CVE-2026-111144
libansilove 1.3.0 through 1.4.2 NULL Pointer Dereference via ansilove_xbin
- State
- Published
- Severity
- 6.8 Medium
- Published
- Oct 15, 2026
- Updated
- Oct 26, 2026
- Reserved
- Oct 15, 2026
Description
libansilove 1.3.0 through 1.4.2 contains a NULL pointer dereference vulnerability in ansilove_xbin() that allows attackers to crash applications by supplying a crafted XBIN file. Attackers can set the 512-character flag without the custom-font flag, causing drawchar() to index a NULL high_font_data_xbin pointer and terminate the process.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.8 Medium | CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 5.5 Medium | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H | VulnCheck |
Weaknesses
- CWE-476 NULL Pointer Dereference
Affected Products
| Product | Versions |
|---|---|
libansiloveansilove |
|
References
- https://hackmd.io/@haind-pwn/libansilove-xbin-rle-oob-read-and-null-font-dereftechnical-descriptionexploit
- https://github.com/ansilove/libansilove/blob/f1b05447aa566aa4eef9b05ebf8c2aaf1e379cd3/src/loaders/xbin.c#L119-L166technical-description
- https://github.com/ansilove/libansilove/blob/f1b05447aa566aa4eef9b05ebf8c2aaf1e379cd3/src/loaders/xbin.c#L224-L232technical-description
- https://github.com/ansilove/libansilove/blob/f1b05447aa566aa4eef9b05ebf8c2aaf1e379cd3/src/drawchar.c#L28-L35technical-description
- https://github.com/ansilove/libansiloveproduct
- VulnCheck Advisory: libansilove 1.3.0 through 1.4.2 NULL Pointer Dereference via ansilove_xbinthird-party-advisory
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