cbcvebase.
CVE-2025-37778
published 2025-05-01

CVE-2025-37778: In the Linux kernel, the following vulnerability has been resolved: ksmbd: Fix dangling pointer in krb_authenticate krb_authenticate frees sess->user and does…

PriorityP340high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.48%
39.0th percentile
In the Linux kernel, the following vulnerability has been resolved: ksmbd: Fix dangling pointer in krb_authenticate krb_authenticate frees sess->user and does not set the pointer to NULL. It calls ksmbd_krb5_authenticate to reinitialise sess->user but that function may return without doing so. If that happens then smb2_sess_setup, which calls krb_authenticate, will be accessing free'd memory when it later uses sess->user.

Affected

58 ranges· showing 25
VendorProductVersion rangeFixed in
debiandebian_linux
debianlinux< linux 6.1.135-1 (bookworm)linux 6.1.135-1 (bookworm)
debianlinux-6.1< linux 6.1.135-1 (bookworm)linux 6.1.135-1 (bookworm)
linuxlinux
linuxlinux>= 0626e6641f6b467447c81dd7678a69c66f7746cf < b61f04d5d73c53d183019bafe22fb700a739bac5b61f04d5d73c53d183019bafe22fb700a739bac5
linuxlinux>= 0626e6641f6b467447c81dd7678a69c66f7746cf < d5b554bc8d554ed6ddf443d3db2fad9f665cec10d5b554bc8d554ed6ddf443d3db2fad9f665cec10
linuxlinux>= 0626e6641f6b467447c81dd7678a69c66f7746cf < 1db2451de23e98bc864c6a6e52aa0d82c91cb3251db2451de23e98bc864c6a6e52aa0d82c91cb325
linuxlinux>= 0626e6641f6b467447c81dd7678a69c66f7746cf < 6e30c0e10210c714f3d4453dc258d4abcc70364e6e30c0e10210c714f3d4453dc258d4abcc70364e
linuxlinux>= 0626e6641f6b467447c81dd7678a69c66f7746cf < e83e39a5f6a01a81411a4558a59a10f87aa88dd6e83e39a5f6a01a81411a4558a59a10f87aa88dd6
linuxlinux>= 0626e6641f6b467447c81dd7678a69c66f7746cf < 1e440d5b25b7efccb3defe542a73c51005799a5f1e440d5b25b7efccb3defe542a73c51005799a5f
linuxlinux_kernel
linuxlinux_kernel>= 0 < 6.1.135-16.1.135-1
linuxlinux_kernel>= 0 < 6.12.25-16.12.25-1
linuxlinux_kernel>= 0 < 6.12.25-16.12.25-1
linuxlinux_kernel>= 0 < 6.8.0-100.1006.8.0-100.100
linuxlinux_kernel>= 0 < 6.14.0-22.226.14.0-22.22
linuxlinux_kernel>= 5.15 < 6.1.1356.1.135
linuxlinux_kernel>= 6.13 < 6.14.46.14.4
linuxlinux_kernel>= 6.2 < 6.6.886.6.88
linuxlinux_kernel>= 6.7 < 6.12.256.12.25
msrcazl3_kernel_6.6.85.1-4_on_azure_linux_3.0
msrcazl3_kernel_6.6.92.2-1_on_azure_linux_3.0
ubuntulinux
ubuntulinux-aws
ubuntulinux-aws-5.15

CVSS provenance

nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
osv7.8HIGH
vendor_debian7.8HIGH
vendor_redhat7.8HIGH
vendor_ubuntu7.8HIGH
vendor_msrc5.5MEDIUM
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