01 Record

CVE-2024-50283

ksmbd: fix slab-use-after-free in smb3_preauth_hash_rsp

CriticalPUBLISHEDCNA: Linux

CNA base score9.8 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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02 Description

ksmbd: fix slab-use-after-free in smb3_preauth_hash_rsp

03 Exploitation and scoring

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.62% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 49.7% of scored records. A rank, not a probability.

NVD base score

7.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-08-04.

Red Hat severity

Important. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2024-11-19 01:30Z1 YR AGO

Last updated

2026-08-05 11:43Z2 MO AGO

Reserved

2024-10-21

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Critical (CVSS 9.8)

CNA CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses

CWE-416Use After FreeVariant

Data version

5.2

Document digest

b15cc076c092e9cca045da6f26f5080d564aa77d78666d5ad37b31e6a5b8217f

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux0626e6641f6b467447c81dd7678a69c66f7746cf to < cb645064e0811053c94e86677f2e58ed29359d62, 0626e6641f6b467447c81dd7678a69c66f7746cf to < f7557bbca40d4ca8bb1c6c940ac6c95078bd0827, 0626e6641f6b467447c81dd7678a69c66f7746cf to < c6cdc08c25a868a08068dfc319fa9fce982b8e7f, 0626e6641f6b467447c81dd7678a69c66f7746cf to < 1b6ad475d4ed577d34e0157eb507be00c588bf5c, 0626e6641f6b467447c81dd7678a69c66f7746cf to < b8fc56fbca7482c1e5c0e3351c6ae78982e25ada, 5.15—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/cb645064e0811053c94e86677f2e58ed29359d62
git.kernel.orghttps://git.kernel.org/stable/c/f7557bbca40d4ca8bb1c6c940ac6c95078bd0827
git.kernel.orghttps://git.kernel.org/stable/c/c6cdc08c25a868a08068dfc319fa9fce982b8e7f
git.kernel.orghttps://git.kernel.org/stable/c/1b6ad475d4ed577d34e0157eb507be00c588bf5c
git.kernel.orghttps://git.kernel.org/stable/c/b8fc56fbca7482c1e5c0e3351c6ae78982e25ada
lists.debian.orghttps://lists.debian.org/debian-lts-announce/2025/01/msg00001.html

07 Fixed in

Debian 12

linux
Fixed in 6.1.119-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

linux
Fixed in 6.11.9-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

linux
Fixed in 6.11.9-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.