CVE-2015-6525

描述

Multiple integer overflows in the evbuffer API in Libevent 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_prepend, (3) evbuffer_expand, (4) exbuffer_reserve_space, or (5) evbuffer_read function, which triggers a heap-based buffer overflow or an infinite loop. NOTE: this identifier was SPLIT from CVE-2014-6272 per ADT3 due to different affected versions.

如何修補 CVE-2015-6525

要修補 CVE-2015-6525,請將受影響套件升級到下列已修補版本。

• Debian/libevent—升級至 2.0.21-stable-2 或更新版本

CVE-2015-6525 正在被利用嗎?

低 — EPSS 為 4.8%,目前沒有觀察到大規模利用活動。

受影響套件(1)

• from 0, < 2.0.21-stable-2

參考連結(1)

• ADVISORYsecurity-tracker.debian.org/tracker/CVE-2015-6525