Detections
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EulerOS 2.0 SP13 : glibc (EulerOS-SA-2026-2290)
critical Nessus Plugin ID 320234
Synopsis
The remote EulerOS host is missing multiple security updates.Description
According to the versions of the glibc packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :Calling the scanf family of functions with a %mc (malloc'd character match) in the GNU C Library version 2.7 to version 2.43 with a format width specifier with an explicit width greater than 1024 could result in a one byte heap buffer overflow.(CVE-2026-5450)
Calling the ungetwc function on a FILE stream with wide characters encoded in a character set that has overlaps between its single byte and multi-byte character encodings, in the GNU C Library version 2.43 or earlier, may result in an attempt to read bytes before an allocated buffer, potentially resulting in unintentional disclosure of neighboring data in the heap, or a program crash._x000D_
_x000D_ A bug in the wide character pushback implementation (_IO_wdefault_pbackfail in libio/wgenops.c) causes ungetwc() to operate on the regular character buffer (fp-_IO_read_ptr) instead of the actual wide- stream read pointer (fp-_wide_data-_IO_read_ptr). The program crash may happen in cases where fp-
_IO_read_ptr is not initialized and hence points to NULL. The buffer under-read requires a special situation where the input character encoding is such that there are overlaps between single byte representations and multibyte representations in that encoding, resulting in spurious matches. The spurious match case is not possible in the standard Unicode character sets.(CVE-2026-5928)
The iconv() function in the GNU C Library versions 2.43 and earlier may crash due to an assertion failure when converting inputs from the IBM1390 or IBM1399 character sets, which may be used to remotely crash an application._x000D_
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_x000D_ This vulnerability can be trivially mitigated by removing the IBM1390 and IBM1399 character sets from systems that do not need them.(CVE-2026-4046)
Tenable has extracted the preceding description block directly from the EulerOS glibc 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 glibc packages.See Also
Plugin Details
Severity: Critical
ID: 320234
File Name: EulerOS_SA-2026-2290.nasl
Version: 1.1
Type: Local
Family: Huawei Local Security Checks
Published: 6/10/2026
Updated: 6/10/2026
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 6.7
CVSS v2
Risk Factor: Critical
Base Score: 10
Temporal Score: 7.8
Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C
CVSS Score Source: CVE-2026-5450
CVSS v3
Risk Factor: Critical
Base Score: 9.8
Temporal Score: 8.8
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C
Vulnerability Information
CPE: p-cpe:/a:huawei:euleros:glibc-debugutils, p-cpe:/a:huawei:euleros:glibc-devel, p-cpe:/a:huawei:euleros:glibc-all-langpacks, p-cpe:/a:huawei:euleros:glibc-locale-archive, p-cpe:/a:huawei:euleros:nscd, p-cpe:/a:huawei:euleros:glibc-locale-source, p-cpe:/a:huawei:euleros:glibc-help, p-cpe:/a:huawei:euleros:libnsl, p-cpe:/a:huawei:euleros:glibc-common, p-cpe:/a:huawei:euleros:glibc, cpe:/o:huawei:euleros:2.0
Required KB Items: Host/local_checks_enabled, Host/cpu, Host/EulerOS/release, Host/EulerOS/rpm-list, Host/EulerOS/sp
Excluded KB Items: Host/EulerOS/uvp_version
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 6/10/2026
Vulnerability Publication Date: 3/30/2026