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Echo: tar: security update to 1.34+dfsg-1.2+deb12u1

medium Tenable Cloud Security Plugin ID 455189

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - 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). NOTE: the official GNU Tar manual has an
 otherwise-empty directory for each "tar xf" in its Security Rules of Thumb; however, third-party advice
 leads users to run "tar xf" more than once into the same directory. (CVE-2025-45582)

Solution

Update the tar library and its related packages to version 1.34+dfsg-1.2+deb12u1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2025-45582

Plugin Details

Severity: Medium

ID: 455189

Version: Revision 1.3

Type: Local

Published: 10/1/2026

Updated: 10/2/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 2.3

Percentile: 9.42

CVSS v2

Risk Factor: Low

Base Score: 2.6

Temporal Score: 2

Vector: CVSS2#AV:L/AC:H/Au:N/C:N/I:P/A:P

CVSS Score Source: CVE-2025-45582

CVSS v3

Risk Factor: Medium

Base Score: 4.1

Temporal Score: 3.7

Vector: CVSS:3.0/AV:L/AC:H/PR:N/UI:R/S:C/C:N/I:L/A:L

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 1/29/2026

Vulnerability Publication Date: 7/11/2025

Reference Information

CVE: CVE-2025-45582