CVE-2015-7940

描述

The Bouncy Castle Java library before 1.51 does not validate a point is withing the elliptic curve, which makes it easier for remote attackers to obtain private keys via a series of crafted elliptic curve Diffie Hellman (ECDH) key exchanges, aka an "invalid curve attack."

如何修補 CVE-2015-7940

要修補 CVE-2015-7940,請將受影響套件升級到下列已修補版本。

• Debian/bouncycastle—升級至 1.51-1 或更新版本
• Debian/bouncycastle—升級至 1.44+dfsg-2+deb6u1 或更新版本
• Debian/bouncycastle—升級至 1.44+dfsg-3.1+deb7u1 或更新版本
• —升級至 1.51 或更新版本
• —升級至 1.51 或更新版本
• —升級至 1.51 或更新版本

CVE-2015-7940 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(6)

• from 0, < 1.51-1
• from 0, < 1.44+dfsg-2+deb6u1
• from 0, < 1.44+dfsg-3.1+deb7u1
• from 0, < 1.51
• from 0, < 1.51
• from 0, < 1.51

參考連結(24)

• ADVISORYgithub.com/advisories/GHSA-4mv7-cq75-3qjm
• ADVISORYnvd.nist.gov/vuln/detail/CVE-2015-7940
• ADVISORYsecurity-tracker.debian.org/tracker/CVE-2015-7940
• WEBlists.fedoraproject.org/pipermail/package-announce/2016-January/174915.html