PT-2022-3727 · Nginx · Nginx Njs

Dramthy · Published 2022-07-18 · Updated 2022-07-25 · CVE-2022-34030

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Nginx NJS version 0.7.5

Description The issue is related to a segmentation violation via the njs djb hash() function at src/njs djb hash.c in the Nginx NJS interpreter. This can lead to a buffer overflow in memory, potentially allowing a remote attacker to execute arbitrary code.

Recommendations For Nginx NJS version 0.7.5, consider disabling the njs djb hash() function as a temporary workaround until a patch is available.

Exploit

Fix

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

BDU:2022-04515

CVE-2022-34030

Affected Products

Nginx Njs

References · 6

• 🔥 https://github.com/nginx/njs/issues/540 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2022-34030 · Security Note
• https://osv.dev/vulnerability/CVE-2022-34030 · Vendor Advisory
• https://bdu.fstec.ru/vul/2022-04515 · Security Note
• https://t.me/cibsecurity/46508 · Telegram Post
• https://t.me/cvenotify/33333 · Telegram Post