CVE-2021-47159

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Source

https://nvd.nist.gov/vuln/detail/CVE-2021-47159

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-47159.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2021-47159

Related

Published

2024-03-25T10:15:08Z

Modified

2024-09-18T01:00:21Z

Summary

[none]

Details

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

net: dsa: fix a crash if ->getssetcount() fails

If ds->ops->getssetcount() fails then it "count" is a negative error code such as -EOPNOTSUPP. Because "i" is an unsigned int, the negative error code is type promoted to a very high value and the loop will corrupt memory until the system crashes.

Fix this by checking for error codes and changing the type of "i" to just int.

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

5.10.46-1

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"
}