Bug 1870171 (CVE-2020-16299)
Summary: | CVE-2020-16299 ghostscript: division by zero in bj10v_print_page() in contrib/japanese/gdev10v.c could result in a DoS | ||
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Product: | [Other] Security Response | Reporter: | Michael Kaplan <mkaplan> |
Component: | vulnerability | Assignee: | Red Hat Product Security <security-response-team> |
Status: | CLOSED ERRATA | QA Contact: | |
Severity: | medium | Docs Contact: | |
Priority: | medium | ||
Version: | unspecified | CC: | amasferr, chazlett, deekej, jlyle, mosvald, twaugh, zdohnal |
Target Milestone: | --- | Keywords: | Security |
Target Release: | --- | ||
Hardware: | All | ||
OS: | Linux | ||
Whiteboard: | |||
Fixed In Version: | ghostscript 9.51 | Doc Type: | If docs needed, set a value |
Doc Text: | Story Points: | --- | |
Clone Of: | Environment: | ||
Last Closed: | 2021-05-18 20:35:08 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: | 1870172, 1871262, 1871263 | ||
Bug Blocks: | 1870273 |
Description
Michael Kaplan
2020-08-19 13:23:54 UTC
Created ghostscript tracking bugs for this issue: Affects: fedora-all [bug 1870172] Flaw summary: A division by zero could occur in /contrib/japanese/gdev10v.c at the line: count = ((out_end - (outl + 1)) / bytes_per_column) * bytes_per_column; If bytes_per_column is 0 as designated by crafted yres input from a file manipulated by an attacker, this will cause a divide-by-zero exception and crash the program. It is not immediately clear how the linked patch fixes this, as I do not see the patched function in the backtrace and the patched functionality is in a different file. Mitigation: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability. This issue has been addressed in the following products: Red Hat Enterprise Linux 8 Via RHSA-2021:1852 https://access.redhat.com/errata/RHSA-2021:1852 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-2020-16299 |