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Fencer Vulns
medium 4.9

CVE-2008-2729 json

arch/x86_64/lib/copy_user.S in the Linux kernel before 2.6.19 on some AMD64 systems does not erase destination memory locations after an ex…

published 2008-06-30 18 y ago modified 2026-06-16 4 mo ago also EUVD-2008-2722

cvss
4.9
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 47%
public exploits
0
none known

Summary

arch/x86_64/lib/copy_user.S in the Linux kernel before 2.6.19 on some AMD64 systems does not erase destination memory locations after an exception during kernel memory copy, which allows local users to obtain sensitive information.

Patch / fix

  • linux linux_kernel 2.6.19
  • kernel RHEL 5 2.6.18-92.1.6.el5
  • kernel-PAE RHEL 5 2.6.18-92.1.6.el5
  • kernel-xen RHEL 5 2.6.18-92.1.6.el5
  • kernel-kdump RHEL 5 2.6.18-92.1.6.el5
  • kernel-debuginfo-common RHEL 5 2.6.18-92.1.6.el5
  • kernel RHEL 4 2.6.9-67.0.20.EL
  • kernel-smp RHEL 4 2.6.9-67.0.20.EL
  • kernel-xenU RHEL 4 2.6.9-67.0.20.EL

red hat advisories RHSA-2008:0519RHSA-2008:0508RHSA-2008:0585

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-2008-2729 updated

kernel: [x86_64] The string instruction version didn't zero the output on exception.

  • Red Hat MRG Realtime for RHEL 5 Server kernel-rt 2.6.24.7-74.el5rt, kernel-rt-trace 2.6.24.7-74.el5rt, kernel-rt-vanilla 2.6.24.7-74.el5rt, kernel-rt-debuginfo-common 2.6.24.7-74.el5rt
    fixed: vendor fix RHSA-2008:0585
  • Red Hat Enterprise Linux (v. 5 server) kernel 2.6.18-92.1.6.el5, kernel-PAE 2.6.18-92.1.6.el5, kernel-xen 2.6.18-92.1.6.el5, kernel-kdump 2.6.18-92.1.6.el5, kernel-debuginfo-common 2.6.18-92.1.6.el5
    fixed: vendor fix RHSA-2008:0519
  • Red Hat Enterprise Linux AS version 4 kernel 2.6.9-67.0.20.EL, kernel-smp 2.6.9-67.0.20.EL, kernel-xenU 2.6.9-67.0.20.EL, kernel-hugemem 2.6.9-67.0.20.EL, kernel-largesmp 2.6.9-67.0.20.EL
    fixed: vendor fix RHSA-2008:0508
  • Red Hat Enterprise Linux Desktop (v. 5 client) kernel 2.6.18-92.1.6.el5, kernel-PAE 2.6.18-92.1.6.el5, kernel-xen 2.6.18-92.1.6.el5, kernel-kdump 2.6.18-92.1.6.el5, kernel-debuginfo-common 2.6.18-92.1.6.el5
    fixed: vendor fix RHSA-2008:0519
  • Red Hat Enterprise Linux Desktop version 4 kernel 2.6.9-67.0.20.EL, kernel-smp 2.6.9-67.0.20.EL, kernel-xenU 2.6.9-67.0.20.EL, kernel-hugemem 2.6.9-67.0.20.EL, kernel-largesmp 2.6.9-67.0.20.EL Red Hat Enterprise Linux ES version 4 kernel 2.6.9-67.0.20.EL, kernel-smp 2.6.9-67.0.20.EL, kernel-xenU 2.6.9-67.0.20.EL, kernel-hugemem 2.6.9-67.0.20.EL, kernel-largesmp 2.6.9-67.0.20.EL Red Hat Enterprise Linux WS version 4 kernel 2.6.9-67.0.20.EL, kernel-smp 2.6.9-67.0.20.EL, kernel-xenU 2.6.9-67.0.20.EL, kernel-hugemem 2.6.9-67.0.20.EL, kernel-largesmp 2.6.9-67.0.20.EL
    fixed: vendor fix RHSA-2008:0508

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

0.57% chance of exploitation in the next 30 days, higher than 47% 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.