The posix_spawn_file_actions_addopen function in glibc before 2.20 does not copy its path argument in accordance with the POSIX specification, which allows context-dependent attackers to trigger use-after-free vulnerabilities.
The MITRE CVE dictionary describes this issue as:
Find out more about CVE-2014-4043 from the MITRE CVE dictionary dictionary and NIST NVD.
The Red Hat Security Response Team has rated this issue as having Low security impact. This issue is not currently planned to be addressed in future updates for Red Hat Enterprise Linux 4 and 5. A future update may address this flaw in Red Hat Enterprise Linux 6 or 7. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.
NOTE: The following CVSS v2 metrics and score provided are preliminary and subject to review.
| Base Score | 1 |
|---|---|
| Base Metrics | AV:L/AC:H/Au:S/C:P/I:N/A:N |
| Access Vector | Local |
| Access Complexity | High |
| Authentication | Single |
| Confidentiality Impact | Partial |
| Integrity Impact | None |
| Availability Impact | None |
Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).
| Platform | Package | State |
|---|---|---|
| Red Hat Enterprise Linux 7 | glibc | Fix deferred |
| Red Hat Enterprise Linux 6 | glibc | Fix deferred |
| Red Hat Enterprise Linux 5 | glibc | Will not fix |
| Red Hat Enterprise Linux 4 | glibc | Will not fix |
Vulmon