| 标题 | Tomato by Shibby Tomato Firmware 1.28 Stack-based Buffer Overflow |
|---|
| 描述 | All three apcupsd CGI programs share a common getupsvar() function that retrieves UPS status data from the apcupsd daemon via TCP port 3551. For 31 out of 37 recognized field names (those with internal flag v11 == 1), the function extracts the field value using:
sscanf(line_ptr, "%*s %*s %s", caller_buffer);
The %s format specifier has no field-width limiter and writes unlimited bytes until whitespace. The caller-supplied buffer size parameter (a4) is present in the function signature but completely ignored in this code path. Typical callers pass 64-byte stack buffers. |
|---|
| 来源 | ⚠️ https://gitee.com/Fengyi-Wang/CVE/issues/IJTQ5M |
|---|
| 用户 | Anonymous User |
|---|
| 提交 | 2026-06-10 15時53分 (1 月前) |
|---|
| 管理 | 2026-07-12 23時01分 (1 month later) |
|---|
| 状态 | 已接受 |
|---|
| VulDB条目 | 377894 [Shibby Tomato 直到 1.28.0000 apcupsd tomatodata.cgi getupsvar 字段 内存损坏] |
|---|
| 积分 | 20 |
|---|