In MIT Kerberos 5 (aka krb5) before 1.21.3, an attacker can cause invalid memory reads…
Priority MEDIUM 43CWE-125Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · None · High
- Fix status
- Partial Red Hat: 21 fixed, 2 without a fix
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat.
Summary
In MIT Kerberos 5 (aka krb5) before 1.21.3, an attacker can cause invalid memory reads during GSS message token handling by sending message tokens with invalid length fields.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01863 79th percentileScored 2026-11-07
Fix Partial Red Hat: 16 advisoriesRed Hat: 21 fixed, 2 without a fix
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
Red Hat 16 advisories
- RHSA-2025:1673 Released 2025-02-19 · Red Hat rating Importantmysql:8.0 security update
- Red Hat Enterprise Linux AppStream (v. 8) mecab-0.996-2.module+el8.10.0+22857+7f331edd.aarch64::mysql:8.0, mecab-0.996-2.module+el8.10.0+22857+7f331edd.ppc64le::mysql:8.0, mecab-0.996-2.module+el8.10.0+22857+7f331edd.s390x::mysql:8.0 +44
- RHSA-2025:1671 Released 2025-02-19 · Red Hat rating Importantmysql security update
- Red Hat CodeReady Linux Builder (v. 9) mysql-devel-8.0.41-2.el9_5, mysql-libs-8.0.41-2.el9_5, mysql-test-8.0.41-2.el9_5
- Red Hat Enterprise Linux AppStream (v. 9) mysql-8.0.41-2.el9_5, mysql-common-8.0.41-2.el9_5, mysql-errmsg-8.0.41-2.el9_5 +1
- RHSA-2024:11109 Released 2024-12-16 · Red Hat rating LowUpdated service-interconnect rhel9 container images for 1.5
- Red Hat Service Interconnect 1 service-interconnect/skupper-config-sync-rhel9, service-interconnect/skupper-controller-podman-container-rhel9, service-interconnect/skupper-controller-podman-rhel9 +5
Show 13 more Red Hat advisories
- RHSA-2024:10135 Released 2024-11-21 · Red Hat rating LowUpdated service-interconnect rhel9 container images for 1.4 LTS
- 9Base-Service-Interconnect-1.4 service-interconnect/skupper-config-sync-rhel9, service-interconnect/skupper-flow-collector-rhel9, service-interconnect/skupper-operator-bundle +3
- RHSA-2024:7374 Released 2024-09-30 · Red Hat rating LowSecurity update for service-interconnect rhel9 container images
- Red Hat Service Interconnect 1 service-interconnect/skupper-config-sync-rhel9, service-interconnect/skupper-controller-podman-container-rhel9, service-interconnect/skupper-controller-podman-rhel9 +5
- RHSA-2024:7213 Released 2024-09-26 · Red Hat rating LowUpdated service-interconnect rhel9 container images for 1.4 LTS
- 9Base-Service-Interconnect-1.4 service-interconnect/skupper-config-sync-rhel9, service-interconnect/skupper-flow-collector-rhel9, service-interconnect/skupper-operator-bundle +3
- RHSA-2024:6166 Released 2024-09-03 · Red Hat rating Moderatekrb5 security update
- Red Hat Enterprise Linux AppStream (v. 9) krb5-devel-1.21.1-2.el9_4
- Red Hat Enterprise Linux BaseOS (v. 9) krb5-1.21.1-2.el9_4, krb5-libs-1.21.1-2.el9_4, krb5-pkinit-1.21.1-2.el9_4 +4
- RHSA-2024:5884 Released 2024-08-27 · Red Hat rating Moderatekrb5 security update
- Red Hat Enterprise Linux BaseOS AUS (v. 8.2) krb5-1.17-19.el8_2.1, krb5-devel-1.17-19.el8_2.1, krb5-libs-1.17-19.el8_2.1 +5
- RHSA-2024:5643 Released 2024-08-20 · Red Hat rating Moderatekrb5 security update
- Red Hat Enterprise Linux AppStream EUS (v.9.2) krb5-devel-1.20.1-9.el9_2.1
- Red Hat Enterprise Linux BaseOS EUS (v.9.2) krb5-1.20.1-9.el9_2.1, krb5-libs-1.20.1-9.el9_2.1, krb5-pkinit-1.20.1-9.el9_2.1 +4
- RHSA-2024:5625 Released 2024-08-20 · Red Hat rating Moderatekrb5 security update
- Red Hat Enterprise Linux BaseOS AUS (v.8.6) krb5-1.18.2-16.el8_6.1, krb5-devel-1.18.2-16.el8_6.1, krb5-libs-1.18.2-16.el8_6.1 +5
- Red Hat Enterprise Linux BaseOS E4S (v.8.6) krb5-1.18.2-16.el8_6.1, krb5-devel-1.18.2-16.el8_6.1, krb5-libs-1.18.2-16.el8_6.1 +5
- Red Hat Enterprise Linux BaseOS TUS (v.8.6) krb5-1.18.2-16.el8_6.1, krb5-devel-1.18.2-16.el8_6.1, krb5-libs-1.18.2-16.el8_6.1 +5
- RHSA-2024:5630 Released 2024-08-20 · Red Hat rating Moderatekrb5 security update
- Red Hat Enterprise Linux AppStream E4S (v.9.0) krb5-devel-1.19.1-16.el9_0.1
- Red Hat Enterprise Linux BaseOS E4S (v.9.0) krb5-1.19.1-16.el9_0.1, krb5-libs-1.19.1-16.el9_0.1, krb5-pkinit-1.19.1-16.el9_0.1 +4
- RHSA-2024:5316 Released 2024-08-13 · Red Hat rating Moderatekrb5 security update
- Red Hat Enterprise Linux Server AUS (v. 7.7) krb5-1.15.1-37.el7_7.4, krb5-devel-1.15.1-37.el7_7.4, krb5-libs-1.15.1-37.el7_7.4 +5
- RHSA-2024:5312 Released 2024-08-13 · Red Hat rating Moderatekrb5 security update
- Red Hat Enterprise Linux BaseOS (v. 8) krb5-1.18.2-29.el8_10, krb5-devel-1.18.2-29.el8_10, krb5-libs-1.18.2-29.el8_10 +5
- RHSA-2024:5076 Released 2024-08-07 · Red Hat rating Moderatekrb5 security update
- Red Hat Enterprise Linux Server (v. 7 ELS) krb5-1.15.1-55.el7_9.2, krb5-devel-1.15.1-55.el7_9.2, krb5-devel-1.15.1-55.el7_9.2.ppc +8
- RHSA-2024:4743 Released 2024-07-23 · Red Hat rating Moderatekrb5 security update
- Red Hat Enterprise Linux BaseOS EUS (v.8.8) krb5-1.18.2-26.el8_8.2, krb5-devel-1.18.2-26.el8_8.2, krb5-libs-1.18.2-26.el8_8.2 +5
- RHSA-2024:4734 Released 2024-07-23 · Red Hat rating Moderatekrb5 security update
- Red Hat Enterprise Linux BaseOS AUS (v.8.4) krb5-1.18.2-9.el8_4.1, krb5-devel-1.18.2-9.el8_4.1, krb5-libs-1.18.2-9.el8_4.1 +5
- Red Hat Enterprise Linux BaseOS E4S (v.8.4) krb5-1.18.2-9.el8_4.1, krb5-devel-1.18.2-9.el8_4.1, krb5-libs-1.18.2-9.el8_4.1 +5
- Red Hat Enterprise Linux BaseOS TUS (v.8.4) krb5-1.18.2-9.el8_4.1, krb5-devel-1.18.2-9.el8_4.1, krb5-libs-1.18.2-9.el8_4.1 +5
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Ansible Automation Platform 2 | Affected | No fix yet |
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| 9Base-Service-Interconnect-1.4 | Fixed | RHSA-2024:10135, RHSA-2024:7213 |
| Red Hat CodeReady Linux Builder (v. 9) | Fixed | RHSA-2025:1671 |
| Red Hat Enterprise Linux AppStream (v. 8) | Fixed | RHSA-2025:1673 |
| Red Hat Enterprise Linux AppStream (v. 9) | Fixed | RHSA-2024:6166, RHSA-2025:1671 |
| Red Hat Enterprise Linux AppStream E4S (v.9.0) | Fixed | RHSA-2024:5630 |
| Red Hat Enterprise Linux AppStream EUS (v.9.2) | Fixed | RHSA-2024:5643 |
| Red Hat Enterprise Linux BaseOS (v. 8) | Fixed | RHSA-2024:5312 |
| Red Hat Enterprise Linux BaseOS (v. 9) | Fixed | RHSA-2024:6166 |
| Red Hat Enterprise Linux BaseOS AUS (v. 8.2) | Fixed | RHSA-2024:5884 |
| Red Hat Enterprise Linux BaseOS AUS (v.8.4) | Fixed | RHSA-2024:4734 |
| Red Hat Enterprise Linux BaseOS AUS (v.8.6) | Fixed | RHSA-2024:5625 |
| Red Hat Enterprise Linux BaseOS E4S (v.8.4) | Fixed | RHSA-2024:4734 |
| Red Hat Enterprise Linux BaseOS E4S (v.8.6) | Fixed | RHSA-2024:5625 |
| Red Hat Enterprise Linux BaseOS E4S (v.9.0) | Fixed | RHSA-2024:5630 |
| Red Hat Enterprise Linux BaseOS EUS (v.8.8) | Fixed | RHSA-2024:4743 |
| Red Hat Enterprise Linux BaseOS EUS (v.9.2) | Fixed | RHSA-2024:5643 |
| Red Hat Enterprise Linux BaseOS TUS (v.8.4) | Fixed | RHSA-2024:4734 |
| Red Hat Enterprise Linux BaseOS TUS (v.8.6) | Fixed | RHSA-2024:5625 |
| Red Hat Enterprise Linux Server (v. 7 ELS) | Fixed | RHSA-2024:5076 |
| Red Hat Enterprise Linux Server AUS (v. 7.7) | Fixed | RHSA-2024:5316 |
| Red Hat Service Interconnect 1 | Fixed | RHSA-2024:11109, RHSA-2024:7374 |
Not affected: 4 products
- Red Hat Ansible Automation Platform 2
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux BaseOS E4S (v.8.6)
Timeline
- 2026-10-02 Threatist record created from CVE-2024-37371
- 2026-10-03 Alias added: GHSA-8wpj-v5qv-3wf4
References
Sources
- CVE-2024-37371 · CVE Program
- CVE-2024-37371 · NVD
- FIRST EPSS
- GHSA-8wpj-v5qv-3wf4 · GitHub Advisory Database · CC BY 4.0
- CVE-2024-37371 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences