Nginx Plus up to R27 ngx_http_hls_module out-of-bounds write

CVSS Meta Temp Score
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CTI Interest Score
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7.7$0-$5k0.04

A vulnerability classified as critical has been found in Nginx Plus up to R27 (Web Server). This affects an unknown code of the component ngx_http_hls_module. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. CWE is classifying the issue as CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

NGINX Plus before versions R27 P1 and R26 P1 have a vulnerability in the module ngx_http_hls_module that might allow a local attacker to corrupt NGINX worker memory, resulting in its crash or potential other impact using a specially crafted audio or video file. The issue affects only NGINX Plus when the hls directive is used in the configuration file. Further, the attack is possible only if an attacker can trigger processing of a specially crafted audio or video file with the module ngx_http_hls_module.

The weakness was disclosed 10/20/2022 as K01112063. It is possible to read the advisory at support.f5.com. This vulnerability is uniquely identified as CVE-2022-41743 since 09/28/2022. The technical details are unknown and an exploit is not publicly available.

Applying the patch R26 P1/R27 P1 is able to eliminate this problem.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.9
VulDB Meta Temp Score: 7.7

VulDB Base Score: 8.8
VulDB Temp Score: 8.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 7.0
CNA Vector (F5 Networks): 🔍

CVSSv2info

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

Exploitinginfo

Class: Out-of-bounds write
CWE: CWE-787 / CWE-119
ATT&CK: Unknown

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: Patch
Status: 🔍

0-Day Time: 🔍

Patch: R26 P1/R27 P1

Timelineinfo

09/28/2022 🔍
10/20/2022 +22 days 🔍
10/20/2022 +0 days 🔍
10/20/2022 +0 days 🔍

Sourcesinfo

Advisory: K01112063
Status: Confirmed

CVE: CVE-2022-41743 (🔍)

Entryinfo

Created: 10/20/2022 15:53
Changes: 10/20/2022 15:53 (52)
Complete: 🔍

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