Critical severity · published Aug 14, 2023
CVE-2023-40359
xterm before 380 supports ReGIS reporting for character-set names even if they have unexpected characters (i.e., neither alphanumeric nor underscore), aka a pointer/overflow issue
9.8
CVSS
0.9%
EPSS
No
On KEV
Description
xterm before 380 supports ReGIS reporting for character-set names even if they have unexpected characters (i.e., neither alphanumeric nor underscore), aka a pointer/overflow issue. This can only occur for xterm installations that are configured at compile time to use a certain experimental feature.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 58% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
XT
Xterm · Invisible-island
before 380 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-40359
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-40359
Release Notes
https://invisible-island.net/xterm/xterm.log.html#xterm_380
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