CVE-2008-2812

The Linux kernel before 2.6.25.10 does not properly perform tty operations, which allows local users to cause a denial of service (system crash) or possibly gain privileges via vectors involving NULL pointer dereference of function pointers in (1) hamradio/6pack.c, (2) hamradio/mkiss.c, (3) irda/irtty-sir.c, (4) ppp_async.c, (5) ppp_synctty.c, (6) slip.c, (7) wan/x25_asy.c, and (8) wireless/strip.c in drivers/net/.

Published: 2008-07-09 Last update: 2026-04-23 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2008-2812 is rated Low Risk (36/100): CVSS High severity, with low exploitation likelihood (EPSS 0.05%). 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-2008-2812

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 2025-03-30 0.04% 0.05% +0.01%
2 2025-03-29 0.05% 0.04% -0.01%
3 2025-03-17 — 0.05% —

Full EPSS history (5 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2008-2812

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-2008-2812

OS Trackers for CVE-2008-2812

vendor priority summary link
redhat medium — https://access.redhat.com/security/cve/CVE-2008-2812
ubuntu medium CVE-2008-2812 medium priority: Ubuntu including 4 source packages (linux, linux-source-2.6.15, linux-source-2.6.20, linux-source-2.6.22), 24 status rows across 6 suites (dapper, feisty, gutsy, hardy, intrepid, upstream): DNE 15, needs-triage 4, released 4, not-affected 1. https://ubuntu.com/security/CVE-2008-2812

Affected software / configurations for CVE-2008-2812

Vendor Product Version Raw CPE
linux linux_kernel < 2.6.25.10 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
canonical ubuntu_linux 6.06 cpe:2.3:o:canonical:ubuntu_linux:6.06:*:*:*:lts:*:*:*
canonical ubuntu_linux 7.04 cpe:2.3:o:canonical:ubuntu_linux:7.04:*:*:*:*:*:*:*
canonical ubuntu_linux 7.10 cpe:2.3:o:canonical:ubuntu_linux:7.10:*:*:*:*:*:*:*
canonical ubuntu_linux 8.04 cpe:2.3:o:canonical:ubuntu_linux:8.04:*:*:*:lts:*:*:*
novell linux_desktop 9 cpe:2.3:o:novell:linux_desktop:9:*:*:*:*:*:*:*
opensuse opensuse 10.3 cpe:2.3:o:opensuse:opensuse:10.3:*:*:*:*:*:*:*
opensuse opensuse 11.0 cpe:2.3:o:opensuse:opensuse:11.0:*:*:*:*:*:*:*
suse suse_linux_enterprise_desktop 10 cpe:2.3:o:suse:suse_linux_enterprise_desktop:10:sp1:*:*:*:*:*:*
suse suse_linux_enterprise_desktop 10 cpe:2.3:o:suse:suse_linux_enterprise_desktop:10:sp2:*:*:*:*:*:*
suse suse_linux_enterprise_server 10 cpe:2.3:o:suse:suse_linux_enterprise_server:10:sp1:*:*:*:*:*:*
suse suse_linux_enterprise_server 10 cpe:2.3:o:suse:suse_linux_enterprise_server:10:sp2:*:*:*:*:*:*
debian debian_linux 4.0 cpe:2.3:o:debian:debian_linux:4.0:*:*:*:*:*:*:*
avaya communication_manager >= 3.1 cpe:2.3:a:avaya:communication_manager:*:*:*:*:*:*:*:*
avaya expanded_meet-me_conferencing — cpe:2.3:a:avaya:expanded_meet-me_conferencing:*:*:*:*:*:*:*:*
avaya intuity_audix_lx 2.0 cpe:2.3:a:avaya:intuity_audix_lx:2.0:*:*:*:*:*:*:*
avaya meeting_exchange 5.0 cpe:2.3:a:avaya:meeting_exchange:5.0:*:*:*:*:*:*:*
avaya message_networking 3.1 cpe:2.3:a:avaya:message_networking:3.1:*:*:*:*:*:*:*
avaya messaging_storage_server 4.0 cpe:2.3:a:avaya:messaging_storage_server:4.0:*:*:*:*:*:*:*
avaya proactive_contact 4.0 cpe:2.3:a:avaya:proactive_contact:4.0:*:*:*:*:*:*:*
avaya sip_enablement_services — cpe:2.3:a:avaya:sip_enablement_services:-:*:*:*:*:*:*:*
avaya sip_enablement_services 4.0 cpe:2.3:a:avaya:sip_enablement_services:4.0:*:*:*:*:*:*:*

References for CVE-2008-2812

URL Tags
http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.6.25.y.git%3Ba=commitdiff%3Bh=2a739dd53ad7ee010ae6e155438507f329dce788
http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.25.10 Broken Link
http://lists.opensuse.org/opensuse-security-announce/2008-07/msg00007.html Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2008-07/msg00009.html Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2008-07/msg00012.html Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2008-10/msg00000.html Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2008-10/msg00003.html Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2008-10/msg00008.html Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2008-11/msg00001.html Mailing List Third Party Advisory
http://secunia.com/advisories/30982 Broken Link
http://secunia.com/advisories/31048 Broken Link
http://secunia.com/advisories/31202 Broken Link
http://secunia.com/advisories/31229 Broken Link
http://secunia.com/advisories/31341 Broken Link
http://secunia.com/advisories/31551 Broken Link
http://secunia.com/advisories/31614 Broken Link
http://secunia.com/advisories/31685 Broken Link
http://secunia.com/advisories/32103 Broken Link
http://secunia.com/advisories/32370 Broken Link
http://secunia.com/advisories/32759 Broken Link
http://secunia.com/advisories/33201 Broken Link
http://support.avaya.com/elmodocs2/security/ASA-2008-365.htm Third Party Advisory
http://www.debian.org/security/2008/dsa-1630 Patch Third Party Advisory
http://www.openwall.com/lists/oss-security/2008/07/03/2 Mailing List Patch Third Party Advisory
http://www.redhat.com/support/errata/RHSA-2008-0612.html Broken Link
http://www.redhat.com/support/errata/RHSA-2008-0665.html Broken Link
http://www.redhat.com/support/errata/RHSA-2008-0973.html Broken Link
http://www.securityfocus.com/bid/30076 Patch Third Party Advisory VDB Entry
http://www.vupen.com/english/advisories/2008/2063/references Broken Link
https://exchange.xforce.ibmcloud.com/vulnerabilities/43687 Third Party Advisory VDB Entry
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11632 Third Party Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6633 Third Party Advisory
https://usn.ubuntu.com/637-1/ Third Party Advisory
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