CVE-2021-21897: Integer Underflow
First published: Wed Sep 08 2021(Updated: )
A code execution vulnerability exists in the DL_Dxf::handleLWPolylineData functionality of Ribbonsoft dxflib 3.17.0. A specially-crafted .dxf file can lead to a heap buffer overflow. An attacker can provide a malicious file to trigger this vulnerability.
Credit: talos-cna@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| dxflib | =3.17.0 | |
| Fedora EPEL | =7.0 | |
| Fedora EPEL | =8.0 | |
| Red Hat Fedora | =35 | |
| Red Hat Fedora | =36 | |
| Red Hat Fedora | =37 | |
| Debian Linux | =9.0 |
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Reference Links
- https://lists.debian.org/debian-lts-announce/2022/06/msg00008.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/5BUOTYU3KKIYE4BEBUFA4MRS462P3OWM/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DA4C4X5GMM65VYLUW7Q7YL6P5NDB633A/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IMGMEPTYL7WTQ333J6SMC6MUHDMMWT3O/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/L2H36XRMAPQBIOVIIFX6KUT5YOG2ETM6/
- https://talosintelligence.com/vulnerability_reports/TALOS-2021-1346
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DA4C4X5GMM65VYLUW7Q7YL6P5NDB633A/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IMGMEPTYL7WTQ333J6SMC6MUHDMMWT3O/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5BUOTYU3KKIYE4BEBUFA4MRS462P3OWM/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L2H36XRMAPQBIOVIIFX6KUT5YOG2ETM6/
Frequently Asked Questions
What is the severity of CVE-2021-21897?
CVE-2021-21897 has a high severity level due to the potential for remote code execution via a specially-crafted .dxf file.
How do I fix CVE-2021-21897?
To mitigate CVE-2021-21897, update to the latest version of Ribbonsoft dxflib or apply any available patches from your Linux distribution.
What versions are affected by CVE-2021-21897?
CVE-2021-21897 specifically affects Ribbonsoft dxflib version 3.17.0 and certain versions of Fedora and Debian distributions.
What type of vulnerability is CVE-2021-21897?
CVE-2021-21897 is categorized as a code execution vulnerability that can lead to a heap buffer overflow.
Can CVE-2021-21897 be exploited remotely?
Yes, CVE-2021-21897 can be exploited remotely if an attacker sends a malicious .dxf file to a vulnerable system.
- agent/type
- collector/mitre-cve
- source/MITRE
- agent/references
- agent/severity
- agent/last-modified-date
- agent/author
- agent/weakness
- agent/description
- agent/first-publish-date
- agent/event
- agent/source
- agent/softwarecombine
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/ribbonsoft
- canonical/dxflib
- version/dxflib/3.17.0
- vendor/fedoraproject
- canonical/fedora epel
- version/fedora epel/7.0
- version/fedora epel/8.0
- canonical/red hat fedora
- version/red hat fedora/35
- version/red hat fedora/36
- version/red hat fedora/37
- vendor/debian
- canonical/debian linux
- version/debian linux/9.0