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Fencer Vulns
high 7.2

CVE-2008-5702 json

Buffer underflow in the ibwdt_ioctl function in drivers/watchdog/ib700wdt.c in the Linux kernel before 2.6.28-rc1 might allow local users t…

published 2008-12-22 17 y ago modified 2026-06-16 4 mo ago also EUVD-2008-5673

cvss
7.2
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 42%
public exploits
0
none known

Summary

Buffer underflow in the ibwdt_ioctl function in drivers/watchdog/ib700wdt.c in the Linux kernel before 2.6.28-rc1 might allow local users to have an unknown impact via a certain /dev/watchdog WDIOC_SETTIMEOUT IOCTL call.

Patch / fix

  • kernel RHEL 4 2.6.9-78.0.13.EL
  • kernel-smp RHEL 4 2.6.9-78.0.13.EL
  • kernel-xenU RHEL 4 2.6.9-78.0.13.EL
  • kernel-hugemem RHEL 4 2.6.9-78.0.13.EL
  • kernel-largesmp RHEL 4 2.6.9-78.0.13.EL

red hat advisories RHSA-2009:0014

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-2008-5702 updated

kernel: watchdog: ib700wdt.c - buffer_underflow bug

  • Red Hat Enterprise Linux AS version 4 kernel 2.6.9-78.0.13.EL, kernel-smp 2.6.9-78.0.13.EL, kernel-xenU 2.6.9-78.0.13.EL, kernel-hugemem 2.6.9-78.0.13.EL, kernel-largesmp 2.6.9-78.0.13.EL Red Hat Enterprise Linux Desktop version 4 kernel 2.6.9-78.0.13.EL, kernel-smp 2.6.9-78.0.13.EL, kernel-xenU 2.6.9-78.0.13.EL, kernel-hugemem 2.6.9-78.0.13.EL, kernel-largesmp 2.6.9-78.0.13.EL Red Hat Enterprise Linux ES version 4 kernel 2.6.9-78.0.13.EL, kernel-smp 2.6.9-78.0.13.EL, kernel-xenU 2.6.9-78.0.13.EL, kernel-hugemem 2.6.9-78.0.13.EL, kernel-largesmp 2.6.9-78.0.13.EL Red Hat Enterprise Linux WS version 4 kernel 2.6.9-78.0.13.EL, kernel-smp 2.6.9-78.0.13.EL, kernel-xenU 2.6.9-78.0.13.EL, kernel-hugemem 2.6.9-78.0.13.EL, kernel-largesmp 2.6.9-78.0.13.EL
    fixed: vendor fix RHSA-2009:0014

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

0.49% chance of exploitation in the next 30 days, higher than 42% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • bugzilla.kernel.org http://bugzilla.kernel.org/show_bug.cgi?id=11399 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 7.2 AV:L/AC:L/Au:N/C:C/I:C/A:C

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
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.