CVE-2010-2492

Buffer overflow in the ecryptfs_uid_hash macro in fs/ecryptfs/messaging.c in the eCryptfs subsystem in the Linux kernel before 2.6.35 might allow local users to gain privileges or cause a denial of service (system crash) via unspecified vectors.

Published: 2010-09-08 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2010-2492 is rated Low Risk (39/100): CVSS High severity, with low exploitation likelihood (EPSS 0.07%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2010-2492

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-12-10 0.04% 0.07% +0.03%
2 2023-03-07 1.28% 0.04% -1.24%
3 2023-02-13 — 1.28% —

Full EPSS history (5 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2010-2492

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.8 3.1 HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.8 5.9 [email protected]
7.2 2.0 HIGH
AV:L/AC:L/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 3.9 10.0 [email protected]

Weakness enumeration for CVE-2010-2492

OS Trackers for CVE-2010-2492

vendor priority summary link
redhat high — https://access.redhat.com/security/cve/CVE-2010-2492
ubuntu low CVE-2010-2492 low priority: Ubuntu including 2 source packages (linux, linux-source-2.6.15), 12 status rows across 6 suites (dapper, hardy, jaunty, karmic, lucid, upstream): DNE 5, released 4, not-affected 2, pending 1. https://ubuntu.com/security/CVE-2010-2492

Affected software / configurations for CVE-2010-2492

Vendor Product Version Raw CPE
linux linux_kernel < 2.6.35 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
vmware esx 4.0 cpe:2.3:o:vmware:esx:4.0:*:*:*:*:*:*:*
vmware esx 4.1 cpe:2.3:o:vmware:esx:4.1:*:*:*:*:*:*:*
avaya aura_communication_manager 5.2 cpe:2.3:a:avaya:aura_communication_manager:5.2:*:*:*:*:*:*:*
avaya aura_presence_services 6.0 cpe:2.3:a:avaya:aura_presence_services:6.0:*:*:*:*:*:*:*
avaya aura_presence_services 6.1 cpe:2.3:a:avaya:aura_presence_services:6.1:*:*:*:*:*:*:*
avaya aura_presence_services 6.1.1 cpe:2.3:a:avaya:aura_presence_services:6.1.1:*:*:*:*:*:*:*
avaya aura_session_manager 1.1 cpe:2.3:a:avaya:aura_session_manager:1.1:*:*:*:*:*:*:*
avaya aura_session_manager 5.2 cpe:2.3:a:avaya:aura_session_manager:5.2:*:*:*:*:*:*:*
avaya aura_session_manager 6.0 cpe:2.3:a:avaya:aura_session_manager:6.0:*:*:*:*:*:*:*
avaya aura_system_manager 5.2 cpe:2.3:a:avaya:aura_system_manager:5.2:*:*:*:*:*:*:*
avaya aura_system_manager 6.0 cpe:2.3:a:avaya:aura_system_manager:6.0:*:*:*:*:*:*:*
avaya aura_system_manager 6.1 cpe:2.3:a:avaya:aura_system_manager:6.1:*:*:*:*:*:*:*
avaya aura_system_manager 6.1.1 cpe:2.3:a:avaya:aura_system_manager:6.1.1:*:*:*:*:*:*:*
avaya aura_system_platform 1.1 cpe:2.3:a:avaya:aura_system_platform:1.1:*:*:*:*:*:*:*
avaya aura_system_platform 6.0 cpe:2.3:a:avaya:aura_system_platform:6.0:-:*:*:*:*:*:*
avaya aura_system_platform 6.0 cpe:2.3:a:avaya:aura_system_platform:6.0:sp1:*:*:*:*:*:*
avaya aura_voice_portal 5.0 cpe:2.3:a:avaya:aura_voice_portal:5.0:*:*:*:*:*:*:*
avaya aura_voice_portal 5.1 cpe:2.3:a:avaya:aura_voice_portal:5.1:-:*:*:*:*:*:*
avaya aura_voice_portal 5.1 cpe:2.3:a:avaya:aura_voice_portal:5.1:sp1:*:*:*:*:*:*
avaya iq 5.0 cpe:2.3:a:avaya:iq:5.0:*:*:*:*:*:*:*
avaya iq 5.1 cpe:2.3:a:avaya:iq:5.1:*:*:*:*:*:*:*

References for CVE-2010-2492

URL Tags
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=a6f80fb7b5986fda663d94079d3bba0937a6b6ff
http://secunia.com/advisories/42890 Broken Link
http://secunia.com/advisories/46397 Broken Link
http://support.avaya.com/css/P8/documents/100113326 Third Party Advisory
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.35 Broken Link
http://www.mandriva.com/security/advisories?name=MDVSA-2010:172 Broken Link
http://www.mandriva.com/security/advisories?name=MDVSA-2010:198 Broken Link
http://www.redhat.com/support/errata/RHSA-2010-0723.html Broken Link
http://www.redhat.com/support/errata/RHSA-2011-0007.html Broken Link
http://www.securityfocus.com/archive/1/520102/100/0/threaded Third Party Advisory VDB Entry
http://www.vmware.com/security/advisories/VMSA-2011-0012.html Patch Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=611385 Issue Tracking Patch Third Party Advisory
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