CVE-2023-53676High· 8.8▾ TwilightIn the Linux kernel, the following vulnerability has been resolved: scsi: target: iscsi: Fix buffer overflow in lio_target_nacl_info_show() The function lio_target_nacl_info_show() uses sprintf() in a loop to print details for every iS…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 48.4 · likelihood 0.1 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Oct 15.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
0.3%
0.3% → 0.3%
In the Linux kernel, the following vulnerability has been resolved:
scsi: target: iscsi: Fix buffer overflow in lio_target_nacl_info_show()
The function lio_target_nacl_info_show() uses sprintf() in a loop to print details for every iSCSI connection in a session without checking for the buffer length. With enough iSCSI connections it's possible to overflow the buffer provided by configfs and corrupt the memory.
This patch replaces sprintf() with sysfs_emit_at() that checks for buffer boundries.
linux_kernel >= 3.1, < 4.14.326linux_kernel >= 4.15, < 4.19.295linux_kernel >= 4.20, < 5.4.257linux_kernel >= 5.5, < 5.10.197linux_kernel >= 5.11, < 5.15.133linux_kernel >= 5.16, < 6.1.55linux_kernel >= 6.2, < 6.5.5Upgrade past the affected range:
linux_kernel 6.5.5Connected by shared product, vendor, weakness, or advisory.
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