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: RDMA/siw: Fix potential NULL pointer dereference in header processing If siw_get_hdr() returns -EINVAL before set_rx_fpdu_context(), qp->rx_fpdu can be NULL. The error path in siw_tcp_rx_data() dereferences qp->rx_fpdu->more_ddp_segs without checking, which may lead to a NULL pointer deref. Only check more_ddp_segs when rx_fpdu is present. KASAN splat: [ 101.384271] KASAN: null-ptr-deref in range [0x00000000000000c0-0x00000000000000c7] [ 101.385869] RIP: 0010:siw_tcp_rx_data+0x13ad/0x1e50
In the Linux kernel, the following vulnerability has been resolved: RDMA/siw: Fix potential NULL pointer dereference in header processing If siw_get_hdr() returns -EINVAL before set_rx_fpdu_context(), qp->rx_fpdu can be NULL. The error path in siw_tcp_rx_data() dereferences qp->rx_fpdu->more_ddp_segs without checking, which may lead to a NULL pointer deref. Only check more_ddp_segs when rx_fpdu is present. KASAN splat: [ 101.384271] KASAN: null-ptr-deref in range [0x00000000000000c0-0x00000000000000c7] [ 101.385869] RIP: 0010:siw_tcp_rx_data+0x13ad/0x1e50
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 5.10.252, 5.15.202, 6.1.165, 6.6.128, 6.12.75, 6.18.14, 6.19.4
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 >= 8b6a361b8c482f22ac99c3273285ff16b23fba91 < ab61841633d10e56a58c1493a262f0d02dba2f5e, >= 8b6a361b8c482f22ac99c3273285ff16b23fba91 < 8564dcc12fbb372d984ab45768cae9335777b274, >= 8b6a361b8c482f22ac99c3273285ff16b23fba91 < ab957056192d6bd068b3759cb2077d859cca01f0, >= 8b6a361b8c482f22ac99c3273285ff16b23fba91 < ffba40b67663567481fa8a1ed5d2da36897c175d, >= 8b6a361b8c482f22ac99c3273285ff16b23fba91 < 87b7a036d2c73d5bb3ae2d47dee23de465db3355, >= 8b6a361b8c482f22ac99c3273285ff16b23fba91 < 714c99e1dc8f85f446e05be02ba83972e981a817, >= 8b6a361b8c482f22ac99c3273285ff16b23fba91 < ce025f7f5d070596194315eb2e4e89d568b8a755, >= 8b6a361b8c482f22ac99c3273285ff16b23fba91 < 14ab3da122bd18920ad57428f6cf4fade8385142, >= 5.3, >= V3.1.6, >= V3.1.5, >= 5.3.1 < 5.10.252, >= 5.11 < 5.15.202, >= 5.16 < 6.1.165, >= 6.2 < 6.6.128, >= 6.7 < 6.12.75, >= 6.13 < 6.18.14, >= 6.19 < 6.19.4, 5.3)에 포함되는지 확인합니다. OS를 선택하면 해당 OS의 제품·패키지·KB·APAR 확인 명령만 표시됩니다.
조치방안
제3자 참조와 수정 버전 값(5.10.252, 5.15.202, 6.1.165, 6.6.128, 6.12.75, 6.18.14, 6.19.4)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 5.10.252, 5.15.202, 6.1.165, 6.6.128, 6.12.75, 6.18.14, 6.19.4 기준을 충족하는지 확인합니다. 이어서 메모리 손상 관련 오류·공격 흔적이 새로 발생하지 않는지 확인합니다.
