CVE-2023-32247: Linux Kernel ksmbd Session Setup Memory Exhaustion Denial-of-Service Vulnerability
First published: Wed Jul 05 2023(Updated: )
A flaw was found in the Linux kernel's ksmbd, a high-performance in-kernel SMB server. The specific flaw exists within the handling of SMB2_SESSION_SETUP commands. The issue results from the lack of control of resource consumption. An attacker can leverage this vulnerability to create a denial-of-service condition on the system.
Credit: secalert@redhat.com secalert@redhat.com secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Linux kernel | <=6.3.9 | |
| Linux kernel | ||
| redhat/kernel | <6.4 | 6.4 |
| Linux Linux kernel | >=5.15<5.15.145 | |
| Linux Linux kernel | >=5.16<6.1.29 | |
| Linux Linux kernel | >=6.2<6.2.16 | |
| Linux Linux kernel | >=6.3<6.3.2 | |
| Netapp H300s | ||
| Netapp H410s | ||
| Netapp H500s | ||
| Netapp H700s | ||
| debian/linux | 5.10.223-1 5.10.226-1 6.1.115-1 6.1.112-1 6.11.5-1 6.11.7-1 |
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Reference Links
- https://bugzilla.redhat.com/show_bug.cgi?id=2219803
- https://www.zerodayinitiative.com/advisories/ZDI-CAN-20478/
- https://access.redhat.com/security/cve/CVE-2023-32247
- https://security.netapp.com/advisory/ntap-20230915-0011/
- https://launchpad.net/bugs/cve/CVE-2023-32247
- https://github.com/torvalds/linux/commit/ea174a91893956450510945a0c5d1a10b5323656
- https://git.kernel.org/linus/ea174a91893956450510945a0c5d1a10b5323656
- https://security-tracker.debian.org/tracker/CVE-2023-32247
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-32247
- https://nvd.nist.gov/vuln/detail/CVE-2023-32247
- https://ubuntu.com/security/CVE-2023-32247
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