AlmaLinux 9.2 [TuxCare] Security Update: perl / perl-Attribute-Handlers / perl-AutoLoader / perl-AutoSplit / etc (ALMALINUX9.2:CLSA-2026:1784531112)
| Reporter | Title | Published | Views | Family All 95 |
|---|---|---|---|---|
| Security Bulletin: Multiple perl vulnerabilities impact AIX. | 28 Sep 202610:36 | – | ibm | |
| CVE-2026-57432 | 13 Jul 202615:38 | – | attackerkb | |
| CVE-2026-57432 | 13 Jul 202615:38 | – | alpinelinux | |
| The vulnerability of the Perl programming language, related to reading beyond the buffer in memory, allows attackers to cause service failures. | 25 Sep 202600:00 | – | bdu_fstec | |
| CVE-2026-57432 affecting package perl for versions less than 5.38.2-513 | 24 Jul 202400:12 | – | cbl_mariner | |
| CVE-2026-57432 vulnerabilities | 17 Jul 202614:17 | – | cgr | |
| CVE-2026-57432 | 13 Jul 202617:37 | – | circl | |
| perl: Fix of 2 CVEs | 17 Jul 202613:50 | – | cloudlinux | |
| CVE-2026-57432 | 13 Jul 202615:38 | – | cve | |
| CVE-2026-57432 Perl versions before 5.40.5-RC1, from 5.41.0 before 5.42.3-RC1, from 5.43.0 before 5.43.11 have an integer overflow in S_measure_struct leading to an out-of-bounds heap read in pack and unpack | 13 Jul 202615:38 | – | cvelist |
10
#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
##
include('compat.inc');
if (description)
{
script_id(351500);
script_version("1.1");
script_set_attribute(attribute:"plugin_modification_date", value:"2026/09/30");
script_cve_id("CVE-2026-57432");
script_xref(name:"CLSA", value:"2026:1784531112");
script_name(english:"AlmaLinux 9.2 [TuxCare] Security Update: perl / perl-Attribute-Handlers / perl-AutoLoader / perl-AutoSplit / etc (ALMALINUX9.2:CLSA-2026:1784531112)");
script_set_attribute(attribute:"synopsis", value:
"The AlmaLinux host is missing one or more security updates.");
script_set_attribute(attribute:"description", value:
"The AlmaLinux 9.2 host has packages installed that are affected by a vulnerability as referenced in the TuxCare
ALMALINUX9.2:CLSA-2026:1784531112 advisory.
- Perl versions before 5.40.5-RC1, from 5.41.0 before 5.42.3-RC1, from 5.43.0 before 5.43.11 have an integer
overflow in S_measure_struct leading to an out-of-bounds heap read in pack and unpack. S_measure_struct
adds each item's size times its repeat count to a running total with no overflow check, so a large repeat
count in a pack or unpack template wraps the signed SSize_t total negative. The @, X, and x position codes
then guard their moves with a signed length comparison that passes when the length is negative, advancing
the buffer pointer out of bounds. A template derived from untrusted input can read heap memory past the
buffer and return it to the caller. (CVE-2026-57432)
Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
# https://security.tuxcare.com/csaf/v2/els_os/almalinux9.2esu/advisories/2026/clsa-2026_1784531112.json
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?d7d442e7");
script_set_attribute(attribute:"see_also", value:"https://cve.tuxcare.com/els/releases/CLSA-2026:1784531112");
script_set_attribute(attribute:"solution", value:
"Update the affected packages based on the guidance in TuxCare advisory ALMALINUX9.2:CLSA-2026:1784531112.");
script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C");
script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-57432");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"exploit_available", value:"false");
script_set_attribute(attribute:"vendor_severity", value:"Important");
script_set_attribute(attribute:"vuln_publication_date", value:"2026/07/13");
script_set_attribute(attribute:"patch_publication_date", value:"2026/07/20");
script_set_attribute(attribute:"plugin_publication_date", value:"2026/09/30");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Alma Linux Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2026 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info2.nasl");
script_require_keys("Host/OS/extended-third-party", "Host/local_checks_enabled", "Host/AlmaLinux/release", "Host/AlmaLinux/rpm-list", "Host/cpu");
exit(0);
}
include('rpm2.inc');
var third_party_support = get_kb_item('Host/OS/extended-third-party');
if (empty_or_null(third_party_support) || third_party_support != 'TuxCare') exit(0, 'TuxCare support not enabled.');
if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_product = get_kb_item('installed_os/local/SSH/0/product');
if (isnull(os_product) || 'AlmaLinux' >!< os_product) audit(AUDIT_OS_NOT, 'AlmaLinux');
var os_version = get_kb_item('installed_os/local/SSH/0/version');
if (isnull(os_version)) audit(AUDIT_UNKNOWN_APP_VER, 'AlmaLinux');
if (! preg(pattern:"^9.2([^0-9]|$)", string:os_version)) audit(AUDIT_OS_NOT, 'AlmaLinux 9.2', 'AlmaLinux ' + os_version);
if (!get_kb_item('Host/AlmaLinux/rpm-list')) audit(AUDIT_PACKAGE_LIST_MISSING);
var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if (cpu !~ "^i[3-6]86$" && 'x86_64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'AlmaLinux', cpu);
var constraints = [
{
'release': '9',
'sp': '2',
'pkgs': [
{'reference':'perl-5.32.1-481.1.el9_2.tuxcare.els3', 'sp':'2', 'cpu':'x86_64', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE, 'epoch':'4'},
{'reference':'perl-Attribute-Handlers-1.01-481.1.el9_2.tuxcare.els3', 'sp':'2', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'perl-AutoLoader-5.74-481.1.el9_2.tuxcare.els3', 'sp':'2', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'perl-AutoSplit-5.74-481.1.el9_2.tuxcare.els3', 'sp':'2', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'perl-B-1.80-481.1.el9_2.tuxcare.els3', 'sp':'2', 'cpu':'x86_64', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'perl-Benchmark-1.23-481.1.el9_2.tuxcare.els3', 'sp':'2', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'perl-Class-Struct-0.66-481.1.el9_2.tuxcare.els3', 'sp':'2', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'perl-Config-Extensions-0.03-481.1.el9_2.tuxcare.els3', 'sp':'2', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'perl-DBM_Filter-0.06-481.1.el9_2.tuxcare.els3', 'sp':'2', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'perl-Devel-Peek-1.28-481.1.el9_2.tuxcare.els3', 'sp':'2', 'cpu':'x86_64', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'perl-Devel-SelfStubber-1.06-481.1.el9_2.tuxcare.els3', 'sp':'2', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'perl-DirHandle-1.05-481.1.el9_2.tuxcare.els3', 'sp':'2', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'perl-Dumpvalue-2.27-481.1.el9_2.tuxcare.els3', 'sp':'2', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'perl-DynaLoader-1.47-481.1.el9_2.tuxcare.els3', 'sp':'2', 'cpu':'x86_64', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'perl-English-1.11-481.1.el9_2.tuxcare.els3', 'sp':'2', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'perl-Errno-1.30-481.1.el9_2.tuxcare.els3', 'sp':'2', 'cpu':'x86_64', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'perl-ExtUtils-Constant-0.25-481.1.el9_2.tuxcare.els3', 'sp':'2', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'perl-ExtUtils-Embed-1.35-481.1.el9_2.tuxcare.els3', 'sp':'2', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'perl-ExtUtils-Miniperl-1.09-481.1.el9_2.tuxcare.els3', 'sp':'2', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'perl-Fcntl-1.13-481.1.el9_2.tuxcare.els3', 'sp':'2', 'cpu':'x86_64', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'perl-File-Basename-2.85-481.1.el9_2.tuxcare.els3', 'sp':'2', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'perl-File-Compare-1.100.600-481.1.el9_2.tuxcare.els3', 'sp':'2', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'perl-File-Copy-2.34-481.1.el9_2.tuxcare.els3', 'sp':'2', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'perl-File-DosGlob-1.12-481.1.el9_2.tuxcare.els3', 'sp':'2', 'cpu':'x86_64', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'perl-File-Find-1.37-481.1.el9_2.tuxcare.els3', 'sp':'2', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
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{'reference':'perl-FileCache-1.10-481.1.el9_2.tuxcare.els3', 'sp':'2', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
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{'reference':'perl-GDBM_File-1.18-481.1.el9_2.tuxcare.els3', 'sp':'2', 'cpu':'x86_64', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'perl-Getopt-Std-1.12-481.1.el9_2.tuxcare.els3', 'sp':'2', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'perl-Hash-Util-0.23-481.1.el9_2.tuxcare.els3', 'sp':'2', 'cpu':'x86_64', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'perl-Hash-Util-FieldHash-1.20-481.1.el9_2.tuxcare.els3', 'sp':'2', 'cpu':'x86_64', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'perl-I18N-Collate-1.02-481.1.el9_2.tuxcare.els3', 'sp':'2', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'perl-I18N-LangTags-0.44-481.1.el9_2.tuxcare.els3', 'sp':'2', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'perl-I18N-Langinfo-0.19-481.1.el9_2.tuxcare.els3', 'sp':'2', 'cpu':'x86_64', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'perl-IO-1.43-481.1.el9_2.tuxcare.els3', 'sp':'2', 'cpu':'x86_64', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
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{'reference':'perl-Net-1.02-481.1.el9_2.tuxcare.els3', 'sp':'2', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
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{'reference':'perl-POSIX-1.94-481.1.el9_2.tuxcare.els3', 'sp':'2', 'cpu':'x86_64', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'perl-Pod-Functions-1.13-481.1.el9_2.tuxcare.els3', 'sp':'2', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'perl-Pod-Html-1.25-481.1.el9_2.tuxcare.els3', 'sp':'2', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
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{'reference':'perl-Thread-Semaphore-2.13-481.1.el9_2.tuxcare.els3', 'sp':'2', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'perl-Tie-4.6-481.1.el9_2.tuxcare.els3', 'sp':'2', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'perl-Tie-File-1.06-481.1.el9_2.tuxcare.els3', 'sp':'2', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
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{'reference':'perl-Unicode-UCD-0.75-481.1.el9_2.tuxcare.els3', 'sp':'2', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'perl-User-pwent-1.03-481.1.el9_2.tuxcare.els3', 'sp':'2', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'perl-autouse-1.11-481.1.el9_2.tuxcare.els3', 'sp':'2', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'perl-base-2.27-481.1.el9_2.tuxcare.els3', 'sp':'2', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'perl-blib-1.07-481.1.el9_2.tuxcare.els3', 'sp':'2', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'perl-debugger-1.56-481.1.el9_2.tuxcare.els3', 'sp':'2', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'perl-deprecate-0.04-481.1.el9_2.tuxcare.els3', 'sp':'2', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'perl-devel-5.32.1-481.1.el9_2.tuxcare.els3', 'sp':'2', 'cpu':'i686', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE, 'epoch':'4'},
{'reference':'perl-devel-5.32.1-481.1.el9_2.tuxcare.els3', 'sp':'2', 'cpu':'x86_64', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE, 'epoch':'4'},
{'reference':'perl-diagnostics-1.37-481.1.el9_2.tuxcare.els3', 'sp':'2', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
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{'reference':'perl-less-0.03-481.1.el9_2.tuxcare.els3', 'sp':'2', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
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{'reference':'perl-libnetcfg-5.32.1-481.1.el9_2.tuxcare.els3', 'sp':'2', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE, 'epoch':'4'},
{'reference':'perl-libs-5.32.1-481.1.el9_2.tuxcare.els3', 'sp':'2', 'cpu':'i686', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE, 'epoch':'4'},
{'reference':'perl-libs-5.32.1-481.1.el9_2.tuxcare.els3', 'sp':'2', 'cpu':'x86_64', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE, 'epoch':'4'},
{'reference':'perl-locale-1.09-481.1.el9_2.tuxcare.els3', 'sp':'2', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'perl-macros-5.32.1-481.1.el9_2.tuxcare.els3', 'sp':'2', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE, 'epoch':'4'},
{'reference':'perl-meta-notation-5.32.1-481.1.el9_2.tuxcare.els3', 'sp':'2', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'perl-mro-1.23-481.1.el9_2.tuxcare.els3', 'sp':'2', 'cpu':'x86_64', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'perl-open-1.12-481.1.el9_2.tuxcare.els3', 'sp':'2', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'perl-overload-1.31-481.1.el9_2.tuxcare.els3', 'sp':'2', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'perl-overloading-0.02-481.1.el9_2.tuxcare.els3', 'sp':'2', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'perl-ph-5.32.1-481.1.el9_2.tuxcare.els3', 'sp':'2', 'cpu':'x86_64', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'perl-sigtrap-1.09-481.1.el9_2.tuxcare.els3', 'sp':'2', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'perl-sort-2.04-481.1.el9_2.tuxcare.els3', 'sp':'2', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'perl-subs-1.03-481.1.el9_2.tuxcare.els3', 'sp':'2', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'perl-tests-5.32.1-481.1.el9_2.tuxcare.els3', 'sp':'2', 'cpu':'x86_64', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE, 'epoch':'4'},
{'reference':'perl-utils-5.32.1-481.1.el9_2.tuxcare.els3', 'sp':'2', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'perl-vars-1.05-481.1.el9_2.tuxcare.els3', 'sp':'2', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'perl-vmsish-1.04-481.1.el9_2.tuxcare.els3', 'sp':'2', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE}
]
}
];
var os_release = get_one_kb_item('installed_os/local/SSH/0/release');
var os_sp = get_one_kb_item('Host/*/minor_release');
var flag = 0;
var reference;
var sp;
var _cpu;
var el_string;
var rpm_spec_vers_cmp;
var epoch;
var allowmaj;
var exists_check;
var cves;
foreach var constraint ( constraints ) {
# Check that the target release is equal to the affected release
if (!empty_or_null(constraint['release'])){
if (constraint['release'] != os_release) continue;
}
if (!empty_or_null(constraint['sp'])){
if (constraint['sp'] != os_sp) continue;
}
foreach var pkg ( constraint['pkgs'] ) {
reference = NULL;
sp = NULL;
_cpu = NULL;
el_string = NULL;
rpm_spec_vers_cmp = NULL;
epoch = NULL;
allowmaj = NULL;
exists_check = NULL;
cves = NULL;
if (!empty_or_null(pkg['reference'])) reference = pkg['reference'];
if (!empty_or_null(pkg['sp'])) sp = pkg['sp'];
if (!empty_or_null(pkg['cpu'])) _cpu = pkg['cpu'];
if (!empty_or_null(pkg['el_string'])) el_string = pkg['el_string'];
if (!empty_or_null(pkg['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = pkg['rpm_spec_vers_cmp'];
if (!empty_or_null(pkg['epoch'])) epoch = pkg['epoch'];
if (!empty_or_null(pkg['allowmaj'])) allowmaj = pkg['allowmaj'];
if (!empty_or_null(pkg['exists_check'])) exists_check = pkg['exists_check'];
if (!empty_or_null(pkg['cves'])) cves = pkg['cves'];
if (reference &&
## (no known rpm to check OR known rpm_exists)
(!exists_check || rpm_exists(rpm:exists_check)) &&
rpm_check(sp:sp, cpu:_cpu, reference:reference, epoch:epoch, el_string:el_string, rpm_spec_vers_cmp:rpm_spec_vers_cmp, allowmaj:allowmaj, cves:cves)) flag++;
}
}
if (flag)
{
security_report_v4(
port : 0,
severity : SECURITY_HOLE,
extra : rpm_report_get()
);
exit(0);
}
else
{
var tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'perl / perl-Attribute-Handlers / perl-AutoLoader / perl-AutoSplit / etc');
}
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30 Sep 2026 00:00Current
7.7High risk
Vulners AI Score7.7
CVSS 3.18.4
EPSS0.00211
SSVC