CVE-2008-1637
pdns-recursor - predictable randomness
EPSS 0.03%
描述
PowerDNS Recursor before 3.1.5 uses insufficient randomness to calculate (1) TRXID values and (2) UDP source port numbers, which makes it easier for remote attackers to poison a DNS cache, related to (a) algorithmic deficiencies in rand and random functions in external libraries, (b) use of a 32-bit seed value, and (c) choice of the time of day as the sole seeding information.
如何修補 CVE-2008-1637
要修補 CVE-2008-1637,請將受影響套件升級到下列已修補版本。
- Debian/pdns-recursor—升級至 3.1.7-1 或更新版本
- Debian/pdns-recursor—升級至 3.1.4-1+etch1 或更新版本
- —升級至 3.1.4-1+etch2 或更新版本
CVE-2008-1637 正在被利用嗎?
低 — EPSS 為 0.0%,目前沒有觀察到大規模利用活動。
受影響套件(3)
- from 0, < 3.1.7-1
- from 0, < 3.1.4-1+etch1
- from 0, < 3.1.4-1+etch2