OESA-2026-4494

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Source
https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2026-4494
Import Source
https://repo.openeuler.org/security/data/osv/OESA-2026-4494.json
JSON Data
https://api.osv.dev/v1/vulns/OESA-2026-4494
Upstream
Published
2026-10-22T14:35:48Z
Modified
2026-10-22T14:45:11Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
krb5 security update
Details

Kerberos is a network authentication protocol. It is designed to provide strong authentication for client/server applications by using secret-key cryptography.

Security Fix(es):

MIT Kerberos 5 (krb5) through 1.22.2 contains a NULL pointer dereference in make_cred_list() in rd_cred.c that allows authenticated Kerberos clients to crash services by sending mismatched KRB-CRED arrays. Attackers can send forwarded credentials with more tickets than ticket_info entries through gss_accept_sec_context() to crash GSS-API acceptor services, causing denial of service.(CVE-2026-107778)

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

Affected packages

openEuler:22.03-LTS-SP4 / krb5

Package

Name
krb5
Purl
pkg:rpm/openEuler/krb5&distro=openEuler-22.03-LTS-SP4

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.19.2-33.oe2203sp4

Ecosystem specific 

{
    "aarch64":  [
        "krb5-1.19.2-33.oe2203sp4.aarch64.rpm",
        "krb5-client-1.19.2-33.oe2203sp4.aarch64.rpm",
        "krb5-debuginfo-1.19.2-33.oe2203sp4.aarch64.rpm",
        "krb5-debugsource-1.19.2-33.oe2203sp4.aarch64.rpm",
        "krb5-devel-1.19.2-33.oe2203sp4.aarch64.rpm",
        "krb5-libs-1.19.2-33.oe2203sp4.aarch64.rpm",
        "krb5-server-1.19.2-33.oe2203sp4.aarch64.rpm"
    ],
    "noarch":  [
        "krb5-help-1.19.2-33.oe2203sp4.noarch.rpm"
    ],
    "src":  [
        "krb5-1.19.2-33.oe2203sp4.src.rpm"
    ],
    "x86_64":  [
        "krb5-1.19.2-33.oe2203sp4.x86_64.rpm",
        "krb5-client-1.19.2-33.oe2203sp4.x86_64.rpm",
        "krb5-debuginfo-1.19.2-33.oe2203sp4.x86_64.rpm",
        "krb5-debugsource-1.19.2-33.oe2203sp4.x86_64.rpm",
        "krb5-devel-1.19.2-33.oe2203sp4.x86_64.rpm",
        "krb5-libs-1.19.2-33.oe2203sp4.x86_64.rpm",
        "krb5-server-1.19.2-33.oe2203sp4.x86_64.rpm"
    ]
}

Database specific

source 
"https://repo.openeuler.org/security/data/osv/OESA-2026-4494.json"