CVE-2023-53676
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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.32%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.32% probability · 24th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-787
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/0cac6cbb9908309352a5d30c1876882771d3da50Patch
- https://git.kernel.org/stable/c/114b44dddea1f8f99576de3c0e6e9059012002fcPatch
- https://git.kernel.org/stable/c/2cbe6a88fbdd6e8aeab358eef61472e2de43d6f6Patch
- https://git.kernel.org/stable/c/4738bf8b2d3635c2944b81b2a84d97b8c8b0978dPatch
- https://git.kernel.org/stable/c/5353df78c22623b42a71d51226d228a8413097e2Patch
- https://git.kernel.org/stable/c/801f287c93ff95582b0a2d2163f12870a2f076d4Patch
- https://git.kernel.org/stable/c/bbe3ff47bf09db8956bc2eeb49d2d514d256ad2aPatch
- https://git.kernel.org/stable/c/df349e84c2cb0dd05d98c8e1189c26ab4b116083Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.