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Fencer Intel
low 2.1

CVE-2012-3430 json

The rds_recvmsg function in net/rds/recv.c in the Linux kernel before 3.0.44 does not initialize a certain structure member, which allows l…

published 2012-10-03 14 y ago modified 2026-06-16 4 mo ago also EUVD-2012-3397

cvss
2.1
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 61%
public exploits
1
Exploit-DB

Summary

The rds_recvmsg function in net/rds/recv.c in the Linux kernel before 3.0.44 does not initialize a certain structure member, which allows local users to obtain potentially sensitive information from kernel stack memory via a (1) recvfrom or (2) recvmsg system call on an RDS socket.

Patch / fix

  • linux Debian 14, Debian 13, Debian 12 3.2.29-1

debian advisories DEBIAN-CVE-2012-3430

  • kernel RHEL 5 2.6.18-308.16.1.el5
  • kernel-PAE RHEL 5 2.6.18-308.16.1.el5
  • kernel-xen RHEL 5 2.6.18-308.16.1.el5
  • kernel-kdump RHEL 5 2.6.18-308.16.1.el5
  • kernel-debuginfo-common RHEL 5 2.6.18-308.16.1.el5
  • kernel RHEL 6 2.6.32-279.9.1.el6
  • perf RHEL 6 2.6.32-279.9.1.el6
  • python-perf RHEL 6 2.6.32-279.9.1.el6

red hat advisories RHSA-2012:1323RHSA-2012:1304RHSA-2012:1491

  • kernel-ec2 SLES 11 SP4-LTSS 3.0.101-108.90.1
  • kernel-pae SLES 11 SP4-LTSS 3.0.101-108.90.1
  • kernel-xen SLES 11 SP4-LTSS 3.0.101-108.90.1
  • kernel-syms SLES 11 SP4-LTSS 3.0.101-108.90.1
  • kernel-ppc64 SLES 11 SP4-LTSS 3.0.101-108.90.1
  • kernel-trace SLES 11 SP4-LTSS 3.0.101-108.90.1
  • kernel-bigmem SLES 11 SP4-LTSS 3.0.101-108.90.1
  • kernel-source SLES 11 SP4-LTSS 3.0.101-108.90.1

suse advisories SUSE-SU-2019:14051-1

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-2012-3430 updated cvss 2.1

kernel: recv{from,msg}() on an rds socket can leak kernel memory

  • Red Hat Enterprise Linux 4 kernel
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux (v. 5 server) kernel 2.6.18-308.16.1.el5, kernel-PAE 2.6.18-308.16.1.el5, kernel-xen 2.6.18-308.16.1.el5, kernel-kdump 2.6.18-308.16.1.el5, kernel-debuginfo-common 2.6.18-308.16.1.el5 Red Hat Enterprise Linux Desktop (v. 5 client) kernel 2.6.18-308.16.1.el5, kernel-PAE 2.6.18-308.16.1.el5, kernel-xen 2.6.18-308.16.1.el5, kernel-debuginfo-common 2.6.18-308.16.1.el5
    fixed: vendor fix RHSA-2012:1323
  • Red Hat Enterprise Linux Desktop (v. 6) perf 2.6.32-279.9.1.el6, kernel 2.6.32-279.9.1.el6, kernel-firmware 2.6.32-279.9.1.el6, kernel-debuginfo-common-i686 2.6.32-279.9.1.el6, kernel-debuginfo-common-x86_64 2.6.32-279.9.1.el6 Red Hat Enterprise Linux Desktop Optional (v. 6) kernel 2.6.32-279.9.1.el6, python-perf 2.6.32-279.9.1.el6, kernel-debuginfo-common-i686 2.6.32-279.9.1.el6, kernel-debuginfo-common-x86_64 2.6.32-279.9.1.el6 Red Hat Enterprise Linux HPC Node (v. 6) perf 2.6.32-279.9.1.el6, kernel 2.6.32-279.9.1.el6, kernel-firmware 2.6.32-279.9.1.el6, kernel-debuginfo-common-x86_64 2.6.32-279.9.1.el6 Red Hat Enterprise Linux HPC Node Optional (v. 6) kernel 2.6.32-279.9.1.el6, python-perf 2.6.32-279.9.1.el6, kernel-debuginfo-common-x86_64 2.6.32-279.9.1.el6 Red Hat Enterprise Linux Server (v. 6) perf 2.6.32-279.9.1.el6, kernel 2.6.32-279.9.1.el6, kernel-kdump 2.6.32-279.9.1.el6, kernel-firmware 2.6.32-279.9.1.el6, kernel-bootwrapper 2.6.32-279.9.1.el6, kernel-debuginfo-common-i686 2.6.32-279.9.1.el6, +3 more Red Hat Enterprise Linux Server Optional (v. 6) kernel 2.6.32-279.9.1.el6, python-perf 2.6.32-279.9.1.el6, kernel-debuginfo-common-i686 2.6.32-279.9.1.el6, kernel-debuginfo-common-ppc64 2.6.32-279.9.1.el6, kernel-debuginfo-common-s390x 2.6.32-279.9.1.el6, kernel-debuginfo-common-x86_64 2.6.32-279.9.1.el6
    +2 more products
    Red Hat Enterprise Linux Workstation (v. 6) perf 2.6.32-279.9.1.el6, kernel 2.6.32-279.9.1.el6, kernel-firmware 2.6.32-279.9.1.el6, kernel-debuginfo-common-i686 2.6.32-279.9.1.el6, kernel-debuginfo-common-x86_64 2.6.32-279.9.1.el6 Red Hat Enterprise Linux Workstation Optional (v. 6) kernel 2.6.32-279.9.1.el6, python-perf 2.6.32-279.9.1.el6, kernel-debuginfo-common-i686 2.6.32-279.9.1.el6, kernel-debuginfo-common-x86_64 2.6.32-279.9.1.el6
    fixed: vendor fix RHSA-2012:1304
  • Red Hat MRG Realtime for RHEL 6 Server v.2 kernel-rt 3.2.33-rt50.66.el6rt, mrg-rt-release 3.2.33-rt50.66.el6rt, kernel-rt-trace 3.2.33-rt50.66.el6rt, kernel-rt-vanilla 3.2.33-rt50.66.el6rt, kernel-rt-firmware 3.2.33-rt50.66.el6rt, kernel-rt-debuginfo-common-x86_64 3.2.33-rt50.66.el6rt
    fixed: vendor fix RHSA-2012:1491

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

  1. First public exploit (EDB-37543)
  2. Published

Exploit prediction

0.95% chance of exploitation in the next 30 days, higher than 61% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • EDB-37543 Linux Kernel 2.6.x - 'rds_recvmsg()' Local Information Disclosure local, 2012-07-26
  • github.com https://github.com/torvalds/linux/commit/06b6a1cf6e776426766298d055bb3991957d90a7 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 2.1 AV:L/AC:L/Au:N/C:P/I:N/A:N

Classification

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

References

Sources

Fencer Intel 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.