Linux Linux, SIMATIC S7-1500 CPU 1518-4 PN/DP MFP, SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP 취약점
In the Linux kernel, the following vulnerability has been resolved: net/x25: Fix potential double free of skb When alloc_skb fails in x25_queue_rx_frame it calls kfree_skb(skb) at line 48 and returns 1 (error). This error propagates back through the call chain: x25_queue_rx_frame returns 1 | v x25_state3_machine receives the return value 1 and takes the else branch at line 278, setting queued=0 and returning 0 | v x25_process_rx_frame returns queued=0 | v x25_backlog_rcv at line 452 sees queued=0 and calls kfree_skb(skb) again This would free the same skb twice. Looking at x25_backlog_rcv:...
In the Linux kernel, the following vulnerability has been resolved: net/x25: Fix potential double free of skb When alloc_skb fails in x25_queue_rx_frame it calls kfree_skb(skb) at line 48 and returns 1 (error). This error propagates back through the call chain: x25_queue_rx_frame returns 1 | v x25_state3_machine receives the return value 1 and takes the else branch at line 278, setting queued=0 and returning 0 | v x25_process_rx_frame returns queued=0 | v x25_backlog_rcv at line 452 sees queued=0 and calls kfree_skb(skb) again This would free the same skb twice. Looking at x25_backlog_rcv:...
영향 제품·버전
제품 Linux Linux, SIMATIC S7-1500 CPU 1518-4 PN/DP MFP, SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP
수정 버전 Linux Linux, SIMATIC S7-1500 CPU 1518-4 PN/DP MFP, SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP 5.10.253, 5.15.203, 6.1.168, 6.6.134, 6.12.81, 6.18.22, 6.19.12
Linux Linux, SIMATIC S7-1500 CPU 1518-4 PN/DP MFP, SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP의 현재 전체 버전이 공식 영향 범위(Linux Linux, SIMATIC S7-1500 CPU 1518-4 PN/DP MFP, SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 5d0aa038a90b30c9bedde0c41c1fdcd98ecb16e9, >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 3f5e3005984645bf5bd129c6b13149879580b1fb, >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < f782dd382203b2a8c4552a628431b7de65a19a7b, >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 143d4fa68ae9efb83b0c55b12cc7f0d03732a2b1, >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 524371398d8463ea7e101fce2cbf3915645d1730, >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < fa1dbc93530b34fab0da9862426fe9c918c74dc0, >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < c87dd137c0dad07cc55f98181ff380b0c23d2878, >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < d10a26aa4d072320530e6968ef945c8c575edf61, >= 2.6.12, >= V3.1.6, >= V3.1.5, >= 2.6.12.1 < 5.10.253, >= 5.11 < 5.15.203, >= 5.16 < 6.1.168, >= 6.2 < 6.6.134, >= 6.7 < 6.12.81, >= 6.13 < 6.18.22, >= 6.19 < 6.19.12, 2.6.12, 7.0)에 포함되는지 확인합니다. OS를 선택하면 해당 OS의 제품·패키지·KB·APAR 확인 명령만 표시됩니다.
조치방안
제3자 참조와 수정 버전 값(5.10.253, 5.15.203, 6.1.168, 6.6.134, 6.12.81, 6.18.22, 6.19.12)은 보조 근거로만 사용하고, 공급사 공식 보안 권고에서 조치 기준을 재확인합니다.
조치 후 확인사항
패치 후 같은 명령으로 전체 버전을 다시 확인해 Linux Linux, SIMATIC S7-1500 CPU 1518-4 PN/DP MFP, SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP 5.10.253, 5.15.203, 6.1.168, 6.6.134, 6.12.81, 6.18.22, 6.19.12 기준을 충족하는지 확인합니다. 이어서 유형 미확정 관련 오류·공격 흔적이 새로 발생하지 않는지 확인합니다.