CVE-2021-47353

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Source

https://nvd.nist.gov/vuln/detail/CVE-2021-47353

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-47353.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2021-47353

Related

Published

2024-05-21T15:15:21Z

Modified

2024-09-18T03:17:26.059511Z

Summary

[none]

Details

In the Linux kernel, the following vulnerability has been resolved:

udf: Fix NULL pointer dereference in udf_symlink function

In function udfsymlink, epos.bh is assigned with the value returned by udftgetblk. The function udftgetblk is defined in udf/misc.c and returns the value of sbgetblk function that could be NULL. Then, epos.bh is used without any check, causing a possible NULL pointer dereference when sb_getblk fails.

This fix adds a check to validate the value of epos.bh.

References

Affected packages

Debian:11 / linux

Package

Name: linux
Purl: pkg:deb/debian/linux?arch=source

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

5.10.70-1

Affected versions

5.*

5.10.46-4

5.10.46-5

5.10.70-1~bpo10+1

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Debian:12 / linux

Package

Name: linux
Purl: pkg:deb/debian/linux?arch=source

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

5.14.6-1

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Debian:13 / linux

Package

Name: linux
Purl: pkg:deb/debian/linux?arch=source

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

5.14.6-1

Ecosystem specific

{
    "urgency": "not yet assigned"
}