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TencentOS Server 3: perl:5.32 (TSSA-2026:0660)

critical Nessus Plugin ID 328429

Synopsis

The remote TencentOS Server 3 host is missing one or more security updates.

Description

The version of Tencent Linux installed on the remote TencentOS Server 3 host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the TSSA-2026:0660 advisory.

 Package updates are available for TencentOS Server 3 that fix the following vulnerabilities:

 CVE-2026-42496:
 Archive::Tar versions before 3.08 for Perl extract symlinks with attacker controlled targets outside the extraction directory.

 _make_special_file() passes the tar header's linkname to symlink() without validating it against absolute paths or .. segments. The secure-extract mode check that guards regular file extraction does not cover the symlink target.

 A subsequent open through the extracted name reads or writes the attacker chosen path.

 CVE-2026-48962:
 IO::Compress versions before 2.220 for Perl can execute arbitrary code in File::GlobMapper via an attacker-controlled output glob.

 _parseOutputGlob() wraps the caller-supplied output glob string in double quotes and stores it in the parser state; _getFiles() then runs the stored expression through eval STRING. A literal double quote in the output glob closes the dquote wrapper, and the characters that follow are evaluated as Perl.

 Arbitrary Perl in the output glob executes at the calling process's privilege.

Tenable has extracted the preceding description block directly from the Tencent Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

See Also

https://mirrors.tencent.com/tlinux/errata/tssa-20260660.xml

Plugin Details

Severity: Critical

ID: 328429

File Name: tencentos_TSSA_2026_0660.nasl

Version: 1.1

Type: Local

Published: 7/20/2026

Updated: 7/20/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.9

Percentile: 96.92

CVSS v2

Risk Factor: High

Base Score: 9.4

Temporal Score: 7.4

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

CVSS Score Source: CVE-2026-42496

CVSS v3

Risk Factor: Critical

Base Score: 9.1

Temporal Score: 8.2

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

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

Vulnerability Information

CPE: cpe:/o:tencent:tencentos_server:3, p-cpe:/a:tencent:tencentos_server:perl-algorithm-diff, p-cpe:/a:tencent:tencentos_server:perl-archive-tar, p-cpe:/a:tencent:tencentos_server:perl-archive-zip, p-cpe:/a:tencent:tencentos_server:perl-autodie, p-cpe:/a:tencent:tencentos_server:perl-bignum, p-cpe:/a:tencent:tencentos_server:perl-carp, p-cpe:/a:tencent:tencentos_server:perl-compress-bzip2, p-cpe:/a:tencent:tencentos_server:perl-compress-raw-bzip2, p-cpe:/a:tencent:tencentos_server:perl-compress-raw-lzma, p-cpe:/a:tencent:tencentos_server:perl-compress-raw-zlib, p-cpe:/a:tencent:tencentos_server:perl-config-perl-v, p-cpe:/a:tencent:tencentos_server:perl-constant, p-cpe:/a:tencent:tencentos_server:perl-cpan-distnameinfo, p-cpe:/a:tencent:tencentos_server:perl-cpan-meta-requirements, p-cpe:/a:tencent:tencentos_server:perl-cpan-meta-yaml, p-cpe:/a:tencent:tencentos_server:perl-cpan-meta, p-cpe:/a:tencent:tencentos_server:perl-cpan, p-cpe:/a:tencent:tencentos_server:perl-data-dumper, p-cpe:/a:tencent:tencentos_server:perl-data-optlist, p-cpe:/a:tencent:tencentos_server:perl-data-section, p-cpe:/a:tencent:tencentos_server:perl-db_file, p-cpe:/a:tencent:tencentos_server:perl-devel-ppport, p-cpe:/a:tencent:tencentos_server:perl-devel-size, p-cpe:/a:tencent:tencentos_server:perl-digest-md5, p-cpe:/a:tencent:tencentos_server:perl-digest-sha, p-cpe:/a:tencent:tencentos_server:perl-digest, p-cpe:/a:tencent:tencentos_server:perl-encode-locale, p-cpe:/a:tencent:tencentos_server:perl-encode, p-cpe:/a:tencent:tencentos_server:perl-env, p-cpe:/a:tencent:tencentos_server:perl-experimental, p-cpe:/a:tencent:tencentos_server:perl-exporter, p-cpe:/a:tencent:tencentos_server:perl-extutils-cbuilder, p-cpe:/a:tencent:tencentos_server:perl-extutils-install, p-cpe:/a:tencent:tencentos_server:perl-extutils-makemaker, p-cpe:/a:tencent:tencentos_server:perl-extutils-manifest, p-cpe:/a:tencent:tencentos_server:perl-extutils-parsexs, p-cpe:/a:tencent:tencentos_server:perl-fedora-vsp, p-cpe:/a:tencent:tencentos_server:perl-file-fetch, p-cpe:/a:tencent:tencentos_server:perl-file-homedir, p-cpe:/a:tencent:tencentos_server:perl-file-path, p-cpe:/a:tencent:tencentos_server:perl-file-temp, p-cpe:/a:tencent:tencentos_server:perl-file-which, p-cpe:/a:tencent:tencentos_server:perl-filter-simple, p-cpe:/a:tencent:tencentos_server:perl-filter, p-cpe:/a:tencent:tencentos_server:perl-generators, p-cpe:/a:tencent:tencentos_server:perl-getopt-long, p-cpe:/a:tencent:tencentos_server:perl-http-tiny, p-cpe:/a:tencent:tencentos_server:perl-importer, p-cpe:/a:tencent:tencentos_server:perl-inc-latest, p-cpe:/a:tencent:tencentos_server:perl-io-compress-lzma, p-cpe:/a:tencent:tencentos_server:perl-io-compress, p-cpe:/a:tencent:tencentos_server:perl-io-socket-ip, p-cpe:/a:tencent:tencentos_server:perl-ipc-cmd, p-cpe:/a:tencent:tencentos_server:perl-ipc-system-simple, p-cpe:/a:tencent:tencentos_server:perl-ipc-sysv, p-cpe:/a:tencent:tencentos_server:perl-json-pp, p-cpe:/a:tencent:tencentos_server:perl-libnet, p-cpe:/a:tencent:tencentos_server:perl-local-lib, p-cpe:/a:tencent:tencentos_server:perl-locale-maketext, p-cpe:/a:tencent:tencentos_server:perl-math-bigint-fastcalc, p-cpe:/a:tencent:tencentos_server:perl-math-bigint, p-cpe:/a:tencent:tencentos_server:perl-math-bigrat, p-cpe:/a:tencent:tencentos_server:perl-mime-base64, p-cpe:/a:tencent:tencentos_server:perl-module-build, p-cpe:/a:tencent:tencentos_server:perl-module-corelist, p-cpe:/a:tencent:tencentos_server:perl-module-load-conditional, p-cpe:/a:tencent:tencentos_server:perl-module-load, p-cpe:/a:tencent:tencentos_server:perl-module-metadata, p-cpe:/a:tencent:tencentos_server:perl-mro-compat, p-cpe:/a:tencent:tencentos_server:perl-object-hashbase, p-cpe:/a:tencent:tencentos_server:perl-package-generator, p-cpe:/a:tencent:tencentos_server:perl-params-check, p-cpe:/a:tencent:tencentos_server:perl-params-util, p-cpe:/a:tencent:tencentos_server:perl-parent, p-cpe:/a:tencent:tencentos_server:perl-pathtools, p-cpe:/a:tencent:tencentos_server:perl-perl-ostype, p-cpe:/a:tencent:tencentos_server:perl-perlfaq, p-cpe:/a:tencent:tencentos_server:perl-perlio-via-quotedprint, p-cpe:/a:tencent:tencentos_server:perl-pod-checker, p-cpe:/a:tencent:tencentos_server:perl-pod-escapes, p-cpe:/a:tencent:tencentos_server:perl-pod-parser, p-cpe:/a:tencent:tencentos_server:perl-pod-perldoc, p-cpe:/a:tencent:tencentos_server:perl-pod-simple, p-cpe:/a:tencent:tencentos_server:perl-pod-usage, p-cpe:/a:tencent:tencentos_server:perl-podlators, p-cpe:/a:tencent:tencentos_server:perl-scalar-list-utils, p-cpe:/a:tencent:tencentos_server:perl-socket, p-cpe:/a:tencent:tencentos_server:perl-software-license, p-cpe:/a:tencent:tencentos_server:perl-storable, p-cpe:/a:tencent:tencentos_server:perl-sub-exporter, p-cpe:/a:tencent:tencentos_server:perl-sub-install, p-cpe:/a:tencent:tencentos_server:perl-sys-syslog, p-cpe:/a:tencent:tencentos_server:perl-term-ansicolor, p-cpe:/a:tencent:tencentos_server:perl-term-cap, p-cpe:/a:tencent:tencentos_server:perl-term-table, p-cpe:/a:tencent:tencentos_server:perl-test-harness, p-cpe:/a:tencent:tencentos_server:perl-test-simple, p-cpe:/a:tencent:tencentos_server:perl-text-balanced, p-cpe:/a:tencent:tencentos_server:perl-text-diff, p-cpe:/a:tencent:tencentos_server:perl-text-glob, p-cpe:/a:tencent:tencentos_server:perl-text-parsewords, p-cpe:/a:tencent:tencentos_server:perl-text-tabs%2bwrap, p-cpe:/a:tencent:tencentos_server:perl-text-template, p-cpe:/a:tencent:tencentos_server:perl-thread-queue, p-cpe:/a:tencent:tencentos_server:perl-threads-shared, p-cpe:/a:tencent:tencentos_server:perl-threads, p-cpe:/a:tencent:tencentos_server:perl-time-hires, p-cpe:/a:tencent:tencentos_server:perl-time-local, p-cpe:/a:tencent:tencentos_server:perl-unicode-collate, p-cpe:/a:tencent:tencentos_server:perl-unicode-normalize, p-cpe:/a:tencent:tencentos_server:perl-uri, p-cpe:/a:tencent:tencentos_server:perl-version, p-cpe:/a:tencent:tencentos_server:perl

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/etc/os-release, Host/TencentOS/rpm-list

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 6/29/2026

Vulnerability Publication Date: 5/26/2026

Reference Information

CVE: CVE-2026-42496, CVE-2026-48962