Detections
Analytics
Unity Linux 20.1050e / 20.1060e / 20.1070-8ae / 20.1070e Security Update: php (UTSA-2026-143721)
low Nessus Plugin ID 371637
Synopsis
The Unity Linux host is missing one or more security updates.Description
The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-143721 advisory.phar_tar_number() parses the octal size field of a TAR header into a uint32_t with no overflow check. The field is 11 octal digits wide and holds values up to 0x1FFFFFFFF, so a size above 0xFFFFFFFF silently wraps. The parser then skips the wrong number of data blocks and interprets attacker-controlled file content as the next TAR header, which lets a crafted archive inject entries that PharData reports and extracts as if they were genuine.
Tenable has extracted the preceding description block directly from the Unity Linux security advisory.
Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.
Solution
Update the affected php package.See Also
https://atomgit.com/src-openeuler/php/issues/196
Plugin Details
Severity: Low
ID: 371637
File Name: unity_linux_UTSA-2026-143721.nasl
Version: 1.1
Type: Local
Published: 10/24/2026
Updated: 10/24/2026
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Low
Score: 1.2
Percentile: 0.01
CVSS v2
Risk Factor: Low
Base Score: 1.7
Temporal Score: 1.3
Vector: CVSS2#AV:L/AC:L/Au:S/C:N/I:P/A:N
CVSS Score Source: CVE-2026-6103
CVSS v3
Risk Factor: Low
Base Score: 3.3
Temporal Score: 3
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C
Vulnerability Information
Required KB Items: Host/local_checks_enabled, Host/cpu, Host/UOS-Server/release, Host/UOS-Server/rpm-list
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 10/23/2026
Vulnerability Publication Date: 9/22/2026
Reference Information
CVE: CVE-2026-6103