OESA-2026-4016

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Source
https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2026-4016
Import Source
https://repo.openeuler.org/security/data/osv/OESA-2026-4016.json
JSON Data
https://api.osv.dev/v1/vulns/OESA-2026-4016
Upstream
Published
2026-09-25T01:27:18Z
Modified
2026-09-25T01:45:07Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
glibc security update
Details

The GNU C Library project provides the core libraries for the GNU system and GNU/Linux systems, as well as many other systems that use Linux as the kernel. These libraries provide critical APIs including ISO C11, POSIX.1-2008, BSD, OS-specific APIs and more. These APIs include such foundational facilities as open, read, write, malloc, printf, getaddrinfo, dlopen, pthread_create, crypt, login, exit and more.

Security Fix(es):

Initializing the DNS stub resolver from an /etc/resolv.conf file, or a LOCALDOMAIN environment variable, whose search list contains a domain of roughly 200 characters or more in the GNU C Library version 2.26 to 2.44 results in an assertion failure which aborts the process.

The resolver truncates the search list when copying it into the fixed-size _res.defdname buffer, then asserts that the copy is consistent with the full configuration. The consistency check compared against the wrong size and did not handle a first entry that does not fit, so a correctly truncated list failed the assertion. Any process that resolves names through the library is affected, including long-running processes that reload /etc/resolv.conf on the next query after it changes. Search domains are commonly written to /etc/resolv.conf from data received over DHCP or from a VPN server, so an attacker on the local network may be able to trigger this without privileges on the target system, subject to validation by the network configuration software.(CVE-2026-8674)

Database specific 
{
    "severity":  "High"
}
References

Affected packages

openEuler:20.03-LTS-SP4
glibc

Package

Name
glibc
Purl
pkg:rpm/openEuler/glibc&distro=openEuler-20.03-LTS-SP4

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2.28-133.oe2003sp4

Ecosystem specific 

{
    "aarch64":  [
        "glibc-2.28-133.oe2003sp4.aarch64.rpm",
        "glibc-all-langpacks-2.28-133.oe2003sp4.aarch64.rpm",
        "glibc-benchtests-2.28-133.oe2003sp4.aarch64.rpm",
        "glibc-common-2.28-133.oe2003sp4.aarch64.rpm",
        "glibc-compat-2.17-2.28-133.oe2003sp4.aarch64.rpm",
        "glibc-debuginfo-2.28-133.oe2003sp4.aarch64.rpm",
        "glibc-debugsource-2.28-133.oe2003sp4.aarch64.rpm",
        "glibc-debugutils-2.28-133.oe2003sp4.aarch64.rpm",
        "glibc-devel-2.28-133.oe2003sp4.aarch64.rpm",
        "glibc-locale-source-2.28-133.oe2003sp4.aarch64.rpm",
        "glibc-nss-devel-2.28-133.oe2003sp4.aarch64.rpm",
        "libnsl-2.28-133.oe2003sp4.aarch64.rpm",
        "nscd-2.28-133.oe2003sp4.aarch64.rpm",
        "nss_modules-2.28-133.oe2003sp4.aarch64.rpm"
    ],
    "noarch":  [
        "glibc-help-2.28-133.oe2003sp4.noarch.rpm"
    ],
    "src":  [
        "glibc-2.28-133.oe2003sp4.src.rpm"
    ],
    "x86_64":  [
        "glibc-2.28-133.oe2003sp4.x86_64.rpm",
        "glibc-all-langpacks-2.28-133.oe2003sp4.x86_64.rpm",
        "glibc-benchtests-2.28-133.oe2003sp4.x86_64.rpm",
        "glibc-common-2.28-133.oe2003sp4.x86_64.rpm",
        "glibc-compat-2.17-2.28-133.oe2003sp4.x86_64.rpm",
        "glibc-debuginfo-2.28-133.oe2003sp4.x86_64.rpm",
        "glibc-debugsource-2.28-133.oe2003sp4.x86_64.rpm",
        "glibc-debugutils-2.28-133.oe2003sp4.x86_64.rpm",
        "glibc-devel-2.28-133.oe2003sp4.x86_64.rpm",
        "glibc-locale-source-2.28-133.oe2003sp4.x86_64.rpm",
        "glibc-nss-devel-2.28-133.oe2003sp4.x86_64.rpm",
        "libnsl-2.28-133.oe2003sp4.x86_64.rpm",
        "nscd-2.28-133.oe2003sp4.x86_64.rpm",
        "nss_modules-2.28-133.oe2003sp4.x86_64.rpm"
    ]
}

Database specific

source 
"https://repo.openeuler.org/security/data/osv/OESA-2026-4016.json"
openEuler:22.03-LTS-SP4
glibc

Package

Name
glibc
Purl
pkg:rpm/openEuler/glibc&distro=openEuler-22.03-LTS-SP4

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2.34-185.oe2203sp4

Ecosystem specific 

{
    "aarch64":  [
        "glibc-2.34-185.oe2203sp4.aarch64.rpm",
        "glibc-all-langpacks-2.34-185.oe2203sp4.aarch64.rpm",
        "glibc-common-2.34-185.oe2203sp4.aarch64.rpm",
        "glibc-compat-2.17-2.34-185.oe2203sp4.aarch64.rpm",
        "glibc-debuginfo-2.34-185.oe2203sp4.aarch64.rpm",
        "glibc-debugsource-2.34-185.oe2203sp4.aarch64.rpm",
        "glibc-debugutils-2.34-185.oe2203sp4.aarch64.rpm",
        "glibc-devel-2.34-185.oe2203sp4.aarch64.rpm",
        "glibc-locale-archive-2.34-185.oe2203sp4.aarch64.rpm",
        "glibc-locale-source-2.34-185.oe2203sp4.aarch64.rpm",
        "glibc-nss-devel-2.34-185.oe2203sp4.aarch64.rpm",
        "libnsl-2.34-185.oe2203sp4.aarch64.rpm",
        "nscd-2.34-185.oe2203sp4.aarch64.rpm",
        "nss_modules-2.34-185.oe2203sp4.aarch64.rpm"
    ],
    "noarch":  [
        "glibc-help-2.34-185.oe2203sp4.noarch.rpm"
    ],
    "src":  [
        "glibc-2.34-185.oe2203sp4.src.rpm"
    ],
    "x86_64":  [
        "glibc-2.34-185.oe2203sp4.x86_64.rpm",
        "glibc-all-langpacks-2.34-185.oe2203sp4.x86_64.rpm",
        "glibc-common-2.34-185.oe2203sp4.x86_64.rpm",
        "glibc-compat-2.17-2.34-185.oe2203sp4.x86_64.rpm",
        "glibc-debuginfo-2.34-185.oe2203sp4.x86_64.rpm",
        "glibc-debugsource-2.34-185.oe2203sp4.x86_64.rpm",
        "glibc-debugutils-2.34-185.oe2203sp4.x86_64.rpm",
        "glibc-devel-2.34-185.oe2203sp4.x86_64.rpm",
        "glibc-locale-archive-2.34-185.oe2203sp4.x86_64.rpm",
        "glibc-locale-source-2.34-185.oe2203sp4.x86_64.rpm",
        "glibc-nss-devel-2.34-185.oe2203sp4.x86_64.rpm",
        "libnsl-2.34-185.oe2203sp4.x86_64.rpm",
        "nscd-2.34-185.oe2203sp4.x86_64.rpm",
        "nss_modules-2.34-185.oe2203sp4.x86_64.rpm"
    ]
}

Database specific

source 
"https://repo.openeuler.org/security/data/osv/OESA-2026-4016.json"
openEuler:24.03-LTS-SP1
glibc

Package

Name
glibc
Purl
pkg:rpm/openEuler/glibc&distro=openEuler-24.03-LTS-SP1

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2.38-127.oe2403sp1

Ecosystem specific 

{
    "aarch64":  [
        "glibc-2.38-127.oe2403sp1.aarch64.rpm",
        "glibc-all-langpacks-2.38-127.oe2403sp1.aarch64.rpm",
        "glibc-common-2.38-127.oe2403sp1.aarch64.rpm",
        "glibc-debuginfo-2.38-127.oe2403sp1.aarch64.rpm",
        "glibc-debugsource-2.38-127.oe2403sp1.aarch64.rpm",
        "glibc-debugutils-2.38-127.oe2403sp1.aarch64.rpm",
        "glibc-devel-2.38-127.oe2403sp1.aarch64.rpm",
        "glibc-locale-archive-2.38-127.oe2403sp1.aarch64.rpm",
        "glibc-locale-source-2.38-127.oe2403sp1.aarch64.rpm",
        "glibc-nss-devel-2.38-127.oe2403sp1.aarch64.rpm",
        "libnsl-2.38-127.oe2403sp1.aarch64.rpm",
        "nscd-2.38-127.oe2403sp1.aarch64.rpm",
        "nss_modules-2.38-127.oe2403sp1.aarch64.rpm"
    ],
    "noarch":  [
        "glibc-help-2.38-127.oe2403sp1.noarch.rpm"
    ],
    "src":  [
        "glibc-2.38-127.oe2403sp1.src.rpm"
    ],
    "x86_64":  [
        "glibc-2.38-127.oe2403sp1.x86_64.rpm",
        "glibc-all-langpacks-2.38-127.oe2403sp1.x86_64.rpm",
        "glibc-common-2.38-127.oe2403sp1.x86_64.rpm",
        "glibc-debuginfo-2.38-127.oe2403sp1.x86_64.rpm",
        "glibc-debugsource-2.38-127.oe2403sp1.x86_64.rpm",
        "glibc-debugutils-2.38-127.oe2403sp1.x86_64.rpm",
        "glibc-devel-2.38-127.oe2403sp1.x86_64.rpm",
        "glibc-locale-archive-2.38-127.oe2403sp1.x86_64.rpm",
        "glibc-locale-source-2.38-127.oe2403sp1.x86_64.rpm",
        "glibc-nss-devel-2.38-127.oe2403sp1.x86_64.rpm",
        "libnsl-2.38-127.oe2403sp1.x86_64.rpm",
        "nscd-2.38-127.oe2403sp1.x86_64.rpm",
        "nss_modules-2.38-127.oe2403sp1.x86_64.rpm"
    ]
}

Database specific

source 
"https://repo.openeuler.org/security/data/osv/OESA-2026-4016.json"
openEuler:24.03-LTS-SP3
glibc

Package

Name
glibc
Purl
pkg:rpm/openEuler/glibc&distro=openEuler-24.03-LTS-SP3

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2.38-127.oe2403sp3

Ecosystem specific 

{
    "aarch64":  [
        "glibc-2.38-127.oe2403sp3.aarch64.rpm",
        "glibc-all-langpacks-2.38-127.oe2403sp3.aarch64.rpm",
        "glibc-common-2.38-127.oe2403sp3.aarch64.rpm",
        "glibc-debuginfo-2.38-127.oe2403sp3.aarch64.rpm",
        "glibc-debugsource-2.38-127.oe2403sp3.aarch64.rpm",
        "glibc-debugutils-2.38-127.oe2403sp3.aarch64.rpm",
        "glibc-devel-2.38-127.oe2403sp3.aarch64.rpm",
        "glibc-locale-archive-2.38-127.oe2403sp3.aarch64.rpm",
        "glibc-locale-source-2.38-127.oe2403sp3.aarch64.rpm",
        "glibc-nss-devel-2.38-127.oe2403sp3.aarch64.rpm",
        "libnsl-2.38-127.oe2403sp3.aarch64.rpm",
        "nscd-2.38-127.oe2403sp3.aarch64.rpm",
        "nss_modules-2.38-127.oe2403sp3.aarch64.rpm"
    ],
    "noarch":  [
        "glibc-help-2.38-127.oe2403sp3.noarch.rpm"
    ],
    "src":  [
        "glibc-2.38-127.oe2403sp3.src.rpm"
    ],
    "x86_64":  [
        "glibc-2.38-127.oe2403sp3.x86_64.rpm",
        "glibc-all-langpacks-2.38-127.oe2403sp3.x86_64.rpm",
        "glibc-common-2.38-127.oe2403sp3.x86_64.rpm",
        "glibc-debuginfo-2.38-127.oe2403sp3.x86_64.rpm",
        "glibc-debugsource-2.38-127.oe2403sp3.x86_64.rpm",
        "glibc-debugutils-2.38-127.oe2403sp3.x86_64.rpm",
        "glibc-devel-2.38-127.oe2403sp3.x86_64.rpm",
        "glibc-locale-archive-2.38-127.oe2403sp3.x86_64.rpm",
        "glibc-locale-source-2.38-127.oe2403sp3.x86_64.rpm",
        "glibc-nss-devel-2.38-127.oe2403sp3.x86_64.rpm",
        "libnsl-2.38-127.oe2403sp3.x86_64.rpm",
        "nscd-2.38-127.oe2403sp3.x86_64.rpm",
        "nss_modules-2.38-127.oe2403sp3.x86_64.rpm"
    ]
}

Database specific

source 
"https://repo.openeuler.org/security/data/osv/OESA-2026-4016.json"
openEuler:24.03-LTS-SP4
glibc

Package

Name
glibc
Purl
pkg:rpm/openEuler/glibc&distro=openEuler-24.03-LTS-SP4

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2.38-127.oe2403sp4

Ecosystem specific 

{
    "aarch64":  [
        "glibc-2.38-127.oe2403sp4.aarch64.rpm",
        "glibc-all-langpacks-2.38-127.oe2403sp4.aarch64.rpm",
        "glibc-common-2.38-127.oe2403sp4.aarch64.rpm",
        "glibc-debuginfo-2.38-127.oe2403sp4.aarch64.rpm",
        "glibc-debugsource-2.38-127.oe2403sp4.aarch64.rpm",
        "glibc-debugutils-2.38-127.oe2403sp4.aarch64.rpm",
        "glibc-devel-2.38-127.oe2403sp4.aarch64.rpm",
        "glibc-locale-archive-2.38-127.oe2403sp4.aarch64.rpm",
        "glibc-locale-source-2.38-127.oe2403sp4.aarch64.rpm",
        "glibc-nss-devel-2.38-127.oe2403sp4.aarch64.rpm",
        "libnsl-2.38-127.oe2403sp4.aarch64.rpm",
        "nscd-2.38-127.oe2403sp4.aarch64.rpm",
        "nss_modules-2.38-127.oe2403sp4.aarch64.rpm"
    ],
    "noarch":  [
        "glibc-help-2.38-127.oe2403sp4.noarch.rpm"
    ],
    "src":  [
        "glibc-2.38-127.oe2403sp4.src.rpm"
    ],
    "x86_64":  [
        "glibc-2.38-127.oe2403sp4.x86_64.rpm",
        "glibc-all-langpacks-2.38-127.oe2403sp4.x86_64.rpm",
        "glibc-common-2.38-127.oe2403sp4.x86_64.rpm",
        "glibc-debuginfo-2.38-127.oe2403sp4.x86_64.rpm",
        "glibc-debugsource-2.38-127.oe2403sp4.x86_64.rpm",
        "glibc-debugutils-2.38-127.oe2403sp4.x86_64.rpm",
        "glibc-devel-2.38-127.oe2403sp4.x86_64.rpm",
        "glibc-locale-archive-2.38-127.oe2403sp4.x86_64.rpm",
        "glibc-locale-source-2.38-127.oe2403sp4.x86_64.rpm",
        "glibc-nss-devel-2.38-127.oe2403sp4.x86_64.rpm",
        "libnsl-2.38-127.oe2403sp4.x86_64.rpm",
        "nscd-2.38-127.oe2403sp4.x86_64.rpm",
        "nss_modules-2.38-127.oe2403sp4.x86_64.rpm"
    ]
}

Database specific

source 
"https://repo.openeuler.org/security/data/osv/OESA-2026-4016.json"