023 23:16 (39), 05/11/2023 09:38 (2), 05/11/2023 09:41 (17), 01/14/2026 04:40 (17)
Complete: 🔍
Cache ID: 216:C99:103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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