CVE-2025-61106: Null Pointer Dereference
FRRouting/frr from v4.0 through v10.4.1 was discovered to contain a NULL pointer dereference via the showvtyextprefprefsid function at ospfext.c. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted OSPF packet.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
ubuntu/frrto a version that resolves this vulnerability.Fixed in 8.1-1ubuntu1.14 - Upgrade
Upgrade
ubuntu/frrto a version that resolves this vulnerability.Fixed in 8.4.4-1.1ubuntu6.5 - Upgrade
Upgrade
ubuntu/frrto a version that resolves this vulnerability.Fixed in 10.4.1-3ubuntu1.1 - Upgrade
Upgrade
ubuntu/frrto a version that resolves this vulnerability.Fixed in 10.5.1-1ubuntu2 - Upgrade
Upgrade
debian/frrto a version that resolves this vulnerability.Fixed in 8.4.4-1.1~deb12u2Fixed in 10.3-3+deb13u1Fixed in 10.7.1-7
Event History
Frequently Asked Questions
What is the severity of CVE-2025-61106?
CVE-2025-61106 has a medium severity rating as it can lead to a Denial of Service (DoS).
How do I fix CVE-2025-61106?
To mitigate CVE-2025-61106, upgrade FRRouting to version 10.4.2 or later where the vulnerability is addressed.
What systems are affected by CVE-2025-61106?
CVE-2025-61106 affects FRRouting from versions 4.0 to 10.4.1.
What kind of attack does CVE-2025-61106 enable?
CVE-2025-61106 allows attackers to perform Denial of Service (DoS) attacks by sending a crafted OSPF packet.
What component of FRRouting is impacted by CVE-2025-61106?
CVE-2025-61106 specifically impacts the show_vty_ext_pref_pref_sid function in the ospf_ext.c file.