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Fencer Vulns
medium 4.9

CVE-2008-3535 json

Off-by-one error in the iov_iter_advance function in mm/filemap.c in the Linux kernel before 2.6.27-rc2 allows local users to cause a denia…

published 2008-08-08 18 y ago modified 2026-06-16 4 mo ago also EUVD-2008-3521

cvss
4.9
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 45%
public exploits
0
none known

Summary

Off-by-one error in the iov_iter_advance function in mm/filemap.c in the Linux kernel before 2.6.27-rc2 allows local users to cause a denial of service (system crash) via a certain sequence of file I/O operations with readv and writev, as demonstrated by testcases/kernel/fs/ftest/ftest03 from the Linux Test Project.

Patch / fix

  • linux linux_kernel 2.6.27
  • kernel-rt enterprise mrg 1 2.6.24.7-81.el5rt
  • kernel-rt-trace enterprise mrg 1 2.6.24.7-81.el5rt
  • kernel-rt-vanilla enterprise mrg 1 2.6.24.7-81.el5rt
  • kernel-rt-debuginfo-common enterprise mrg 1 2.6.24.7-81.el5rt

red hat advisories RHSA-2008:0857

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-2008-3535 updated

kernel: fix off-by-one error in iov_iter_advance()

  • Red Hat MRG Realtime for RHEL 5 Server kernel-rt 2.6.24.7-81.el5rt, kernel-rt-trace 2.6.24.7-81.el5rt, kernel-rt-vanilla 2.6.24.7-81.el5rt, kernel-rt-debuginfo-common 2.6.24.7-81.el5rt
    fixed: vendor fix RHSA-2008:0857

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

0.53% chance of exploitation in the next 30 days, higher than 45% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • lkml.org http://www.lkml.org/lkml/2008/7/30/446 referenced PoC, tagged "exploit" by a source, unverified

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
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.