CVE-2008-4551
strongSwan 4.2.6 and earlier allows remote attackers to cause a denial of service (daemon crash)...
strongSwan 4.2.6 and earlier allows remote attackers to cause a denial of service (daemon crash) via an IKE_SA_INIT message with a large number of NULL values in a Key Exchange payload, which triggers a NULL pointer dereference for the return value of the mpz_export function in the GNU Multiprecision Library (GMP).
Exploit likelihood
What each source reports
NVD Score used
strongSwan 4.2.6 and earlier allows remote attackers to cause a denial of service (daemon crash) via an IKE_SA_INIT message with a large number of NULL values in a Key Exchange payload, which triggers a NULL pointer dereference for the return value of the mpz_export function in the GNU Multiprecision Library (GMP).
- Record
CVE-2008-4551- CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:N/A:P - Weakness
- CWE-399
- Updated
- 2026-11-02
CVE List No score
strongSwan 4.2.6 and earlier allows remote attackers to cause a denial of service (daemon crash) via an IKE_SA_INIT message with a large number of NULL values in a Key Exchange payload, which triggers a NULL pointer dereference for the return value of the mpz_export function in the GNU Multiprecision Library (GMP).
- Record
CVE-2008-4551- Updated
- 2026-11-02
EUVDEUVD-2008-4532 No score
strongSwan 4.2.6 and earlier allows remote attackers to cause a denial of service (daemon crash) via an IKE_SA_INIT message with a large number of NULL values in a Key Exchange payload, which triggers a NULL pointer dereference for the return value of the mpz_export function in the GNU Multiprecision Library (GMP).
- Record
EUVD-2008-4532- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-q36r-q874-43q3 No score
strongSwan 4.2.6 and earlier allows remote attackers to cause a denial of service (daemon crash)...
strongSwan 4.2.6 and earlier allows remote attackers to cause a denial of service (daemon crash) via an IKE_SA_INIT message with a large number of NULL values in a Key Exchange payload, which triggers a NULL pointer dereference for the return value of the mpz_export function in the GNU Multiprecision Library (GMP).
- Record
GHSA-q36r-q874-43q3- Updated
- 2026-11-02
OSV No score
strongSwan 4.2.6 and earlier allows remote attackers to cause a denial of service (daemon crash) via an IKE_SA_INIT message with a large number of NULL values in a Key Exchange payload, which triggers a NULL pointer dereference for the return value of the mpz_export function in the GNU Multiprecision Library (GMP).
- Record
CVE-2008-4551- Updated
- 2026-11-02
OSVDEBIAN-CVE-2008-4551 No score
strongSwan 4.2.6 and earlier allows remote attackers to cause a denial of service (daemon crash) via an IKE_SA_INIT message with a large number of NULL values in a Key Exchange payload, which triggers a NULL pointer dereference for the return value of the mpz_export function in the GNU Multiprecision Library (GMP).
- Record
DEBIAN-CVE-2008-4551- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
strongswanDebian:12 |
before 4.2.4-5 | 4.2.4-5 |
strongswanDebian:13 |
before 4.2.4-5 | 4.2.4-5 |
strongswanDebian:14 |
before 4.2.4-5 | 4.2.4-5 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2008-4551 is a medium vulnerability (CVSS 5.0) in Strongswan, published October 14, 2008. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.52%, the 84th percentile. Fixed in strongswan 4.2.4-5.
References
vupen.com/english/advisories/2008/2660
securitytracker.com/id?1020903
securityfocus.com/bid/31291
labs.mudynamics.com/advisories/MU-200809-01.txt
secunia.com/advisories/31963
download.strongswan.org/CHANGES4.txt
nvd.nist.gov/vuln/detail/CVE-2008-4551
github.com/advisories/GHSA-q36r-q874-43q3
security-tracker.debian.org/tracker/CVE-2008-4551