CVE-2025-45582

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Source
https://nvd.nist.gov/vuln/detail/CVE-2025-45582
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-45582.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2025-45582
Published
2025-07-11T17:15:37Z
Modified
2025-07-11T21:59:50.783872Z
Summary
[none]
Details

GNU Tar through 1.35 allows file overwrite via directory traversal in crafted TAR archives, with a certain two-step process. First, the victim must extract an archive that contains a ../ symlink to a critical directory. Second, the victim must extract an archive that contains a critical file, specified via a relative pathname that begins with the symlink name and ends with that critical file's name. Here, the extraction follows the symlink and overwrites the critical file. This bypasses the protection mechanism of "Member name contains '..'" that would occur for a single TAR archive that attempted to specify the critical file via a ../ approach. For example, the first archive can contain "x -> ../../../../../home/victim/.ssh" and the second archive can contain x/authorized_keys. This can affect server applications that automatically extract any number of user-supplied TAR archives, and were relying on the blocking of traversal. This can also affect software installation processes in which "tar xf" is run more than once (e.g., when installing a package can automatically install two dependencies that are set up as untrusted tarballs instead of official packages).

References

Affected packages

Debian:11 / tar

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.34+dfsg-1
1.34+dfsg-1+deb11u1
1.34+dfsg-1.1
1.34+dfsg-1.2
1.34+dfsg-1.3
1.34+dfsg-1.4
1.35+dfsg-1
1.35+dfsg-2
1.35+dfsg-3
1.35+dfsg-3.1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:12 / tar

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.34+dfsg-1.2
1.34+dfsg-1.2+deb12u1
1.34+dfsg-1.3
1.34+dfsg-1.4
1.35+dfsg-1
1.35+dfsg-2
1.35+dfsg-3
1.35+dfsg-3.1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:13 / tar

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.34+dfsg-1.2
1.34+dfsg-1.3
1.34+dfsg-1.4
1.35+dfsg-1
1.35+dfsg-2
1.35+dfsg-3
1.35+dfsg-3.1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}