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CVE-2023-54087

UnknownEPSS 0.18%

Last modified

CVE-2023-54087 is a vulnerability of currently unknown severity. In the Linux kernel, the following vulnerability has been resolved: ubi: Fix possible null-ptr-deref in ubi_free_volume() It willl cause null-ptr-deref in the following case: uif_init() ubi_add_volume() cdev_add() -> if it fails, call kill_volumes() device_register() kill_volumes() -> if ubi_add_volume() fails call this function ubi_free_volume() cdev_del() device_unregister() -> trying to delete a not added device, it causes null-ptr-deref So in ubi_free_volume(), it delete devices whether they are added or not, it will causes null-ptr-deref. Handle the error case whlie calling ubi_add_volume() to fix this problem. If add volume fails, set the corresponding vol to null, so it can not be accessed in kill_volumes() and release the resource in ubi_add_volume() error path.. EPSS estimates a 0.18% chance of exploitation in the next 30 days.

Description

In the Linux kernel, the following vulnerability has been resolved: ubi: Fix possible null-ptr-deref in ubi_free_volume() It willl cause null-ptr-deref in the following case: uif_init() ubi_add_volume() cdev_add() -> if it fails, call kill_volumes() device_register() kill_volumes() -> if ubi_add_volume() fails call this function ubi_free_volume() cdev_del() device_unregister() -> trying to delete a not added device, it causes null-ptr-deref So in ubi_free_volume(), it delete devices whether they are added or not, it will causes null-ptr-deref. Handle the error case whlie calling ubi_add_volume() to fix this problem. If add volume fails, set the corresponding vol to null, so it can not be accessed in kill_volumes() and release the resource in ubi_add_volume() error path.

Metrics

EPSS Probability
0.18%

8.2th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= 801c135ce73d5df1caf3eca35b66a10824ae0707, < 5558bcf1c58720ca6e9d6198d921cb3aa337f038; >= 801c135ce73d5df1caf3eca35b66a10824ae0707, < 45b2c5ca4d2edae70f19fdb086bd927840c4c309; >= 801c135ce73d5df1caf3eca35b66a10824ae0707, < 234c53e57424992e657e6f4acc00d3df0983176f; >= 801c135ce73d5df1caf3eca35b66a10824ae0707, < fcbc795abe7897da4b5d2a6ab5010e36774b00c2; >= 801c135ce73d5df1caf3eca35b66a10824ae0707, < 5ec4c8aca5a221756a9007deadfea92795319fee; >= 801c135ce73d5df1caf3eca35b66a10824ae0707, < 2ea7195b195009ecf0046e55361f393ba96d02db; >= 801c135ce73d5df1caf3eca35b66a10824ae0707, < 9eccdb0760cbcb4427b5303a83a3007de998af51; >= 801c135ce73d5df1caf3eca35b66a10824ae0707, < c15859bfd326c10230f09cb48a17f8a35f190342
LinuxLinux2.6.22

References

Timeline

Published
Last Modified
Status
Deferred

Frequently Asked Questions

What is CVE-2023-54087?
In the Linux kernel, the following vulnerability has been resolved: ubi: Fix possible null-ptr-deref in ubi_free_volume() It willl cause null-ptr-deref in the following case: uif_init() ubi_add_volume() cdev_add() -> if it fails, call kill_volumes() device_register() kill_volumes() -> if ubi_add_volume() fails call this function ubi_free_volume() cdev_del() device_unregister() -> trying to delete a not added device, it causes null-ptr-deref So in ubi_free_volume(), it delete devices whether they are added or not, it will causes null-ptr-deref. Handle the error case whlie calling ubi_add_volume() to fix this problem. If add volume fails, set the corresponding vol to null, so it can not be accessed in kill_volumes() and release the resource in ubi_add_volume() error path.
How severe is CVE-2023-54087?
Severity scoring for CVE-2023-54087 is pending analysis. The EPSS model estimates a 0.18% probability of exploitation in the next 30 days.
How do I fix CVE-2023-54087?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST