CVE-2023-52975
HighSummary
W jądrze systemu Linux zidentyfikowano podatność związana z użyciem po zwolnieniu pamięci (UAF) podczas wylogowywania sesji iSCSI, gdy inny proces uzyskuje dostęp do atrybutu adresu IP hosta. Problem ten został rozwiązany w aktualizacji.
Risk Assessment
Podatność ta może prowadzić do nieprzewidzianych zachowań systemu, w tym do awarii aplikacji lub potencjalnego przejęcia kontroli nad systemem przez złośliwy kod. Organizacje powinny być świadome ryzyka związanego z nieaktualnym jądrem systemu.
Recommendation
Zaleca się aktualizację jądra systemu Linux do najnowszej wersji, aby usunąć tę podatność i zminimalizować ryzyko związane z użyciem po zwolnieniu pamięci.
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Original NVD description (English source)
In the Linux kernel, the following vulnerability has been resolved: scsi: iscsi_tcp: Fix UAF during logout when accessing the shost ipaddress Bug report and analysis from Ding Hui. During iSCSI session logout, if another task accesses the shost ipaddress attr, we can get a KASAN UAF report like this: [ 276.942144] BUG: KASAN: use-after-free in _raw_spin_lock_bh+0x78/0xe0 [ 276.942535] Write of size 4 at addr ffff8881053b45b8 by task cat/4088 [ 276.943511] CPU: 2 PID: 4088 Comm: cat Tainted: G E 6.1.0-rc8+ #3 [ 276.943997] Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 11/12/2020 [ 276.944470] Call Trace: [ 276.944943] <TASK> [ 276.945397] dump_stack_lvl+0x34/0x48 [ 276.945887] print_address_description.constprop.0+0x86/0x1e7 [ 276.946421] print_report+0x36/0x4f [ 276.947358] kasan_report+0xad/0x130 [ 276.948234] kasan_check_range+0x35/0x1c0 [ 276.948674] _raw_spin_lock_bh+0x78/0xe0 [ 276.949989] i
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

