high
7.8
CWE
787
Advisory Published
Updated

CVE-2023-29491

First published: Fri Apr 14 2023(Updated: )

ncurses before 6.4 20230408, when used by a setuid application, allows local users to trigger security-relevant memory corruption via malformed data in a terminfo database file that is found in $HOME/.terminfo or reached via the TERMINFO or TERM environment variable.

Credit: cve@mitre.org cve@mitre.org Jonathan Bar Or MicrosoftEmanuele Cozzi Microsoft MicrosoftMichael Pearse MicrosoftJonathan Bar Or MicrosoftEmanuele Cozzi Microsoft MicrosoftMichael Pearse MicrosoftJonathan Bar Or MicrosoftEmanuele Cozzi Microsoft MicrosoftMichael Pearse Microsoft

Affected SoftwareAffected VersionHow to fix
<13.5
13.5
<12.6.8
12.6.8
Apple macOS Big Sur<11.7.9
11.7.9
GNU ncurses<6.4

Remedy

http://www.openwall.com/lists/oss-security/2023/04/19/10

Remedy

https://www.openwall.com/lists/oss-security/2023/04/13/4

Remedy

http://ncurses.scripts.mit.edu/?p=ncurses.git;a=commit;h=eb51b1ea1f75a0ec17c9c5937cb28df1e8eeec56

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Peer vulnerabilities

(Found alongside the following vulnerabilities)

Frequently Asked Questions

  • What is the vulnerability ID?

    The vulnerability ID is CVE-2023-29491.

  • What is the severity of CVE-2023-29491?

    The severity of CVE-2023-29491 is high (7.8).

  • Which software is affected by CVE-2023-29491?

    The affected software includes macOS Ventura version up to 13.5, GNU ncurses version up to 6.4, macOS Big Sur version up to 11.7.9, and macOS Monterey version up to 12.6.8.

  • How can a local user exploit CVE-2023-29491?

    A local user can exploit CVE-2023-29491 by using a setuid application and triggering security-relevant memory corruption through malformed data in a terminfo database file found in $HOME/.terminfo or reached via the TERMINFO or TERM environment variable.

  • How can I fix CVE-2023-29491?

    To fix CVE-2023-29491, it is recommended to apply the necessary updates provided by the respective vendors or follow the instructions provided in their security advisories. For macOS, refer to the Apple support page for further guidance.

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