| タイトル | Tomato by Shibby Tomato Firmware Tomato v1.28 RT-N5x MIPSR2 build 124 Mini Stack out-of-bounds write |
|---|
| 説明 | setup_conntrack reads ct_tcp_timeout from NVRAM. If the NVRAM value is absent or does not parse as 10 unsigned integers, the function falls back to reading TCP conntrack timeout values from procfs and formats them into a fixed 72-byte stack buffer.
char buf[72];
v11 = read_conntrack_timeout("tcp", "established");
v12 = read_conntrack_timeout("tcp", "syn_sent");
v13 = read_conntrack_timeout("tcp", "syn_recv");
v14 = read_conntrack_timeout("tcp", "fin_wait");
v15 = read_conntrack_timeout("tcp", "time_wait");
v16 = read_conntrack_timeout("tcp", "close");
v17 = read_conntrack_timeout("tcp", "close_wait");
v18 = read_conntrack_timeout("tcp", "last_ack");
sprintf(buf, "0 %u %u %u %u %u %u %u %u 0",
v11, v12, v13, v14, v15, v16, v17, v18);
nvram_set("ct_tcp_timeout", buf);
In the worst case, the formatted output is approximately 92 bytes, exceeding the 72-byte destination buffer. |
|---|
| ソース | ⚠️ https://gitee.com/Fengyi-Wang/CVE/issues/IJTQ5S |
|---|
| ユーザー | Cormac315 (UID 97273) |
|---|
| 送信 | 2026年06月10日 16:18 (1 月 ago) |
|---|
| モデレーション | 2026年07月17日 16:14 (1 month later) |
|---|
| ステータス | 承諾済み |
|---|
| VulDBエントリ | 379799 [Shibby Tomato 1.28 RT-N5x MIPSR2 Build 124 /sbin/rc setup_conntrack ct_tcp_timeout メモリ破損] |
|---|
| ポイント | 20 |
|---|