DEBIAN-CVE-2025-37984

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Source
https://security-tracker.debian.org/tracker/DEBIAN-CVE-2025-37984
Import Source
https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2025-37984.json
JSON Data
https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2025-37984
Upstream
Published
2025-05-20T18:15:45Z
Modified
2025-09-19T07:34:35.880627Z
Summary
[none]
Details

In the Linux kernel, the following vulnerability has been resolved: crypto: ecdsa - Harden against integer overflows in DIVROUNDUP() Herbert notes that DIVROUNDUP() may overflow unnecessarily if an ecdsa implementation's ->keysize() callback returns an unusually large value. Herbert instead suggests (for a division by 8): X / 8 + !!(X & 7) Based on this formula, introduce a generic DIVROUNDUPPOW2() macro and use it in lieu of DIVROUNDUP() for ->keysize() return values. Additionally, use the macro in eccdigitsfrombytes(), whose "nbytes" parameter is a ->keysize() return value in some instances, or a user-specified ASN.1 length in the case of ecdsagetsignaturers().

References

Affected packages

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
6.12.41-1

Affected versions

6.*

6.12.38-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:14 / 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
6.16.3-1

Affected versions

6.*

6.12.38-1
6.12.41-1
6.12.43-1~bpo12+1
6.12.43-1
6.13~rc6-1~exp1
6.13~rc7-1~exp1
6.13.2-1~exp1
6.13.3-1~exp1
6.13.4-1~exp1
6.13.5-1~exp1
6.13.6-1~exp1
6.13.7-1~exp1
6.13.8-1~exp1
6.13.9-1~exp1
6.13.10-1~exp1
6.13.11-1~exp1
6.14.3-1~exp1
6.14.5-1~exp1
6.14.6-1~exp1
6.15~rc7-1~exp1
6.15-1~exp1
6.15.1-1~exp1
6.15.2-1~exp1
6.15.3-1~exp1
6.15.4-1~exp1
6.15.5-1~exp1
6.15.6-1~exp1
6.16~rc7-1~exp1
6.16-1~exp1
6.16.1-1~exp1
6.16.3-1~bpo13+1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}