CVE-2023-53034
What it is
In the Linux kernel, the following vulnerability has been resolved: ntb_hw_switchtec: Fix shift-out-of-bounds in switchtec_ntb_mw_set_trans There is a kernel API ntb_mw_clear_trans() would pass 0 to both addr and size. This would make xlate_pos negative. [ 23.734156] switchtec switchtec0: MW 0: part 0 addr 0x0000000000000000 size 0x0000000000000000 [ 23.734158] ================================================================================ [ 23.734172] UBSAN: shift-out-of-bounds in drivers/ntb/hw/mscc/ntb_hw_switchtec.c:293:7 [ 23.734418] shift exponent -1 is negative Ensuring xlate_pos is a positive or zero before BIT.
At a glance
- Exploitability
- Can be exploited from the same network segment without logging in. High risk of service disruption.
- Exploit odds
- 0.3% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.3% in the next 30 days (EPSS).
- Severity: 7.1 HIGH (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.3% · EPSS, next 30 days
- Weakness
- CWE-125 · Out-of-bounds read
- Record status
- Modified
Affected
- Linux Kernel < 5.4.292
- Linux Kernel < 5.10.236
- Linux Kernel < 5.15.180
- Linux Kernel < 6.1.134
- Linux Kernel < 6.6.87
- Linux Kernel < 6.12.23
- Linux Kernel < 6.13.11
- Linux Kernel < 6.14.2
Attack profile CVSS 3.1 · 7.1
- Attack vector
- Adjacent network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- Low
- Integrity
- None
- Availability
- High
Raw vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2023-53034.md and follow it. Check whether this project is affected by CVE-2023-53034. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://git.kernel.org/stable/c/0df2e03e4620548b41891b4e0d1bd9d2e0d8a39a
- https://git.kernel.org/stable/c/2429bdf26a0f3950fdd996861e9c1a3873af1dbe
- https://git.kernel.org/stable/c/36d32cfb00d42e865396424bb5d340fc0a28870d
- https://git.kernel.org/stable/c/5b6857bb3bfb0dae17fab1e42c1e82c204a508b1
- https://git.kernel.org/stable/c/7ed22f8d8be26225a78cf5e85b2036421a6bf2d5
- https://git.kernel.org/stable/c/c61a3f2df162ba424be0141649a9ef5f28eaccc1
- https://git.kernel.org/stable/c/cb153bdc1812a3375639ed6ca5f147eaefb65349
- https://git.kernel.org/stable/c/de203da734fae00e75be50220ba5391e7beecdf9
- https://git.kernel.org/stable/c/f56951f211f181410a383d305e8d370993e45294
References
- https://git.kernel.org/stable/c/0df2e03e4620548b41891b4e0d1bd9d2e0d8a39a
- https://git.kernel.org/stable/c/2429bdf26a0f3950fdd996861e9c1a3873af1dbe
- https://git.kernel.org/stable/c/36d32cfb00d42e865396424bb5d340fc0a28870d
- https://git.kernel.org/stable/c/5b6857bb3bfb0dae17fab1e42c1e82c204a508b1
- https://git.kernel.org/stable/c/7ed22f8d8be26225a78cf5e85b2036421a6bf2d5
- https://git.kernel.org/stable/c/c61a3f2df162ba424be0141649a9ef5f28eaccc1
- https://git.kernel.org/stable/c/cb153bdc1812a3375639ed6ca5f147eaefb65349
- https://git.kernel.org/stable/c/de203da734fae00e75be50220ba5391e7beecdf9
- https://git.kernel.org/stable/c/f56951f211f181410a383d305e8d370993e45294
- https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html
- https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html