Multiple integer overflows in the (1) cvt_by_strip and (2) cvt_by_tile functions in the tiff2rgba tool in LibTIFF 4.0.6 and earlier, when -b mode is enabled, allow remote attackers to cause a denial of service (crash) or execute arbitrary code via a crafted TIFF image, which triggers an out-of-bounds write.
The MITRE CVE dictionary describes this issue as:
Find out more about CVE-2016-3945 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 |
| CVSS3 Base Score | 5.3 |
|---|---|
| CVSS3 Base Metrics | CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L |
| Attack Vector | Local |
| Attack Complexity | Low |
| Privileges Required | None |
| User Interaction | Required |
| Scope | Unchanged |
| Confidentiality | Low |
| Integrity Impact | Low |
| Availability Impact | Low |
Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).
| Platform | Errata | Release Date |
|---|---|---|
| Red Hat Enterprise Linux 6 (libtiff) | RHSA-2016:1547 | 2016-08-02 |
| Red Hat Enterprise Linux 7 (libtiff) | RHSA-2016:1546 | 2016-08-02 |
| Platform | Package | State |
|---|---|---|
| Red Hat Enterprise Linux 7 | compat-libtiff3 | Will not fix |
| Red Hat Enterprise Linux 5 | libtiff | Will not fix |
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