A flaw was found in the way Bash evaluated certain specially crafted environment variables. An attacker could use this flaw to override or bypass environment restrictions to execute shell commands. Certain services and applications allow remote unauthenticated attackers to provide environment variables, allowing them to exploit this issue.
Find out more about CVE-2014-6271 from the MITRE CVE dictionary dictionary and NIST NVD.
| Base Score | 7.5 |
|---|---|
| Base Metrics | AV:N/AC:L/Au:N/C:P/I:P/A:P |
| Access Vector | Network |
| Access Complexity | Low |
| Authentication | None |
| Confidentiality Impact | Partial |
| Integrity Impact | Partial |
| Availability Impact | Partial |
Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).
| Platform | Errata | Release Date |
|---|---|---|
| Red Hat Enterprise Linux 5 (bash) | RHSA-2014:1293 | 2014-09-24 |
| Red Hat Enterprise Linux Extended Update Support 6.4 (bash) | RHSA-2014:1294 | 2014-09-24 |
| Red Hat Enterprise Linux Long Life (v. 5.6 server) (bash) | RHSA-2014:1294 | 2014-09-24 |
| S-JIS for Red Hat Enteprise Linux 6 Server (bash) | RHSA-2014:1295 | 2014-09-24 |
| S-JIS for Red Hat Enteprise Linux 5 Server (bash) | RHSA-2014:1295 | 2014-09-24 |
| Red Hat Enterprise Linux 6 (bash) | RHSA-2014:1293 | 2014-09-24 |
| Red Hat Enterprise Linux EUS (v. 5.9 server) (bash) | RHSA-2014:1294 | 2014-09-24 |
| RHEV Manager 3 (rhev-hypervisor6) | RHSA-2014:1354 | 2014-10-02 |
| Red Hat Enterprise Linux Extended Lifecycle Support 4 (bash) | RHSA-2014:1294 | 2014-09-24 |
| Red Hat Enterprise Linux Advanced Update Support 6.2 (bash) | RHSA-2014:1294 | 2014-09-24 |
| Red Hat Enterprise Linux 7 (bash) | RHSA-2014:1293 | 2014-09-24 |
| Platform | Package | State |
|---|---|---|
| Red Hat Enterprise Linux 7 | rhel-guest-image | Affected |
| Red Hat Enterprise Linux 6 | guest-images | Affected |
| Red Hat Enterprise Linux 3 | bash | Affected |
| RHEV Manager 3 | rhev-hypervisor | Affected |
Vulmon