Red Hat Security Advisory: krb5 security update
Multiple memory leak vulnerabilities have been identified in the krb5 component of Red Hat Enterprise Linux versions 8 and 9. These vulnerabilities affect various parts of the Kerberos implementation, including RPC and GSSAPI modules. The issues have been assigned CVE identifiers CVE-2024-26458, CVE-2024-26461, and CVE-2024-26462. Red Hat has released security updates addressing these memory leaks. The security impact is rated as low to moderate, and no known exploits are reported in the wild.
AI Analysis
Technical Summary
Red Hat has released security advisories addressing multiple memory leak vulnerabilities in the krb5 network authentication system. The issues occur in the source files /krb5/src/lib/rpc/pmap_rmt.c (CVE-2024-26458), /krb5/src/lib/gssapi/krb5/k5sealv3.c (CVE-2024-26461), and /krb5/src/kdc/ndr.c (CVE-2024-26462). These memory leaks could potentially affect the stability of Kerberos services by consuming system memory over time. The advisories cover Red Hat Enterprise Linux 8 and 9, including various architectures such as x86_64, s390x, ppc64le, and aarch64. Updated krb5 packages have been released to fix these issues, and the updates include automatic restarts of Kerberos services to apply the fixes.
Potential Impact
The vulnerabilities are memory leaks that could lead to increased memory consumption in affected krb5 components. While no active exploitation or critical impact has been reported, such leaks may degrade system performance or cause service instability over time. The security impact is rated as low to moderate by Red Hat, indicating limited risk but warranting patching to maintain system reliability.
Mitigation Recommendations
Official security updates addressing these memory leak vulnerabilities are available from Red Hat. Users should apply the provided krb5 package updates for Red Hat Enterprise Linux versions 8 and 9 as detailed in the Red Hat advisories RHSA-2024:9331 and RHSA-2024:3268. After installation, Kerberos services (krb5kdc, kadmin, and kprop) will be restarted automatically to apply the fixes. No additional mitigation actions are required beyond applying these official patches.
Red Hat Security Advisory: krb5 security update
Description
Multiple memory leak vulnerabilities have been identified in the krb5 component of Red Hat Enterprise Linux versions 8 and 9. These vulnerabilities affect various parts of the Kerberos implementation, including RPC and GSSAPI modules. The issues have been assigned CVE identifiers CVE-2024-26458, CVE-2024-26461, and CVE-2024-26462. Red Hat has released security updates addressing these memory leaks. The security impact is rated as low to moderate, and no known exploits are reported in the wild.
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Red Hat has released security advisories addressing multiple memory leak vulnerabilities in the krb5 network authentication system. The issues occur in the source files /krb5/src/lib/rpc/pmap_rmt.c (CVE-2024-26458), /krb5/src/lib/gssapi/krb5/k5sealv3.c (CVE-2024-26461), and /krb5/src/kdc/ndr.c (CVE-2024-26462). These memory leaks could potentially affect the stability of Kerberos services by consuming system memory over time. The advisories cover Red Hat Enterprise Linux 8 and 9, including various architectures such as x86_64, s390x, ppc64le, and aarch64. Updated krb5 packages have been released to fix these issues, and the updates include automatic restarts of Kerberos services to apply the fixes.
Potential Impact
The vulnerabilities are memory leaks that could lead to increased memory consumption in affected krb5 components. While no active exploitation or critical impact has been reported, such leaks may degrade system performance or cause service instability over time. The security impact is rated as low to moderate by Red Hat, indicating limited risk but warranting patching to maintain system reliability.
Mitigation Recommendations
Official security updates addressing these memory leak vulnerabilities are available from Red Hat. Users should apply the provided krb5 package updates for Red Hat Enterprise Linux versions 8 and 9 as detailed in the Red Hat advisories RHSA-2024:9331 and RHSA-2024:3268. After installation, Kerberos services (krb5kdc, kadmin, and kprop) will be restarted automatically to apply the fixes. No additional mitigation actions are required beyond applying these official patches.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2024:9331
- Cve Count
- 3
- Additional Cves
- ["CVE-2024-26461","CVE-2024-26462"]
Threat ID: 6a3da1eb4853345fc18305f1
Added to database: 06/25/2026, 21:47:23 UTC
Last enriched: 08/12/2026, 17:37:05 UTC
Last updated: 09/10/2026, 19:36:47 UTC
Views: 21
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