Apache HTTP Server 1.15.17/2.4.47 mod_http2 null pointer dereference

| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 5.1 | $0-$5k | 0.00 |
Summary
A vulnerability identified as problematic has been detected in Apache HTTP Server 1.15.17/2.4.47. This affects an unknown function of the component mod_http2. The manipulation leads to null pointer dereference. This vulnerability is listed as CVE-2021-31618. The attack may be initiated remotely. There is no available exploit. You should upgrade the affected component.
Details
A vulnerability was found in Apache HTTP Server 1.15.17/2.4.47 (Web Server) and classified as problematic. This issue affects some unknown functionality of the component mod_http2. The manipulation with an unknown input leads to a null pointer dereference vulnerability. Using CWE to declare the problem leads to 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. Impacted is availability.
The weakness was presented 06/15/2021. The advisory is shared at seclists.org. The identification of this vulnerability is CVE-2021-31618. Neither technical details nor an exploit are publicly available.
Upgrading to version 2.4.48 eliminates this vulnerability.
If you want to get the best quality for vulnerability data then you always have to consider VulDB.
Product
Type
Vendor
Name
Version
License
Website
- Vendor: https://www.apache.org/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 5.3VulDB Meta Temp Score: 5.1
VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
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| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
Exploiting
Class: Null pointer dereferenceCWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍
Physical: No
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
| 0-Day | Unlock | Unlock | Unlock | Unlock |
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Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: HTTP Server 2.4.48
Timeline
04/23/2021 🔍06/15/2021 🔍
06/15/2021 🔍
06/18/2021 🔍
Sources
Vendor: apache.orgAdvisory: seclists.org
Status: Confirmed
Confirmation: 🔍
CVE: CVE-2021-31618 (🔍)
GCVE (CVE): GCVE-0-2021-31618
GCVE (VulDB): GCVE-100-177053
Entry
Created: 06/15/2021 12:25Updated: 06/18/2021 11:31
Changes: 06/15/2021 12:25 (41), 06/18/2021 11:31 (5)
Complete: 🔍
Cache ID: 216::103
If you want to get the best quality for vulnerability data then you always have to consider VulDB.
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