CVE-2007-1861 json
The nl_fib_lookup function in net/ipv4/fib_frontend.c in Linux Kernel before 2.6.20.8 allows attackers to cause a denial of service (kernel…
published 2007-05-07 19 y ago modified 2026-06-16 4 mo ago also EUVD-2007-1855
- cvss
- 4.9
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.0%
- EPSS 1.0% chance of exploitation in 30 days, percentile 63%
- public exploits
- 1
- Exploit-DB
Summary
The nl_fib_lookup function in net/ipv4/fib_frontend.c in Linux Kernel before 2.6.20.8 allows attackers to cause a denial of service (kernel panic) via NETLINK_FIB_LOOKUP replies, which trigger infinite recursion and a stack overflow.
Patch / fix
- kernel RHEL 5 2.6.18-8.1.4.el5
- kernel-PAE RHEL 5 2.6.18-8.1.4.el5
- kernel-xen RHEL 5 2.6.18-8.1.4.el5
- kernel-kdump RHEL 5 2.6.18-8.1.4.el5
- kernel-debuginfo-common RHEL 5 2.6.18-8.1.4.el5
red hat advisories RHSA-2007:0347
Vendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
red hat product security vex CVE-2007-1861 updated
infinite recursion in netlink
-
Red Hat Enterprise Linux (v. 5 server) kernel 2.6.18-8.1.4.el5, kernel-PAE 2.6.18-8.1.4.el5, kernel-xen 2.6.18-8.1.4.el5, kernel-kdump 2.6.18-8.1.4.el5, kernel-debuginfo-common 2.6.18-8.1.4.el5 Red Hat Enterprise Linux Desktop (v. 5 client) kernel 2.6.18-8.1.4.el5, kernel-PAE 2.6.18-8.1.4.el5, kernel-xen 2.6.18-8.1.4.el5, kernel-kdump 2.6.18-8.1.4.el5, kernel-debuginfo-common 2.6.18-8.1.4.el5fixed: vendor fix RHSA-2007:0347
Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf
Timeline
- First public exploit (EDB-29916)
- Published
Exploit prediction
1.02% chance of exploitation in the next 30 days, higher than 63% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- EDB-29916 Linux Kernel 2.6.x - NETLINK_FIB_LOOKUP Local Denial of Service dos, 2007-04-26
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 4.9 | AV:L/AC:L/Au:N/C:N/I:N/A:C |
Classification
- Weakness
-
- CWE-399 Resource Management Errors
- Technology feeds
References
-
issues.rpath.com
/browse/RPL-1309
patch
-
redhat.com
/support/errata/RHSA-2007-0347.html
vendor-advisory
-
novell.com
/linux/security/advisories/2007_43_kernel.html
vendor-advisory
-
mandriva.com
/security/advisories?name=MDKSA-2007:171
vendor-advisory
-
debian.org
/security/2007/dsa-1289
vendor-advisory
-
ubuntu.com
/usn/usn-489-1
vendor-advisory
-
ubuntu.com
/usn/usn-486-1
vendor-advisory
-
secunia.com
/advisories/25030
third-party-advisory, vendor-advisory
-
secunia.com
/advisories/25288
third-party-advisory, vendor-advisory
-
secunia.com
/advisories/25083
third-party-advisory, vendor-advisory
-
secunia.com
/advisories/26620
third-party-advisory, vendor-advisory
-
vupen.com
/english/advisories/2007/1595
vdb-entry, vendor-advisory
-
secunia.com
/advisories/25228
third-party-advisory, vendor-advisory
-
secunia.com
/advisories/25961
third-party-advisory, vendor-advisory
-
secunia.com
/advisories/25691
third-party-advisory, vendor-advisory
-
secunia.com
/advisories/26139
third-party-advisory, vendor-advisory
-
secunia.com
/advisories/26133
third-party-advisory, vendor-advisory
-
securityfocus.com
/archive/1/467939/30/6690/threaded
mailing-list
-
securityfocus.com
/bid/23677
vdb-entry
- kernel.org /pub/linux/kernel/v2.6/ChangeLog-2.6.20.8
-
exchange.xforce.ibmcloud.com
/vulnerabilities/34014
vdb-entry
-
securityfocus.com
/archive/1/471457
mailing-list
-
oval.cisecurity.org
/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11616
vdb-entry, signature
- bugzilla.redhat.com /bugzilla/show_bug.cgi?id=237913
Sources
- CVE List CVE-2007-1861
- NVD CVE-2007-1861
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.