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CVE-2024-42326— Use after free vulnerability in browser.c

Quick assessment

Affected
Zabbix Zabbix
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Zabbix是Zabbix公司的一套开源的监控系统。该系统支持网络监控、服务器监控、云监控和应用监控等。 Zabbix 7.0.1至7.0.3版本存在资源管理错误漏洞，该漏洞源于browser.c文件的es_browser_get_variant函数中存在释放后重用漏洞。

CVSS 4.4 · Medium EPSS 0.24% · P14

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution
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I. Basic Information for CVE-2024-42326

Vulnerability Information
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Vulnerability Title
Use after free vulnerability in browser.c
Source: CVE Program / CVE List V5
Vulnerability Description
There was discovered a use after free bug in browser.c in the es_browser_get_variant function
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
释放后使用
Source: CVE Program / CVE List V5
Vulnerability Title
Zabbix 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Zabbix是Zabbix公司的一套开源的监控系统。该系统支持网络监控、服务器监控、云监控和应用监控等。 Zabbix 7.0.1至7.0.3版本存在资源管理错误漏洞，该漏洞源于browser.c文件的es_browser_get_variant函数中存在释放后重用漏洞。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Zabbix Zabbix 7.0.0 ~ 7.0.3 -

II. Public POCs for CVE-2024-42326

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III. Intelligence Information for CVE-2024-42326

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Same Patch Batch · Zabbix · 2024-11-27 · 11 CVEs total

CVE-2024-42327 9.9 CRITICAL SQL injection in user.get API
CVE-2024-42330 9.1 CRITICAL JS - Internal strings in HTTP headers
CVE-2024-36467 7.5 HIGH Authentication privilege escalation via user groups due to missing authorization checks
CVE-2024-42332 3.7 LOW New line injection in Zabbix SNMP traps
CVE-2024-42328 3.3 LOW JS - Crash on empty HTTP server response
CVE-2024-42331 3.3 LOW Use after free in browser_push_error
CVE-2024-42329 3.3 LOW JS - Crash on unexpected HTTP server response
CVE-2024-36468 3.0 LOW Stack buffer overflow in zbx_snmp_cache_handle_engineid
CVE-2024-36464 2.7 LOW Media Types: Office365, SMTP passwords are unencrypted and visible in plaintext when expor
CVE-2024-42333 2.7 LOW Heap buffer over-read

IV. Related Vulnerabilities

Same product: Zabbix
Same vendor: Zabbix
Same weakness: CWE-416

V. Comments for CVE-2024-42326

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