Bug 1326257 (CVE-2016-3658)
| Summary: | CVE-2016-3658 libtiff: out-of-bounds read in the TIFFWriteDirectoryTagLongLong8Array function | ||
|---|---|---|---|
| Product: | [Other] Security Response | Reporter: | Andrej Nemec <anemec> |
| Component: | vulnerability | Assignee: | Red Hat Product Security <security-response-team> |
| Status: | CLOSED DUPLICATE | QA Contact: | |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | unspecified | CC: | erik-fedora, 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: | 2017-05-11 10:47:46 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 | ||
External References: http://bugzilla.maptools.org/show_bug.cgi?id=2546 *** This bug has been marked as a duplicate of bug 1185805 *** Statement: This flaw was found to be a duplicate of CVE-2014-8127. Please see https://access.redhat.com/security/cve/CVE-2014-8127 for information about affected products and security errata. |
A vulnerability was found in the libtiff library. Using a tiffset command on a maliciously crafted image could result in a denial-of-service. Vulnerable code: /libtiff/tif_dirwrite.c: 1625 1623 for (q=p, ma=value, mb=0; mb<count; ma++, mb++, q++) 1624 { 1625 if (*ma>0xFFFFFFFF) 1626 { 1627 TIFFErrorExt(tif->tif_clientdata,module, 1628 "Attempt to write value larger than 0xFFFFFFFF in Classic TIFF file."); 1629 _TIFFfree(p); 1630 return(0); 1631 } 1632 *q= (uint32)(*ma); 1633 } References: http://www.openwall.com/lists/oss-security/2016/04/08/12