OESA-2026-4840

See a problem?
Please try reporting it to the source first.

Source

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2026-4840

Import Source

https://repo.openeuler.org/security/data/osv/OESA-2026-4840.json

JSON Data

https://api.osv.dev/v1/vulns/OESA-2026-4840

Upstream

CVE-2026-6862

Published

2026-11-11T12:26:43Z

Modified

2026-11-11T12:45:09Z

Severity

5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVSS Calculator

Summary

efivar security update

Details

Some command line interface of the UEFI variables tools are offered by .

Security Fix(es):

A flaw was found in libefiboot, a component of efivar. The device path node parser in libefiboot fails to validate that each node's Length field is at least 4 bytes, which is the minimum size for an EFI (Extensible Firmware Interface) device path node header. A local user could exploit this vulnerability by providing a specially crafted device path node. This can lead to infinite recursion, causing stack exhaustion and a process crash, resulting in a denial of service (DoS).(CVE-2026-6862)

Database specific

{
    "severity": "Medium"
}

References

Affected packages

openEuler:24.03-LTS-SP4 / efivar

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

38-9.oe2403sp4

Ecosystem specific

{
    "aarch64": [
        "efivar-38-9.oe2403sp4.aarch64.rpm",
        "efivar-debuginfo-38-9.oe2403sp4.aarch64.rpm",
        "efivar-debugsource-38-9.oe2403sp4.aarch64.rpm",
        "efivar-devel-38-9.oe2403sp4.aarch64.rpm",
        "efivar-libs-38-9.oe2403sp4.aarch64.rpm"
    ],
    "noarch": [
        "efivar-help-38-9.oe2403sp4.noarch.rpm"
    ],
    "src": [
        "efivar-38-9.oe2403sp4.src.rpm"
    ],
    "x86_64": [
        "efivar-38-9.oe2403sp4.x86_64.rpm",
        "efivar-debuginfo-38-9.oe2403sp4.x86_64.rpm",
        "efivar-debugsource-38-9.oe2403sp4.x86_64.rpm",
        "efivar-devel-38-9.oe2403sp4.x86_64.rpm",
        "efivar-libs-38-9.oe2403sp4.x86_64.rpm"
    ]
}

Database specific

source

"https://repo.openeuler.org/security/data/osv/OESA-2026-4840.json"