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CVE-2023-29491

HIGH
7.8
CVSS Score
Published: April 14, 2023 at 12:00 AM UTC
Updated: October 14, 2026 at 11:17 PM UTC
1 product affected across 1 vendorNcurses

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Severity
HIGH7.8
Exploit prediction
EPSS 1.0%
SSVC
No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Ncurses· Invisible Island
95%
v < 6.4
Affected range stops below 6.4, so it looks safe — our inference, not a vendor statement

References (14)

Source: [email protected]
http://ncurses.scripts.mit.edu/?p=ncurses.git%3Ba=commit%3Bh=eb51b1ea1f75a0ec17c9c5937cb28df1e8eeec56
Mailing ListPatchThird Party Advisory
Source: [email protected]
http://www.openwall.com/lists/oss-security/2023/04/19/10
Mailing ListExploitThird Party Advisory
Source: [email protected]
http://www.openwall.com/lists/oss-security/2023/04/19/11
Mailing List
Source: [email protected]
https://lists.debian.org/debian-lts-announce/2023/12/msg00004.html
Vendor Advisory
Source: [email protected]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LU4MYMKFEZQ5VSCVLRIZGDQOUW3T44GT/
Source: [email protected]
https://security.netapp.com/advisory/ntap-20230517-0009/
Source: [email protected]
https://support.apple.com/kb/HT213843
Source: [email protected]
https://support.apple.com/kb/HT213844

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.8HIGH[email protected]
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-787

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