CVE-2012-4502
chrony - several
EPSS 3.3%
描述
Multiple integer overflows in pktlength.c in Chrony before 1.29 allow remote attackers to cause a denial of service (crash) via a crafted (1) REQ_SUBNETS_ACCESSED or (2) REQ_CLIENT_ACCESSES command request to the PKL_CommandLength function or crafted (3) RPY_SUBNETS_ACCESSED, (4) RPY_CLIENT_ACCESSES, (5) RPY_CLIENT_ACCESSES_BY_INDEX, or (6) RPY_MANUAL_LIST command reply to the PKL_ReplyLength function, which triggers an out-of-bounds read or buffer overflow. NOTE: versions 1.27 and 1.28 do not require authentication to exploit.
如何修補 CVE-2012-4502
要修補 CVE-2012-4502,請將受影響套件升級到下列已修補版本。
- —升級至 1.29-1 或更新版本
- —升級至 1.24-3+squeeze1 或更新版本
CVE-2012-4502 正在被利用嗎?
低 — EPSS 為 3.3%,目前沒有觀察到大規模利用活動。
受影響套件(2)
- from 0, < 1.29-1
- from 0, < 1.24-3+squeeze1