VulnerabilityModified

CVE-2014-6277

HIGH 10.0EPSS 64.3%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 64.3%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.

Description

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.

CVSS 2.0: 10.0 HIGHAV:N/AC:L/Au:N/C:C/I:C/A:C
EPSS: 64.33% probability · 99th percentile
CISA KEV: Not listed
Weakness: CWE-78
Affected: gnu/bash
Source: security@debian.org

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.