The original patch for CVE-2007-3999 in svc_auth_gss.c in the RPCSEC_GSS RPC library in…
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- Complete · Complete · Complete
- Fix status
- Fixed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-119 and the CVSS impact.
Summary
The original patch for CVE-2007-3999 in svc_auth_gss.c in the RPCSEC_GSS RPC library in MIT Kerberos 5 (krb5) 1.4 through 1.6.2, as used by the Kerberos administration daemon (kadmind) and other applications that use krb5, does not correctly check the buffer length in some environments and architectures, which might allow remote attackers to conduct a buffer overflow attack.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
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
CPE configurations NVD · 12
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:mit:kerberos_5:1.4:*:*:*:*:*:*:* | 1.4 | Vulnerable | moos-ivp |
| cpe:2.3:a:mit:kerberos_5:1.4.1:*:*:*:*:*:*:* | 1.4.1 | Vulnerable | moos-ivp |
| cpe:2.3:a:mit:kerberos_5:1.4.2:*:*:*:*:*:*:* | 1.4.2 | Vulnerable | moos-ivp |
| cpe:2.3:a:mit:kerberos_5:1.4.3:*:*:*:*:*:*:* | 1.4.3 | Vulnerable | moos-ivp |
| cpe:2.3:a:mit:kerberos_5:1.4.4:*:*:*:*:*:*:* | 1.4.4 | Vulnerable | moos-ivp |
| cpe:2.3:a:mit:kerberos_5:1.5:*:*:*:*:*:*:* | 1.5 | Vulnerable | moos-ivp |
| cpe:2.3:a:mit:kerberos_5:1.5.1:*:*:*:*:*:*:* | 1.5.1 | Vulnerable | moos-ivp |
| cpe:2.3:a:mit:kerberos_5:1.5.2:*:*:*:*:*:*:* | 1.5.2 | Vulnerable | moos-ivp |
| cpe:2.3:a:mit:kerberos_5:1.5.3:*:*:*:*:*:*:* | 1.5.3 | Vulnerable | moos-ivp |
| cpe:2.3:a:mit:kerberos_5:1.6:*:*:*:*:*:*:* | 1.6 | Vulnerable | moos-ivp |
- cpe:2.3:a:mit:kerberos_5:1.4:*:*:*:*:*:*:* Versions 1.4 Vulnerable ·moos-ivp
- cpe:2.3:a:mit:kerberos_5:1.4.1:*:*:*:*:*:*:* Versions 1.4.1 Vulnerable ·moos-ivp
- cpe:2.3:a:mit:kerberos_5:1.4.2:*:*:*:*:*:*:* Versions 1.4.2 Vulnerable ·moos-ivp
- cpe:2.3:a:mit:kerberos_5:1.4.3:*:*:*:*:*:*:* Versions 1.4.3 Vulnerable ·moos-ivp
- cpe:2.3:a:mit:kerberos_5:1.4.4:*:*:*:*:*:*:* Versions 1.4.4 Vulnerable ·moos-ivp
- cpe:2.3:a:mit:kerberos_5:1.5:*:*:*:*:*:*:* Versions 1.5 Vulnerable ·moos-ivp
- cpe:2.3:a:mit:kerberos_5:1.5.1:*:*:*:*:*:*:* Versions 1.5.1 Vulnerable ·moos-ivp
- cpe:2.3:a:mit:kerberos_5:1.5.2:*:*:*:*:*:*:* Versions 1.5.2 Vulnerable ·moos-ivp
- cpe:2.3:a:mit:kerberos_5:1.5.3:*:*:*:*:*:*:* Versions 1.5.3 Vulnerable ·moos-ivp
- cpe:2.3:a:mit:kerberos_5:1.6:*:*:*:*:*:*:* Versions 1.6 Vulnerable ·moos-ivp
Remediation
Red Hat 1 advisory
- RHSA-2007:0892 Released 2007-09-07 · Red Hat rating Importantkrb5 security update
- Red Hat Enterprise Linux (v. 5 server) krb5-1.5-29, krb5-devel-1.5-29, krb5-devel-1.5-29.i386 +14
- Red Hat Enterprise Linux Desktop (v. 5 client) krb5-1.5-29, krb5-libs-1.5-29, krb5-libs-1.5-29.i386 +2
- Red Hat Enterprise Linux Desktop Workstation (v. 5 client) krb5-1.5-29, krb5-devel-1.5-29, krb5-devel-1.5-29.i386 +2
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux (v. 5 server) | Fixed | RHSA-2007:0892 |
| Red Hat Enterprise Linux Desktop (v. 5 client) | Fixed | RHSA-2007:0892 |
| Red Hat Enterprise Linux Desktop Workstation (v. 5 client) | Fixed | RHSA-2007:0892 |
Timeline
- 2026-10-02 Threatist record created from CVE-2007-4743
- 2026-10-03 Alias added: GHSA-2pm5-h4rp-cjq3
References
More moos-ivp Kerberos 5 vulnerabilities
- TI-2024-17421 Kerberos 5 (aka krb5) 1.21.2 contains a memory leak vulnerability in /krb5/src/lib/gssapi/krb5/k5sealv3.c. CVSS 3.1HIGH 7.5
- TI-2001-00539 Buffer overflow in BSD-based telnetd telnet daemon on various operating systems allows… CVSS 2.0HIGH 10.0
- TI-2026-29130 NULL pointer dereference in moos-ivp Kerberos 5 CVSS 3.1HIGH 7.5
- TI-2007-00929 The telnet daemon (telnetd) in MIT krb5 before 1.6.1 allows remote attackers to bypass… CVSS 2.0HIGH 10.0
- TI-2011-00268 The process_chpw_request function in schpw.c in the password-changing functionality in… CVSS 2.0HIGH 10.0
- TI-2001-00245 Buffer overflows in BSD-based FTP servers allows remote attackers to execute arbitrary… CVSS 2.0HIGH 10.0
Sources
- CVE-2007-4743 · CVE Program
- CVE-2007-4743 · NVD
- FIRST EPSS
- GHSA-2pm5-h4rp-cjq3 · GitHub Advisory Database · CC BY 4.0
- CVE-2007-4743 · Red Hat security data · CC BY 4.0
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