Vulnerability · Published Aug 14, 2023 · Assigned by mitre
CVE-2023-40359
Critical 9.8
In plain English
A critical-severity security flaw in the xterm package (Debian). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.9% (higher than 59% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)9.8Critical
Exploit odds (30 days)0.9%top 41.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | xterm | no fix listed | DEBIAN-CVE-2023-40359 |
| Debian:13 | xterm | 382-2 | DEBIAN-CVE-2023-40359 |
| Debian:14 | xterm | 382-2 | DEBIAN-CVE-2023-40359 |
| Ubuntu:22.04:LTS | xterm | no fix listed | UBUNTU-CVE-2023-40359 |