Bug 1992793 (CVE-2020-21684) - CVE-2020-21684 transfig: A global buffer overflow in the put_font in genpict2e.c could result in a denial of service
Summary: CVE-2020-21684 transfig: A global buffer overflow in the put_font in genpict2...
Keywords:
Status: NEW
Alias: CVE-2020-21684
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
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Depends On: 2000747 2000745
Blocks: 1992794
TreeView+ depends on / blocked
 
Reported: 2021-08-11 18:18 UTC by Michael Kaplan
Modified: 2021-10-31 23:29 UTC (History)
6 users (show)

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Description Michael Kaplan 2021-08-11 18:18:45 UTC
A global buffer overflow in the put_font in genpict2e.c of fig2dev 3.2.7b allows attackers to cause a denial of service (DOS) via converting a xfig file into pict2e format.

Reference:

https://sourceforge.net/p/mcj/tickets/75/

Comment 1 Garrett Tucker 2021-09-02 19:27:21 UTC
Due to the inability for the exploit to cause arbitrary code execution or to read arbitrary memory, this does not impact confidentiality or integrity. The outcome of this exploit is only a DoS affecting availability of the program by causing a total crash and inability for the program to recover. As such the CVSS score should be rescored to AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H to accurately reflect the impact of this vulnerability.


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