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Fencer Vulns
medium 4.9

CVE-2005-4881 json

The netlink subsystem in the Linux kernel 2.4.x before 2.4.37.6 and 2.6.x before 2.6.13-rc1 does not initialize certain padding fields in s…

published 2009-10-19 17 y ago modified 2026-06-16 4 mo ago also EUVD-2005-4872

cvss
4.9
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 32%
public exploits
0
none known

Summary

The netlink subsystem in the Linux kernel 2.4.x before 2.4.37.6 and 2.6.x before 2.6.13-rc1 does not initialize certain padding fields in structures, which might allow local users to obtain sensitive information from kernel memory via unspecified vectors, related to the (1) tc_fill_qdisc, (2) tcf_fill_node, (3) neightbl_fill_info, (4) neightbl_fill_param_info, (5) neigh_fill_info, (6) rtnetlink_fill_ifinfo, (7) rtnetlink_fill_iwinfo, (8) vif_delete, (9) ipmr_destroy_unres, (10) ipmr_cache_alloc_unres, (11) ipmr_cache_resolve, (12) inet6_fill_ifinfo, (13) tca_get_fill, (14) tca_action_flush, (15) tcf_add_notify, (16) tc_dump_action, (17) cbq_dump_police, (18) __nlmsg_put, (19) __rta_fill, (20) __rta_reserve, (21) inet6_fill_prefix, (22) rsvp_dump, and (23) cbq_dump_ovl functions.

Patch / fix

  • kernel RHEL 4 2.6.9-89.0.15.EL
  • kernel-smp RHEL 4 2.6.9-89.0.15.EL
  • kernel-xenU RHEL 4 2.6.9-89.0.15.EL
  • kernel-hugemem RHEL 4 2.6.9-89.0.15.EL
  • kernel-largesmp RHEL 4 2.6.9-89.0.15.EL

red hat advisories RHSA-2009:1522

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-2005-4881 updated cvss 2.1

kernel: netlink: fix numerous padding memleaks

  • Red Hat Enterprise Linux AS version 4 kernel 2.6.9-89.0.15.EL, kernel-smp 2.6.9-89.0.15.EL, kernel-xenU 2.6.9-89.0.15.EL, kernel-hugemem 2.6.9-89.0.15.EL, kernel-largesmp 2.6.9-89.0.15.EL Red Hat Enterprise Linux Desktop version 4 kernel 2.6.9-89.0.15.EL, kernel-smp 2.6.9-89.0.15.EL, kernel-xenU 2.6.9-89.0.15.EL, kernel-hugemem 2.6.9-89.0.15.EL, kernel-largesmp 2.6.9-89.0.15.EL Red Hat Enterprise Linux ES version 4 kernel 2.6.9-89.0.15.EL, kernel-smp 2.6.9-89.0.15.EL, kernel-xenU 2.6.9-89.0.15.EL, kernel-hugemem 2.6.9-89.0.15.EL, kernel-largesmp 2.6.9-89.0.15.EL Red Hat Enterprise Linux WS version 4 kernel 2.6.9-89.0.15.EL, kernel-smp 2.6.9-89.0.15.EL, kernel-xenU 2.6.9-89.0.15.EL, kernel-hugemem 2.6.9-89.0.15.EL, kernel-largesmp 2.6.9-89.0.15.EL
    fixed: vendor fix RHSA-2009:1522

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

Exploit prediction

0.38% chance of exploitation in the next 30 days, higher than 32% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 2.0 4.9 AV:L/AC:L/Au:N/C:C/I:N/A:N

Classification

Weakness
  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
Technology feeds

References

Sources

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.