CVE-2014-6272
libevent - security update
EPSS 2.1%
描述
Multiple integer overflows in the evbuffer API in Libevent 1.4.x before 1.4.15, 2.0.x before 2.0.22, and 2.1.x before 2.1.5-beta allow context-dependent attackers to cause a denial of service or possibly have other unspecified impact via "insanely large inputs" to the (1) evbuffer_add, (2) evbuffer_expand, or (3) bufferevent_write function, which triggers a heap-based buffer overflow or an infinite loop. NOTE: this identifier has been SPLIT per ADT3 due to different affected versions. See CVE-2015-6525 for the functions that are only affected in 2.0 and later.
如何修補 CVE-2014-6272
要修補 CVE-2014-6272,請將受影響套件升級到下列已修補版本。
- —升級至 2.0.21-stable-2 或更新版本
- —升級至 1.4.13-stable-1+deb6u1 或更新版本
- —升級至 2.0.19-stable-3+deb7u1 或更新版本
CVE-2014-6272 正在被利用嗎?
低 — EPSS 為 2.1%,目前沒有觀察到大規模利用活動。
受影響套件(3)
- from 0, < 2.0.21-stable-2
- from 0, < 1.4.13-stable-1+deb6u1
- from 0, < 2.0.19-stable-3+deb7u1