Mozilla Firefox before 32.0, Firefox ESR 31.x before 31.1, and Thunderbird 31.x before 31.1 do not properly initialize memory for GIF rendering, which allows remote attackers to obtain sensitive information from process memory via crafted web script that interacts with a CANVAS element associated with a malformed GIF image.
The MITRE CVE dictionary describes this issue as:
Find out more about CVE-2014-1564 from the MITRE CVE dictionary dictionary and NIST NVD.
This issue does not affect the version of firefox and thunderbird as shipped with Red Hat Enterprise Linux 5, 6 and 7.
NOTE: The following CVSS v2 metrics and score provided are preliminary and subject to review.
| Base Score | 4.3 |
|---|---|
| Base Metrics | AV:N/AC:M/Au:N/C:P/I:N/A:N |
| Access Vector | Network |
| Access Complexity | Medium |
| Authentication | None |
| 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 | firefox | Not affected |
| Red Hat Enterprise Linux 6 | firefox | Not affected |
| Red Hat Enterprise Linux 6 | thunderbird | Not affected |
| Red Hat Enterprise Linux 5 | firefox | Not affected |
| Red Hat Enterprise Linux 5 | thunderbird | Not affected |
Vulmon