Integer underflow in the pixman_trapezoid_valid macro in pixman.h in Pixman before 0.32.0, as used in X.Org server and cairo, allows context-dependent attackers to cause a denial of service (crash) via a negative bottom value.
The MITRE CVE dictionary describes this issue as:
Find out more about CVE-2013-6425 from the MITRE CVE dictionary dictionary and NIST NVD.
| Base Score | 6.8 |
|---|---|
| Base Metrics | AV:N/AC:M/Au:N/C:P/I:P/A:P |
| Access Vector | Network |
| Access Complexity | Medium |
| 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 Optional Productivity Applications (v. 5 server) (pixman) | RHSA-2013:1869 | 2013-12-20 |
| Red Hat Enterprise Linux 6 (pixman) | RHSA-2013:1869 | 2013-12-20 |
| Red Hat Enterprise Linux 5 (pixman) | RHSA-2013:1869 | 2013-12-20 |
| Platform | Package | State |
|---|---|---|
| Red Hat Enterprise Linux 7 | pixman | Not affected |
| Red Hat Enterprise Linux 5 | qpixman | Not affected |
Vulmon