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HighFix available

glibc security update

Type: advisorySource: OSV1 source record

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)

Announced Source revision 1
Original source ↗

OESA-2026-4016

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: osv:OESA-2026-4016

glibc

Source reference: /affected/0/package/name

Affected versions
Not stated in this record
Fixed versions
2.38-127.oe2403sp3

Source reference: /affected/0/ranges

Prerequisites
Not stated in this record

glibc

Source reference: /affected/1/package/name

Affected versions
Not stated in this record
Fixed versions
2.38-127.oe2403sp4

Source reference: /affected/1/ranges

Prerequisites
Not stated in this record

glibc

Source reference: /affected/2/package/name

Affected versions
Not stated in this record
Fixed versions
2.28-133.oe2003sp4

Source reference: /affected/2/ranges

Prerequisites
Not stated in this record

glibc

Source reference: /affected/3/package/name

Affected versions
Not stated in this record
Fixed versions
2.34-185.oe2203sp4

Source reference: /affected/3/ranges

Prerequisites
Not stated in this record

glibc

Source reference: /affected/4/package/name

Affected versions
Not stated in this record
Fixed versions
2.38-127.oe2403sp1

Source reference: /affected/4/ranges

Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
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    "ranges": [
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        "events": [
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          }
        ]
      }
    ],
    "package": {
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      "purl": "pkg:rpm/openEuler/glibc&distro=openEuler-24.03-LTS-SP3",
      "ecosystem": "openEuler:24.03-LTS-SP3"
    },
    "database_specific": {
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    },
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        "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",
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        "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"
      ],
      "aarch64": [
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        "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"
      ]
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "2.28-133.oe2003sp4"
          }
        ]
      }
    ],
    "package": {
      "name": "glibc",
      "purl": "pkg:rpm/openEuler/glibc&distro=openEuler-20.03-LTS-SP4",
      "ecosystem": "openEuler:20.03-LTS-SP4"
    },
    "database_specific": {
      "source": "https://repo.openeuler.org/security/data/osv/OESA-2026-4016.json"
    },
    "ecosystem_specific": {
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      ],
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        "glibc-benchtests-2.28-133.oe2003sp4.x86_64.rpm",
        "glibc-common-2.28-133.oe2003sp4.x86_64.rpm",
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        "glibc-debugsource-2.28-133.oe2003sp4.x86_64.rpm",
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        "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"
      ],
      "aarch64": [
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        "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"
      ]
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "2.34-185.oe2203sp4"
          }
        ]
      }
    ],
    "package": {
      "name": "glibc",
      "purl": "pkg:rpm/openEuler/glibc&distro=openEuler-22.03-LTS-SP4",
      "ecosystem": "openEuler:22.03-LTS-SP4"
    },
    "database_specific": {
      "source": "https://repo.openeuler.org/security/data/osv/OESA-2026-4016.json"
    },
    "ecosystem_specific": {
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      ],
      "noarch": [
        "glibc-help-2.34-185.oe2203sp4.noarch.rpm"
      ],
      "x86_64": [
        "glibc-2.34-185.oe2203sp4.x86_64.rpm",
        "glibc-all-langpacks-2.34-185.oe2203sp4.x86_64.rpm",
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        "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",
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        "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"
      ]
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "2.38-127.oe2403sp1"
          }
        ]
      }
    ],
    "package": {
      "name": "glibc",
      "purl": "pkg:rpm/openEuler/glibc&distro=openEuler-24.03-LTS-SP1",
      "ecosystem": "openEuler:24.03-LTS-SP1"
    },
    "database_specific": {
      "source": "https://repo.openeuler.org/security/data/osv/OESA-2026-4016.json"
    },
    "ecosystem_specific": {
      "src": [
        "glibc-2.38-127.oe2403sp1.src.rpm"
      ],
      "noarch": [
        "glibc-help-2.38-127.oe2403sp1.noarch.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"
      ],
      "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"
      ]
    }
  }
]

Publisher severity

high

Source reference: /database_specific/severity

Event
#14694 · Revision 1
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