Linux Linux, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8 취약점
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: l2cap: Add missing chan lock in l2cap_ecred_reconf_rsp l2cap_ecred_reconf_rsp() calls l2cap_chan_del() without holding l2cap_chan_lock(). Every other l2cap_chan_del() caller in the file acquires the lock first. A remote BLE device can send a crafted L2CAP ECRED reconfiguration response to corrupt the channel list while another thread is iterating it. Add l2cap_chan_hold() and l2cap_chan_lock() before l2cap_chan_del(), and l2cap_chan_unlock() and l2cap_chan_put() after, matching the pattern used in l2cap_ecred_con...
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: l2cap: Add missing chan lock in l2cap_ecred_reconf_rsp l2cap_ecred_reconf_rsp() calls l2cap_chan_del() without holding l2cap_chan_lock(). Every other l2cap_chan_del() caller in the file acquires the lock first. A remote BLE device can send a crafted L2CAP ECRED reconfiguration response to corrupt the channel list while another thread is iterating it. Add l2cap_chan_hold() and l2cap_chan_lock() before l2cap_chan_del(), and l2cap_chan_unlock() and l2cap_chan_put() after, matching the pattern used in l2cap_ecred_con...
영향 제품·버전
제품 Linux Linux, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8
영향 버전 Linux Linux, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8 >= 15f02b91056253e8cdc592888f431da0731337b8 < 96dca51715d86559ed6ed8028e5445cecb80f3ae, >= 15f02b91056253e8cdc592888f431da0731337b8 < 330b20ec97916961ee0e6c29c06bc0fa7c96e64c, >= 15f02b91056253e8cdc592888f431da0731337b8 < 0ccd75c51f620374086f359e906917676e699a1c, >= 15f02b91056253e8cdc592888f431da0731337b8 < 77a853aec710b2fdf41fa298ea3cbc9a4358f917, >= 15f02b91056253e8cdc592888f431da0731337b8 < fe1188abdae9b7a8199dcdfcf9244d5e5d61eb14, >= 15f02b91056253e8cdc592888f431da0731337b8 < dc89961b76f12aff47124c1df4bdb32a080f4d0c, >= 15f02b91056253e8cdc592888f431da0731337b8 < 5501d055a1ce3c747141e3955ba8cf034d193f3e, >= 15f02b91056253e8cdc592888f431da0731337b8 < 42776497cdbc9a665b384a6dcb85f0d4bd927eab, >= 5.7, >= 5.7 < 5.10.258, >= 5.11 < 5.15.209, >= 5.16 < 6.1.175, >= 6.2 < 6.6.141, >= 6.7 < 6.12.91, >= 6.13 < 6.18.33, >= 6.19 < 7.0.10
수정 버전 Linux Linux, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8 5.10.258, 5.15.209, 6.1.175, 6.6.141, 6.12.91, 6.18.33, 7.0.10
Linux Linux, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8의 현재 전체 버전이 공식 영향 범위(Linux Linux, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8 >= 15f02b91056253e8cdc592888f431da0731337b8 < 96dca51715d86559ed6ed8028e5445cecb80f3ae, >= 15f02b91056253e8cdc592888f431da0731337b8 < 330b20ec97916961ee0e6c29c06bc0fa7c96e64c, >= 15f02b91056253e8cdc592888f431da0731337b8 < 0ccd75c51f620374086f359e906917676e699a1c, >= 15f02b91056253e8cdc592888f431da0731337b8 < 77a853aec710b2fdf41fa298ea3cbc9a4358f917, >= 15f02b91056253e8cdc592888f431da0731337b8 < fe1188abdae9b7a8199dcdfcf9244d5e5d61eb14, >= 15f02b91056253e8cdc592888f431da0731337b8 < dc89961b76f12aff47124c1df4bdb32a080f4d0c, >= 15f02b91056253e8cdc592888f431da0731337b8 < 5501d055a1ce3c747141e3955ba8cf034d193f3e, >= 15f02b91056253e8cdc592888f431da0731337b8 < 42776497cdbc9a665b384a6dcb85f0d4bd927eab, >= 5.7, >= 5.7 < 5.10.258, >= 5.11 < 5.15.209, >= 5.16 < 6.1.175, >= 6.2 < 6.6.141, >= 6.7 < 6.12.91, >= 6.13 < 6.18.33, >= 6.19 < 7.0.10)에 포함되는지 확인합니다. OS를 선택하면 해당 OS의 제품·패키지·KB·APAR 확인 명령만 표시됩니다.
조치방안
제3자 참조와 수정 버전 값(5.10.258, 5.15.209, 6.1.175, 6.6.141, 6.12.91, 6.18.33, 7.0.10)은 보조 근거로만 사용하고, 공급사 공식 보안 권고에서 조치 기준을 재확인합니다.
조치 후 확인사항
패치 후 같은 명령으로 전체 버전을 다시 확인해 Linux Linux, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8 5.10.258, 5.15.209, 6.1.175, 6.6.141, 6.12.91, 6.18.33, 7.0.10 기준을 충족하는지 확인합니다. 이어서 메모리 손상 관련 오류·공격 흔적이 새로 발생하지 않는지 확인합니다.
