A buffer overflow flaw was found in the way glibc's gethostbyname_r() and other related functions computed the size of a buffer when passed a misaligned buffer as input. An attacker able to make an application call any of these functions with a misaligned buffer could use this flaw to crash the application or, potentially, execute arbitrary code with the permissions of the user running the application.
Find out more about CVE-2015-1781 from the MITRE CVE dictionary dictionary and NIST NVD.
Red Hat Enterprise Linux 5 is now in Production 3 Phase of the support and maintenance life cycle. This has been rated as having Moderate security impact and is not currently planned to be addressed in future updates. For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata/.
| Base Score | 5.1 |
|---|---|
| Base Metrics | AV:N/AC:H/Au:N/C:P/I:P/A:P |
| Access Vector | Network |
| Access Complexity | High |
| 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 7 (glibc) | RHSA-2015:2199 | 2015-11-19 |
| Red Hat Enterprise Linux Extended Update Support 7.1 (glibc) | RHSA-2015:2589 | 2015-12-09 |
| Red Hat Enterprise Linux 6 (glibc) | RHSA-2015:0863 | 2015-04-21 |
| Platform | Package | State |
|---|---|---|
| Red Hat Enterprise Linux 5 | glibc | Will not fix |
Vulmon