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CVE-2009-2903

24
FAUCET Score

CVE-2009-2903 describes a memory leak vulnerability in the AppleTalk subsystem of the Linux kernel (versions 2.4.x up to 2.4.37.6 and 2.6.x up to 2.6.31), affecting distributions like Canonical and SUSE. This flaw allows remote attackers to trigger a denial of service by sending IP-DDP datagrams, leading to memory consumption when the appletalk and ipddp modules are loaded but the ipddp"N" device is absent. Rated with a CVSS score of 7.1, it is a high-severity vulnerability with a network attack vector and medium attack complexity, potentially causing system unavailability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 2.4.0, <= 2.4.37.6CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 2.6.0, <= 2.6.31CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
10CPE matchmatch criteria
cpe:2.3:a:suse:linux_enterprise_debuginfo:10:sp2:*:*:*:*:*:*
10CPE matchmatch criteria
cpe:2.3:a:suse:linux_enterprise_debuginfo:10:sp3:*:*:*:*:*:*
10CPE matchmatch criteria
cpe:2.3:o:suse:linux_enterprise_desktop:10:sp2:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.1HIGH

AV:N/AC:M/Au:N/C:N/I:N/A:C

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
6.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
3.85%
Probability of exploitation in next 30 days
EPSS Percentile
89.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0385 is in the 51st percentile among its peer group of 8,920 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2009-2903Important

kernel: appletalk: denial of service when handling IP tunnelled over DDP datagrams

Sep 11, 2009

References

git.kernel.org
lists.opensuse.org / opensuse-security-announce/2009-12/msg00002.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2009-12/msg00005.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2010-02/msg00005.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2010-02/msg00007.html
Mailing ListThird Party Advisory
bugzilla.redhat.com / show_bug.cgi
Issue TrackingThird Party Advisory
secunia.com / advisories/36707
Third Party Advisory
secunia.com / advisories/37105
Third Party Advisory
secunia.com / advisories/37909
Third Party Advisory
mandriva.com / security/advisories
Third Party Advisory
openwall.com / lists/oss-security/2009/09/14/1
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2009/09/14/2
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2009/09/17/11
Mailing ListThird Party Advisory
securityfocus.com / bid/36379
Third Party AdvisoryVDB Entry
ubuntu.com / usn/USN-852-1
Third Party Advisory