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: bridge: br_nd_send: linearize skb before parsing ND options br_nd_send() parses neighbour discovery options from ns->opt[] and assumes that these options are in the linear part of request. Its callers only guarantee that the ICMPv6 header and target address are available, so the option area can still be non-linear. Parsing ns->opt[] in that case can access data past the linear buffer. Linearize request before option parsing and derive ns from the linear network header.
In the Linux kernel, the following vulnerability has been resolved: bridge: br_nd_send: linearize skb before parsing ND options br_nd_send() parses neighbour discovery options from ns->opt[] and assumes that these options are in the linear part of request. Its callers only guarantee that the ICMPv6 header and target address are available, so the option area can still be non-linear. Parsing ns->opt[] in that case can access data past the linear buffer. Linearize request before option parsing and derive ns from the linear network header.
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 >= ed842faeb2bd49256f00485402f3113205f91d30 < c68433fd291c9e88c00292095172c62d1997d662, >= ed842faeb2bd49256f00485402f3113205f91d30 < 4f397b950c916e9a1f8a4fce04ea0110206cad47, >= ed842faeb2bd49256f00485402f3113205f91d30 < bd91ec85aa4c77d645bd2739fc56784157a88ca2, >= ed842faeb2bd49256f00485402f3113205f91d30 < 658261898130da620fc3d0fbb0523efb3366cb55, >= ed842faeb2bd49256f00485402f3113205f91d30 < 2ba4caba423ed94d63006eb1d2227b0332ab7fcd, >= ed842faeb2bd49256f00485402f3113205f91d30 < 9c55e41c73af5c4511070933b1bd25248521270c, >= ed842faeb2bd49256f00485402f3113205f91d30 < 3a30f6469b058574f49efde61cd6f5d79e576053, >= ed842faeb2bd49256f00485402f3113205f91d30 < a01aee7cafc575bb82f5529e8734e7052f9b16ea, >= 4.15, >= V3.1.6, >= V3.1.5, >= 4.15 < 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, 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.