Multiple vulnerabilities in nginx and NGINX Plus



Risk Medium
Patch available YES
Number of vulnerabilities 4
CVE-ID CVE-2024-31079
CVE-2024-32760
CVE-2024-34161
CVE-2024-35200
CWE-ID CWE-121
CWE-787
CWE-416
CWE-476
Exploitation vector Network
Public exploit N/A
Vulnerable software
 nginx
Server applications / Web servers

NGINX Plus
Server applications / Web servers

Vendor NGINX
F5 Networks

Security Bulletin

This security bulletin contains information about 4 vulnerabilities.

1) Stack-based buffer overflow

EUVDB-ID: #VU90991

Risk: Medium

CVSSv3.1: 4.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-31079

CWE-ID: CWE-121 - Stack-based buffer overflow

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error when HTTP/3 requests within the HTTP/3 QUIC module
 (ngx_http_v3_module). A remote attacker can send specially crafted requests to the web server, trigger a stack-based buffer overflow and perform a denial of service (DoS) attack.

This attack requires that a request be specifically timed during the connection draining process, which the attacker has no visibility and limited influence over.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

nginx: 1.25.0 - 1.26.0

NGINX Plus: R30 P1 - R31

CPE2.3 External links

http://my.f5.com/manage/s/article/K000139611
http://mailman.nginx.org/pipermail/nginx-announce/2024/GMY32CSHFH6VFTN76HJNX7WNEX4RLHF6.html


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Out-of-bounds write

EUVDB-ID: #VU90993

Risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-32760

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error when processing HTTP/3 requests within the HTTP/3 QUIC module (ngx_http_v3_module). A remote attacker can send specially crafted HTTP/3 requests to the web server, trigger an out-of-bounds write and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

nginx: 1.25.0 - 1.26.0

NGINX Plus: R30 P1 - R31

CPE2.3
External links

http://my.f5.com/manage/s/article/K000139609
http://mailman.nginx.org/pipermail/nginx-announce/2024/GMY32CSHFH6VFTN76HJNX7WNEX4RLHF6.html


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

3) Use-after-free

EUVDB-ID: #VU90994

Risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-34161

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to a use-after-free error within the HTTP/3 QUIC module (ngx_http_v3_module). A remote attacker can send specially crafted HTTP/3 requests to the web server and read parts of free memory.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

nginx: 1.25.0 - 1.26.0

NGINX Plus: R30 P1 - R31

CPE2.3
External links

http://my.f5.com/manage/s/article/K000139627
http://mailman.nginx.org/pipermail/nginx-announce/2024/GMY32CSHFH6VFTN76HJNX7WNEX4RLHF6.html


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

4) NULL pointer dereference

EUVDB-ID: #VU90995

Risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-35200

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error within the HTTP/3 QUIC module (ngx_http_v3_module). A remote attacker can send specially crafted HTTP/3 requests to the web server and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

nginx: 1.25.0 - 1.26.0

NGINX Plus: R30 P1 - R31

CPE2.3
External links

http://my.f5.com/manage/s/article/K000139612
http://mailman.nginx.org/pipermail/nginx-announce/2024/GMY32CSHFH6VFTN76HJNX7WNEX4RLHF6.html


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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