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GNU Bash through 4.3 bash43-026 improperly parses function definitions embedded in environment variable values. CVE-2014-6277 is an incomplete-fix follow-on to the original Shellshock issues (including CVE-2014-6271 and CVE-2014-7169). A crafted environment presented across a privilege boundary to a Bash process can trigger arbitrary code execution, or denial of service via uninitialized memory access and untrusted-pointer read/write behavior. Documented exposure vectors include OpenSSH sshd ForceCommand, Apache HTTP Server mod_cgi and mod_cgid, DHCP client script execution, and other cases where attacker-controlled environment variables are passed to Bash.
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Patch, then assume compromise.
No valid public exploits. Mallory filtered out 4 candidates as fakes, detection scripts, or README-only repos.
All candidate exploits were filtered out by Mallory's validation.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
31 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A critical GNU Bash remote code execution vulnerability caused by another incomplete Shellshock-related fix in parsing function definitions from environment variables.
A GNU Bash arbitrary code execution vulnerability caused by an incomplete fix for parsing function definitions in environment variables.
A Bash Shell vulnerability included in the Shellshock set of flaws affecting HP Shunra Network Appliance / HP Shunra Wildcat Appliance.
One of the Shellshock Bash vulnerabilities referenced by the bulletin as allowing remote code execution.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.