جزئیات آسیب‌پذیری
CVE-2026-33782
Junos OS: MX Series: In specific DHCPv6 scenarios jdhcpd memory increases continuously with subscriber logouts
شرح رسمی (انگلیسی)
A Missing Release of Memory after Effective Lifetime vulnerability in the DHCP daemon (jdhcpd) of Juniper Networks Junos OS on MX Series, allows an adjacent, unauthenticated attacker to cause a memory leak, that will eventually cause a complete Denial-of-Service (DoS). In a DHCPv6 over PPPoE, or DHCPv6 over VLAN with Active lease query or Bulk lease query scenario, every subscriber logout will leak a small amount of memory. When all available memory has been exhausted, jdhcpd will crash and restart which causes a complete service impact until the process has recovered. The memory usage of jdhcpd can be monitored with: user@host> show system processes extensive | match jdhcpd This issue affects Junos OS: * all versions before 22.4R3-S1, * 23.2 versions before 23.2R2, * 23.4 versions before 23.4R2.
امتیازهای CVSS
| امتیاز | نسخه | منبع | بردار |
|---|---|---|---|
| 8.7بالا | 4.0 | CVEProject cvelistV5 (CNA) (juniper) | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/AU:Y/RE:M |
| 6.5متوسط | 3.1 | CVEProject cvelistV5 (CNA) (juniper) | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
محصولات آسیب‌پذیر
| فروشنده | محصول | نسخه‌ها | منبع |
|---|---|---|---|
| Juniper Networks | Junos OS | v < 22.4R3-S1 | CVEProject cvelistV5 (CNA) |
| Juniper Networks | Junos OS | 23.2 ≤ v < 23.2R2 | CVEProject cvelistV5 (CNA) |
| Juniper Networks | Junos OS | 23.4 ≤ v < 23.4R2 | CVEProject cvelistV5 (CNA) |
منابع و راهنماها
۱- https://kb.juniper.net/JSA107820 vendor-advisory
اطلاعات
- تاریخ انتشار
- ۱۴۰۵/۰۱/۲۱
- آخرین به‌روزرسانی
- ۱۴۰۵/۰۱/۲۴
- وضعیت
- منتشرشده
- صادرکننده (CNA)
- juniper
پیش‌بینی بهره‌برداری (EPSS)
ارزیابی SSVC (CISA)
- قابل خودکارسازی
- خیر
- وضعیت بهره‌برداری
- ندارد
- اثر فنی
- جزئی
ضعف‌ها (CWE)
- CWE-401Missing Release of Memory after Effective Lifetime