CVE-2023-36054 — Access of Uninitialized Pointer in Kerberos 5

CWE-824 — Access of Uninitialized Pointer9 documents8 sources
Severity
6.5MEDIUMNVD
EPSS
1.1%
top 21.77%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
4
MIT Krb5MIT Kerberos 5Debian Linux+1 more
Timeline
PublishedAug 7
Latest updateNov 6

Description

lib/kadm5/kadm_rpc_xdr.c in MIT Kerberos 5 (aka krb5) before 1.20.2 and 1.21.x before 1.21.1 frees an uninitialized pointer. A remote authenticated user can trigger a kadmind crash. This occurs because _xdr_kadm5_principal_ent_rec does not validate the relationship between n_key_data and the key_data array count.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 2.8 | Impact: 3.6

Affected Packages3 packages

▶NVDmit/kerberos_5< 1.20.2+1
▶Debianmit/krb5< 1.18.3-6+deb11u4+3

Also affects: Debian Linux 10.0

Patches

Patch: github.com ↗Patch: github.com ↗Patch: github.com ↗

🔴Vulnerability Details

3
OSV
CVE-2023-36054: lib/kadm5/kadm_rpc_xdr↗2023-08-07
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CVEList
CVE-2023-36054: lib/kadm5/kadm_rpc_xdr↗2023-08-07
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GHSA
GHSA-39q6-4vrm-fv3g: lib/kadm5/kadm_rpc_xdr↗2023-08-07
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📋Vendor Advisories

5
Ubuntu
Kerberos vulnerability↗2023-11-06
▶
Ubuntu
Kerberos vulnerability↗2023-11-01
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Microsoft
lib/kadm5/kadm_rpc_xdr.c in MIT Kerberos 5 (aka krb5) before 1.20.2 and 1.21.x before 1.21.1 frees an uninitialized pointer. A remote authenticated user can trigger a kadmind crash. This occurs becaus↗2023-08-08
▶
Red Hat
krb5: Denial of service through freeing uninitialized pointer↗2023-08-07
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Debian
CVE-2023-36054: krb5 - lib/kadm5/kadm_rpc_xdr.c in MIT Kerberos 5 (aka krb5) before 1.20.2 and 1.21.x b...↗2023
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CVE-2023-36054 — Access of Uninitialized Pointer | cvebase