An invalid grid size during QCMS (color profile) transformations can result in the out-of-bounds read interpreted as a float value. This could leak private data into the output. This vulnerability affects Thunderbird < 60, Thunderbird < 52.9, Firefox ESR < 60.1, Firefox ESR < 52.9, and Firefox < 61.
The MITRE CVE dictionary describes this issue as:
Find out more about CVE-2018-12366 from the MITRE CVE dictionary dictionary and NIST NVD.
| CVSS3 Base Score | 6.1 |
|---|---|
| CVSS3 Base Metrics | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| Attack Vector | Network |
| Attack Complexity | Low |
| Privileges Required | None |
| User Interaction | Required |
| Scope | Changed |
| Confidentiality | Low |
| Integrity Impact | Low |
| Availability Impact | None |
| Platform | Errata | Release Date |
|---|---|---|
| Red Hat Enterprise Linux 7 (firefox) | RHSA-2018:2113 | 2018-06-28 |
| Red Hat Enterprise Linux 7 (thunderbird) | RHSA-2018:2252 | 2018-07-24 |
| Red Hat Enterprise Linux 6 (thunderbird) | RHSA-2018:2251 | 2018-07-24 |
| Red Hat Enterprise Linux 6 (firefox) | RHSA-2018:2112 | 2018-06-28 |
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