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CVE-2021-39537

Public on 2021-09-20
Modified on 2024-02-05
Description

The ncurses package (tic) is susceptible to a heap overflow on crafted input. When the terminfo entry-description compiler processes input, proper bounds checking was not enforced leading to this software flaw. The highest threat from this vulnerability is system availability.

Severity
Medium
See what this means
CVSS v3 Base Score
5.5
See breakdown

Affected Packages

Platform Package Release Date Advisory
Amazon Linux 2 - Core ncurses 2022-12-01 20:31 ALAS2-2022-1893
Amazon Linux 2023 ncurses 2023-02-17 20:43 ALAS2023-2023-023

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 5.5 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
NVD CVSSv2 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P
NVD CVSSv3 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

Red Hat: CVE-2021-39537 Mitre: CVE-2021-39537 FAQs regarding Amazon Linux ALAS/CVE Severity