CVE-2024-32487
Published: April 15, 2024Last modified: June 5, 2025
Description
less through 653 allows OS command execution via a newline character in the name of a file, because quoting is mishandled in filename.c. Exploitation typically requires use with attacker-controlled file names, such as the files extracted from an untrusted archive. Exploitation also requires the LESSOPEN environment variable, but this is set by default in many common cases.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 8.6 |
| Attack Vector | LOCAL |
| Attack complexity | LOW |
| Privileges required | NONE |
| User interaction | REQUIRED |
| Scope | CHANGED |
| Confidentiality | HIGH |
| Integrity impact | HIGH |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | less | Unknown (608-r0) |
| Stream | less | Unknown (608-r1) |
References
- http://www.openwall.com/lists/oss-security/2024/04/15/1
- https://github.com/gwsw/less/commit/007521ac3c95bc76e3d59c6dbfe75d06c8075c33
- https://lists.debian.org/debian-lts-announce/2024/05/msg00018.html
- https://security.netapp.com/advisory/ntap-20240605-0009/
- https://www.openwall.com/lists/oss-security/2024/04/12/5
- https://www.openwall.com/lists/oss-security/2024/04/13/2