CVE-2014-6277
描述
GNU Bash through 4.3 bash43-026 does not properly parse function definitions in the values of environment variables, which allows remote attackers to execute arbitrary code or cause a denial of service (uninitialized memory access, and untrusted-pointer read and write operations) via a crafted environment, as demonstrated by vectors involving the ForceCommand feature in OpenSSH sshd, the mod_cgi and mod_cgid modules in the Apache HTTP Server, scripts executed by unspecified DHCP clients, and other situations in which setting the environment occurs across a privilege boundary from Bash execution. NOTE: this vulnerability exists because of an incomplete fix for CVE-2014-6271 and CVE-2014-7169.
如何修補 CVE-2014-6277
要修補 CVE-2014-6277,請將受影響套件升級到下列已修補版本。
- —升級至 4.3-9.2 或更新版本
CVE-2014-6277 正在被利用嗎?
可能 — EPSS 為 64.3%,屬於高被利用機率區間,建議優先修補。
受影響套件(1)
- from 0, < 4.3-9.2