A buffer overflow in glibc 2.5 (released on September 29, 2006) and can be triggered through the LD_LIBRARY_PATH environment variable. Please note that many versions of glibc are not vulnerable to this issue if patched for CVE-2017-1000366.
The MITRE CVE dictionary describes this issue as:
Find out more about CVE-2017-1000409 from the MITRE CVE dictionary dictionary and NIST NVD.
This issue did not affect the versions of glibc as shipped with Red Hat Enterprise Linux 5, 6 and 7 after CVE-2017-1000366 fix:
NOTE: The following CVSS v3 metrics and score provided are preliminary and subject to review.
| CVSS3 Base Score | 4.7 |
|---|---|
| CVSS3 Base Metrics | CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H |
| Attack Vector | Local |
| Attack Complexity | High |
| Privileges Required | Low |
| User Interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity Impact | None |
| Availability Impact | High |
| Platform | Package | State |
|---|---|---|
| Red Hat Enterprise Linux 7 | glibc | Not affected |
| Red Hat Enterprise Linux 7 | compat-glibc | Not affected |
| Red Hat Enterprise Linux 6 | glibc | Not affected |
| Red Hat Enterprise Linux 6 | compat-glibc | Not affected |
| Red Hat Enterprise Linux 5 | compat-glibc | Not affected |
| Red Hat Enterprise Linux 5 | glibc | Not affected |
Vulmon