Vulnerability · Published Feb 26, 2024 · Assigned by mitre
CVE-2024-26461
High 7.5
In plain English
A high-severity resource allocation without limits in the krb5-devel package (AlmaLinux). Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 1.1% (higher than 66% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)1.1%top 33.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
Kerberos 5 (aka krb5) 1.21.2 contains a memory leak vulnerability in /krb5/src/lib/gssapi/krb5/k5sealv3.c.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:8 | krb5-devel | 1.18.2-27.el8_10 | ALSA-2024:3268 |
| AlmaLinux:9 | krb5-devel | 1.21.1-3.el9 | ALSA-2024:9331 |
| AlmaLinux:8 | krb5-libs | 1.18.2-27.el8_10 | ALSA-2024:3268 |
| AlmaLinux:9 | krb5-libs | 1.21.1-3.el9 | ALSA-2024:9331 |
| AlmaLinux:8 | krb5-pkinit | 1.18.2-27.el8_10 | ALSA-2024:3268 |
| AlmaLinux:9 | krb5-pkinit | 1.21.1-3.el9 | ALSA-2024:9331 |
| AlmaLinux:8 | krb5-server | 1.18.2-27.el8_10 | ALSA-2024:3268 |
| AlmaLinux:9 | krb5-server | 1.21.1-3.el9 | ALSA-2024:9331 |
| AlmaLinux:8 | krb5-server-ldap | 1.18.2-27.el8_10 | ALSA-2024:3268 |
| AlmaLinux:9 | krb5-server-ldap | 1.21.1-3.el9 | ALSA-2024:9331 |
| AlmaLinux:8 | krb5-workstation | 1.18.2-27.el8_10 | ALSA-2024:3268 |
| AlmaLinux:9 | krb5-workstation | 1.21.1-3.el9 | ALSA-2024:9331 |
| AlmaLinux:8 | libkadm5 | 1.18.2-27.el8_10 | ALSA-2024:3268 |
| AlmaLinux:9 | libkadm5 | 1.21.1-3.el9 | ALSA-2024:9331 |
| Debian:12 | krb5 | no fix listed | DEBIAN-CVE-2024-26461 |
| Debian:13 | krb5 | no fix listed | DEBIAN-CVE-2024-26461 |
| Debian:14 | krb5 | 1.22.1-2 | DEBIAN-CVE-2024-26461 |
| Rocky Linux:8 | krb5 | 0:1.18.2-27.el8_10 | RLSA-2024:3268 |
| Ubuntu:22.04:LTS | krb5 | 1.19.2-2ubuntu0.6 | USN-7314-1 |
| Ubuntu:22.04:LTS | krb5 | 1.19.2-2ubuntu0.6 | UBUNTU-CVE-2024-26461 |
| Ubuntu:24.04:LTS | krb5 | 1.20.1-6ubuntu2.5 | USN-7314-1 |
| Ubuntu:24.04:LTS | krb5 | 1.20.1-6ubuntu2.5 | UBUNTU-CVE-2024-26461 |
| Ubuntu:25.10 | krb5 | 1.21.3-4ubuntu2 | UBUNTU-CVE-2024-26461 |
Affected products (as reported)
Weakness: CWE-770 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H