Bug 1326267 (CVE-2016-3634)
| Summary: | CVE-2016-3634 libtiff: out-of-bounds read in the tagCompare function | ||
|---|---|---|---|
| Product: | [Other] Security Response | Reporter: | Andrej Nemec <anemec> |
| Component: | vulnerability | Assignee: | Red Hat Product Security <security-response-team> |
| Status: | CLOSED NOTABUG | QA Contact: | |
| Severity: | low | Docs Contact: | |
| Priority: | low | ||
| Version: | unspecified | CC: | amaris, erik-fedora, nforro, phracek, slawomir |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2017-05-12 06:26:26 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | |||
| Bug Blocks: | 1316881 | ||
*** Bug 1316876 has been marked as a duplicate of this bug. *** Statement: This issue did not affect the versions of libtiff as shipped with Red Hat Enterprise Linux 5, 6 and 7. This issue did not affect the versions of compat-libtiff3 as shipped with Red Hat Enterprise Linux 7. |
A vulnerability was found in the libtiff library. Using the tagCompare function with the thumbnail command on a maliciously crafted tif file could cause the application to crash. Vulnerable code: /libtiff/tif_dirinfo.c: 341 tagCompare(const void* a, const void* b) 337{ 338 const TIFFField* ta = *(const TIFFField**) a; 339 const TIFFField* tb = *(const TIFFField**) b; 340 /* NB: be careful of return values for 16-bit platforms */ 341 if (ta->field_tag != tb->field_tag) 342 return (int)ta->field_tag - (int)tb->field_tag; 343 else 344 return (ta->field_type == TIFF_ANY) ? 345 0 : ((int)tb->field_type - (int)ta->field_type); 346} References: http://www.openwall.com/lists/oss-security/2016/04/08/13