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: xdp: produce a warning when calculated tailroom is negative Many ethernet drivers report xdp Rx queue frag size as being the same as DMA write size. However, the only user of this field, namely bpf_xdp_frags_increase_tail(), clearly expects a truesize. Such difference leads to unspecific memory corruption issues under certain circumstances, e.g. in ixgbevf maximum DMA write size is 3 KB, so when running xskxceiver's XDP_ADJUST_TAIL_GROW_MULTI_BUFF, 6K packet fully uses all DMA-writable space in 2 buffers. This would be fine...
In the Linux kernel, the following vulnerability has been resolved: xdp: produce a warning when calculated tailroom is negative Many ethernet drivers report xdp Rx queue frag size as being the same as DMA write size. However, the only user of this field, namely bpf_xdp_frags_increase_tail(), clearly expects a truesize. Such difference leads to unspecific memory corruption issues under certain circumstances, e.g. in ixgbevf maximum DMA write size is 3 KB, so when running xskxceiver's XDP_ADJUST_TAIL_GROW_MULTI_BUFF, 6K packet fully uses all DMA-writable space in 2 buffers. This would be fine...
영향 제품·버전
제품 Linux Linux, SIMATIC S7-1500 CPU 1518-4 PN/DP MFP, SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP
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 >= bf25146a5595269810b1f47d048f114c5ff9f544 < 01379540452a02bbc52f639d45dd365cd3624efb, >= bf25146a5595269810b1f47d048f114c5ff9f544 < a0fb59f527d03c60b2cd547cfae4a842ad84670f, >= bf25146a5595269810b1f47d048f114c5ff9f544 < c7c790a07697148c41e2d03eb28efe132adda749, >= bf25146a5595269810b1f47d048f114c5ff9f544 < 98cd8b4d0b836d3edf70161f40efd9cbb8c8f252, >= bf25146a5595269810b1f47d048f114c5ff9f544 < 94b9da7e9f958cb3d115b21eff824ecd8c3217aa, >= bf25146a5595269810b1f47d048f114c5ff9f544 < 8821e857759be9db3cde337ad328b71fe5c8a55f, >= 5.18, >= V3.1.6, >= V3.1.5, >= 5.18.1 < 6.1.167, >= 6.2 < 6.6.130, >= 6.7 < 6.12.77, >= 6.13 < 6.18.17, >= 6.19 < 6.19.7, 5.18, 7.0)에 포함되는지 확인합니다. OS를 선택하면 해당 OS의 제품·패키지·KB·APAR 확인 명령만 표시됩니다.
조치방안
제3자 참조와 수정 버전 값(6.1.167, 6.6.130, 6.12.77, 6.18.17, 6.19.7)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 6.1.167, 6.6.130, 6.12.77, 6.18.17, 6.19.7 기준을 충족하는지 확인합니다. 이어서 메모리 손상 관련 오류·공격 흔적이 새로 발생하지 않는지 확인합니다.
