CVE-2008-7256 json
mm/shmem.c in the Linux kernel before 2.6.28-rc8, when strict overcommit is enabled and CONFIG_SECURITY is disabled, does not properly hand…
published 2010-06-03 16 y ago modified 2026-06-16 4 mo ago also EUVD-2008-7212
- cvss
- 1.2
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 27%
- public exploits
- 0
- none known
Summary
mm/shmem.c in the Linux kernel before 2.6.28-rc8, when strict overcommit is enabled and CONFIG_SECURITY is disabled, does not properly handle the export of shmemfs objects by knfsd, which allows attackers to cause a denial of service (NULL pointer dereference and knfsd crash) or possibly have unspecified other impact via unknown vectors. NOTE: this vulnerability exists because of an incomplete fix for CVE-2010-1643.
Patch / fix
- kernel-rt enterprise mrg 1 2.6.24.7-161.el5rt
- kernel-rt-trace enterprise mrg 1 2.6.24.7-161.el5rt
- kernel-rt-vanilla enterprise mrg 1 2.6.24.7-161.el5rt
- kernel-rt-firmware enterprise mrg 1 2.6.24.7-161.el5rt
- kernel-rt-debuginfo-common enterprise mrg 1 2.6.24.7-161.el5rt
red hat advisories RHSA-2010:0631
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-2008-7256 updated cvss 6.9
kernel: nfsd: fix vm overcommit crash
-
Red Hat MRG Realtime for RHEL 5 Server kernel-rt 2.6.24.7-161.el5rt, kernel-rt-trace 2.6.24.7-161.el5rt, kernel-rt-vanilla 2.6.24.7-161.el5rt, kernel-rt-firmware 2.6.24.7-161.el5rt, kernel-rt-debuginfo-common 2.6.24.7-161.el5rtfixed: vendor fix RHSA-2010:0631
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
0.34% chance of exploitation in the next 30 days, higher than 27% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 1.2 | AV:L/AC:H/Au:N/C:N/I:N/A:P |
Classification
- Technology feeds
References
-
mandriva.com
/security/advisories?name=MDVSA-2010:198
vendor-advisory
- bugzilla.redhat.com /show_bug.cgi?id=595970
- kernel.org /pub/linux/kernel/v2.6/testing/v2.6.28/ChangeLog-2.6.28-rc8
-
exchange.xforce.ibmcloud.com
/vulnerabilities/59224
vdb-entry
-
openwall.com
/lists/oss-security/2010/05/27/1
mailing-list
- git.kernel.org /?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=1b79cd04fab80be61dcd2732e2423aafde9a4c1c
Sources
- CVE List CVE-2008-7256
- NVD CVE-2008-7256
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.