SecuriTricks - CVE-2024-49900

Description

In the Linux kernel, the following vulnerability has been resolved: jfs: Fix uninit-value access of new_ea in ea_buffer syzbot reports that lzo1x_1_do_compress is using uninit-value: ===================================================== BUG: KMSAN: uninit-value in lzo1x_1_do_compress+0x19f9/0x2510 lib/lzo/lzo1x_compress.c:178 ... Uninit was stored to memory at: ea_put fs/jfs/xattr.c:639 [inline] ... Local variable ea_buf created at: __jfs_setxattr+0x5d/0x1ae0 fs/jfs/xattr.c:662 __jfs_xattr_set+0xe6/0x1f0 fs/jfs/xattr.c:934 ===================================================== The reason is ea_buf->new_ea is not initialized properly. Fix this by using memset to empty its content at the beginning in ea_get().

Product(s) Impacted

Vendor	Product	Versions
Linux	Linux Kernel	*

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-908

Use of Uninitialized Resource

The product uses or accesses a resource that has not been initialized.

*CPE(s)

Affected systems and software identified for this CVE.

Type	Vendor	Product	Version	Update	Edition	Language	Software Edition	Target Software	Target Hardware	Other Information
o	linux	linux_kernel	/	/	/	/	/	/	/	/
o	linux	linux_kernel	/	/	/	/	/	/	/	/
o	linux	linux_kernel	/	/	/	/	/	/	/	/
o	linux	linux_kernel	/	/	/	/	/	/	/	/
o	linux	linux_kernel	/	/	/	/	/	/	/	/
o	linux	linux_kernel	/	/	/	/	/	/	/	/

References

https://git.kernel.org/stable/c/2b59ffad47db1c46af25ccad157bb3b25147c35c

https://git.kernel.org/stable/c/6041536d18c5f51a84bc37cd568cbab61870031e

https://git.kernel.org/stable/c/7b24d41d47a6805c45378debf8bd115675d41da8

https://git.kernel.org/stable/c/7c244d5b48284a770d96ff703df2dfeadf804a73

https://git.kernel.org/stable/c/8ad8b531de79c348bcb8133e7f5e827b884226af

https://git.kernel.org/stable/c/8b1dcf25c26d42e4a68c4725ce52a0543c7878cc

https://git.kernel.org/stable/c/c076b3746224982eebdba5c9e4b1467e146c0d64

https://git.kernel.org/stable/c/d7444f91a9f93eaa48827087ed0f3381c194181d

https://git.kernel.org/stable/c/dac398ed272a378d2f42ac68ae408333a51baf52

CVSS Score

7.1 / 10

CVSS Data - 3.1

Attack Vector: LOCAL
Attack Complexity: LOW
Privileges Required: LOW
Scope: UNCHANGED
Confidentiality Impact: HIGH
Integrity Impact: NONE
Availability Impact: HIGH

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

View Vector String

Timeline

Published: Oct. 21, 2024, 6:15 p.m.
Last Modified: Nov. 8, 2024, 4:15 p.m.

Status : Modified

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

416baaa9-dc9f-4396-8d5f-8c081fb06d67

CVE-2024-49900