CVE-2021-3561

Severity: high (CVSS 7.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.2% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2021-05-26 · updated 2026-06-17
Weakness: CWE-119

Description

An Out of Bounds flaw was found fig2dev version 3.2.8a. A flawed bounds check in read_objects() could allow an attacker to provide a crafted malicious input causing the application to either crash or in some cases cause memory corruption. The highest threat from this vulnerability is to integrity as well as system availability.

Affected products

Debian Linux: 9.0
Fedoraproject Fedora: 33, 34
xfig fig2dev: 3.2.8-a

References

https://bugzilla.redhat.com/show_bug.cgi?id=1955675
https://lists.debian.org/debian-lts-announce/2021/10/msg00002.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/C44WSY5KAQXC3Y2NMSVXXZS3M5U5U2E6/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JKMOIQX6GULVSYXLYW5JQY6KJNTWV3E4/
https://sourceforge.net/p/mcj/fig2dev/ci/6827c09d2d6491cb2ae3ac7196439ff3aa791fd9/
https://sourceforge.net/p/mcj/tickets/116/
https://bugzilla.redhat.com/show_bug.cgi?id=1955675
https://lists.debian.org/debian-lts-announce/2021/10/msg00002.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/C44WSY5KAQXC3Y2NMSVXXZS3M5U5U2E6/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JKMOIQX6GULVSYXLYW5JQY6KJNTWV3E4/
https://sourceforge.net/p/mcj/fig2dev/ci/6827c09d2d6491cb2ae3ac7196439ff3aa791fd9/
https://sourceforge.net/p/mcj/tickets/116/

Get alerted when CVE-2021-3561 or the next vulnerability affects your stack