Bug 1891612 (CVE-2020-25666)
| Summary: | CVE-2020-25666 ImageMagick: outside the range of representable values of type int and signed integer overflow in MagickCore/histogram.c | ||
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| Product: | [Other] Security Response | Reporter: | Guilherme de Almeida Suckevicz <gsuckevi> |
| Component: | vulnerability | Assignee: | Red Hat Product Security <security-response-team> |
| Status: | CLOSED WONTFIX | QA Contact: | |
| Severity: | low | Docs Contact: | |
| Priority: | low | ||
| Version: | unspecified | CC: | fedora, jhorak, mike, pahan, rhel8-maint, security-response-team, stransky |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | ImageMagick 7.0.9-0 | Doc Type: | If docs needed, set a value |
| Doc Text: |
There are 4 places in HistogramCompare() in MagickCore/histogram.c where an integer overflow is possible during simple math calculations. This occurs in the rgb values and `count` value for a color. The patch uses casts to `ssize_t` type for these calculations, instead of `int`. This flaw could impact application reliability in the event that ImageMagick processes a crafted input file.
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Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | 2020-11-24 23:34:01 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: | 1901229, 1901230, 1910562 | ||
| Bug Blocks: | 1891602 | ||
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Description
Guilherme de Almeida Suckevicz
2020-10-26 20:20:12 UTC
Flaw summary: There are 4 places in HistogramCompare() in MagickCore/histogram.c where an integer overflow is possible during simple math calculations. This occurs in the rgb values and `count` value for a color. The patch uses casts to `ssize_t` type for these calculations, instead of `int`. This flaw could impact application reliability in the event that ImageMagick processes a crafted input file. Acknowledgments: Name: Suhwan Song (Seoul National University) Statement: This flaw is out of support scope for Red Hat Enterprise Linux 5, 6, and 7. Inkscape is not affected because it no longer uses a bundled ImageMagick in Red Hat Enterprise Linux 8. For more information regarding support scopes, please see https://access.redhat.com/support/policy/updates/errata . Created ImageMagick tracking bugs for this issue: Affects: epel-8 [bug 1901229] Affects: fedora-all [bug 1901230] This bug is now closed. Further updates for individual products will be reflected on the CVE page(s): https://access.redhat.com/security/cve/cve-2020-25666 |