Bug 1966272 (CVE-2020-18032)
| Summary: | CVE-2020-18032 graphviz: off-by-one in parse_reclbl() in lib/common/shapes.c | ||
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| Product: | [Other] Security Response | Reporter: | Pedro Sampaio <psampaio> |
| Component: | vulnerability | Assignee: | Red Hat Product Security <security-response-team> |
| Status: | CLOSED ERRATA | QA Contact: | |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | unspecified | CC: | alex, jskarvad, security-response-team |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | graphviz 2.46.0 | Doc Type: | If docs needed, set a value |
| Doc Text: |
A flaw was found in graphviz. A wrong assumption in record_init function leads to an off-by-one write in parse_reclbl function, allowing an attacker who can provide graph input to potentially execute code when the label of a node is invalid and shorter than two characters. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
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Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | 2021-11-09 19:22:08 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: | 1965405, 1966274, 1967690, 1967691 | ||
| Bug Blocks: | 1966273 | ||
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Description
Pedro Sampaio
2021-05-31 18:45:10 UTC
References: https://gitlab.com/graphviz/graphviz/-/issues/1700 https://lists.debian.org/debian-lts-announce/2021/05/msg00014.html https://www.debian.org/security/2021/dsa-4914 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QGY2IGARE6RZHTF2UEZEWLMQCDILFK6A/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/D5PQPHJHPU46FK3R5XBP3XDT4X37HMPC/ Created graphviz tracking bugs for this issue: Affects: fedora-all [bug 1966274] On RHEL8: $ sudo dnf repoquery --alldeps --whatrequires '*graphviz*' Updating Subscription Management repositories. Last metadata expiration check: 1:42:14 ago on Thu 03 Jun 2021 03:33:44 PM CEST. asciidoc-0:8.6.10-0.5.20180627gitf7c2274.el8.noarch graphviz-devel-0:2.40.1-39.el8.i686 graphviz-devel-0:2.40.1-39.el8.x86_64 graphviz-devel-0:2.40.1-40.el8.i686 graphviz-devel-0:2.40.1-40.el8.x86_64 graphviz-gd-0:2.40.1-39.el8.i686 graphviz-gd-0:2.40.1-39.el8.x86_64 graphviz-gd-0:2.40.1-40.el8.i686 graphviz-gd-0:2.40.1-40.el8.x86_64 graphviz-python3-0:2.40.1-40.el8.x86_64 On RHEL7: $ sudo repoquery --alldeps --whatrequires '*graphviz*' asciidoc-0:8.6.8-5.el7.noarch graphviz-devel-0:2.30.1-18.el7.i686 graphviz-devel-0:2.30.1-18.el7.x86_64 graphviz-devel-0:2.30.1-19.el7.i686 graphviz-devel-0:2.30.1-19.el7.x86_64 graphviz-devel-0:2.30.1-21.el7.i686 graphviz-devel-0:2.30.1-21.el7.x86_64 graphviz-devel-0:2.30.1-22.el7.i686 graphviz-devel-0:2.30.1-22.el7.x86_64 graphviz-gd-0:2.30.1-18.el7.i686 graphviz-gd-0:2.30.1-18.el7.x86_64 graphviz-gd-0:2.30.1-19.el7.i686 graphviz-gd-0:2.30.1-19.el7.x86_64 graphviz-gd-0:2.30.1-21.el7.i686 graphviz-gd-0:2.30.1-21.el7.x86_64 graphviz-gd-0:2.30.1-22.el7.i686 graphviz-gd-0:2.30.1-22.el7.x86_64 graphviz-guile-0:2.30.1-18.el7.x86_64 graphviz-guile-0:2.30.1-19.el7.x86_64 graphviz-guile-0:2.30.1-21.el7.x86_64 graphviz-guile-0:2.30.1-22.el7.x86_64 graphviz-java-0:2.30.1-18.el7.x86_64 graphviz-java-0:2.30.1-19.el7.x86_64 graphviz-java-0:2.30.1-21.el7.x86_64 graphviz-java-0:2.30.1-22.el7.x86_64 graphviz-lua-0:2.30.1-18.el7.x86_64 graphviz-lua-0:2.30.1-19.el7.x86_64 graphviz-lua-0:2.30.1-21.el7.x86_64 graphviz-lua-0:2.30.1-22.el7.x86_64 graphviz-ocaml-0:2.30.1-18.el7.x86_64 graphviz-ocaml-0:2.30.1-19.el7.x86_64 graphviz-ocaml-0:2.30.1-21.el7.x86_64 graphviz-ocaml-0:2.30.1-22.el7.x86_64 graphviz-perl-0:2.30.1-18.el7.x86_64 graphviz-perl-0:2.30.1-19.el7.x86_64 graphviz-perl-0:2.30.1-21.el7.x86_64 graphviz-perl-0:2.30.1-22.el7.x86_64 graphviz-php-0:2.30.1-18.el7.x86_64 graphviz-php-0:2.30.1-19.el7.x86_64 graphviz-php-0:2.30.1-21.el7.x86_64 graphviz-php-0:2.30.1-22.el7.x86_64 graphviz-python-0:2.30.1-18.el7.x86_64 graphviz-python-0:2.30.1-19.el7.x86_64 graphviz-python-0:2.30.1-21.el7.x86_64 graphviz-python-0:2.30.1-22.el7.x86_64 graphviz-ruby-0:2.30.1-18.el7.x86_64 graphviz-ruby-0:2.30.1-19.el7.x86_64 graphviz-ruby-0:2.30.1-21.el7.x86_64 graphviz-ruby-0:2.30.1-22.el7.x86_64 graphviz-tcl-0:2.30.1-18.el7.i686 graphviz-tcl-0:2.30.1-18.el7.x86_64 graphviz-tcl-0:2.30.1-19.el7.i686 graphviz-tcl-0:2.30.1-19.el7.x86_64 graphviz-tcl-0:2.30.1-21.el7.i686 graphviz-tcl-0:2.30.1-21.el7.x86_64 graphviz-tcl-0:2.30.1-22.el7.i686 graphviz-tcl-0:2.30.1-22.el7.x86_64 ibutils-0:1.5.7-9.el7.x86_64 ibutils-0:1.5.7-12.el7.x86_64 ibutils-0:1.5.7-13.el7.x86_64 ibutils-0:1.5.7-14.el7.x86_64 pprof-0:2.4-7.el7.noarch pprof-0:2.4-8.el7.noarch pprof-0:2.6.1-1.el7.noarch valadoc-0:0.40.8-1.el7.i686 valadoc-0:0.40.8-1.el7.x86_64 valadoc-devel-0:0.40.8-1.el7.i686 valadoc-devel-0:0.40.8-1.el7.x86_64 Within RHEL graphviz is only used for local applications. Moreover, in RHEL8 graphviz-devel is only part of CodeReady Builder, while in RHEL7 it is part of the Optional repository. For these reasons Moderate Impact seems more appropriate even though this is a buffer overflow. Upstream patch: https://gitlab.com/graphviz/graphviz/-/commit/784411ca3655c80da0f6025ab20634b2a6ff696b This issue has been addressed in the following products: Red Hat Enterprise Linux 8 Via RHSA-2021:4256 https://access.redhat.com/errata/RHSA-2021:4256 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-2020-18032 |