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CVE-2023-52837
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MITRE ATT&CK
Collection
Command and Control
Credential Access
Defense Evasion
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Execution
Exfiltration
Impact
Initial Access
Lateral Movement
Persistence
Privilege Escalation
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Description
In the Linux kernel, the following vulnerability has been resolved:
nbd: fix uaf in nbd_open
Commit 4af5f2e03013 (“nbd: use blk_mq_alloc_disk and
blk_cleanup_disk”) cleans up disk by blk_cleanup_disk() and it won’t set
disk->private_data as NULL as before. UAF may be triggered in nbd_open()
if someone tries to open nbd device right after nbd_put() since nbd has
been free in nbd_dev_remove().
Fix this by implementing –>free_disk and free private data in it.
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- Linux
Products
- Linux
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Technical Analysis
Report as Exploited in the Wild
CVE ID
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