The TIFFWriteDirectorySec() function in tif_dirwrite.c in LibTIFF through 4.0.9 allows remote attackers to cause a denial of service (assertion failure and application crash) via a crafted file, a different vulnerability than CVE-2017-13726.
The MITRE CVE dictionary describes this issue as:
Find out more about CVE-2018-10963 from the MITRE CVE dictionary dictionary and NIST NVD.
This issue did not affect the versions of libtiff as shipped with Red Hat Enterprise Linux 5 and 6 as they did not include the vulnerable code.
NOTE: The following CVSS v3 metrics and score provided are preliminary and subject to review.
| CVSS3 Base Score | 3.3 |
|---|---|
| CVSS3 Base Metrics | CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L |
| Attack Vector | Local |
| Attack Complexity | Low |
| Privileges Required | None |
| User Interaction | Required |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity Impact | None |
| Availability Impact | Low |
| Platform | Package | State |
|---|---|---|
| Red Hat Enterprise Linux 7 | libtiff | Affected |
| Red Hat Enterprise Linux 6 | libtiff | Not affected |
| Red Hat Enterprise Linux 5 | libtiff | Not affected |
Vulmon