Summary
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- SMB network file system;
- Network namespace;
- Networking core;
(CVE-2024-56658, CVE-2024-35864, CVE-2024-26928)
Fixed packages 1
| Release | Package | Fixed in |
|---|---|---|
| Ubuntu · Pro FIPS-updates 20.04 LTS Pro:FIPS-updates:20.04:LTS | linux-fips | 5.4.0-1117.127 |
Vulnerabilities 3
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Critical 9.8
smb: client: fix potential UAF in smb2_is_valid_lease_break()
In the Linux kernel, the following vulnerability has been resolved: smb: client: fix potential UAF in smb2_is_valid_lease_break() Skip sessions that are being teared down (status == SES_EXITING) to avoid UAF.
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High 7.8
net: defer final 'struct net' free in netns dismantle
In the Linux kernel, the following vulnerability has been resolved: net: defer final 'struct net' free in netns dismantle Ilya reported a slab-use-after-free in dst_destroy [1] Issue is in xfrm6_net_init() and xfrm4_net_init() : They copy xfrm[46]_dst_ops_tem…
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Unscored —
smb: client: fix potential UAF in cifs_debug_files_proc_show()
In the Linux kernel, the following vulnerability has been resolved: smb: client: fix potential UAF in cifs_debug_files_proc_show() Skip sessions that are being teared down (status == SES_EXITING) to avoid UAF.