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CVE-2011-1598

18
FAUCET Score

CVE-2011-1598 describes a denial-of-service vulnerability in the Linux kernel's bcm.c module, affecting versions prior to 2.6.39-rc6. This flaw, a NULL pointer dereference (CWE-476), can be triggered by a local attacker through a crafted release operation on a socket data structure. With a CVSS score of 4.9 (AV:L/AC:L/Au:N/C:N/I:N/A:C), it indicates low attack complexity and local access requirements, primarily leading to system unavailability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.6.39CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
2.6.39CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:2.6.39:-:*:*:*:*:*:*
2.6.39CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:2.6.39:rc1:*:*:*:*:*:*
2.6.39CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:2.6.39:rc2:*:*:*:*:*:*
2.6.39CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:2.6.39:rc3:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.9MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Exploitability Score
3.9
Impact Score
6.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.42%
Probability of exploitation in next 30 days
EPSS Percentile
34.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0042 is in the 64th percentile among its peer group of 3,050 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

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

Remediation

Patch Available

Vendor Patches (3)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: kernel-0:2.6.32-131.2.1.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise MRG 2Fixed in: kernel-rt-0:2.6.33.9-rt31.75.el6rt
View patch
redhatno patchvia redhat_api
Product: Red Hat Enterprise MRG 1Fixed in: kernel-rt

Vendor Advisories (1)

redhatCVE-2011-1598Moderate

kernel: missing check in can/bcm and can/raw socket releases

Apr 20, 2011

References

git.kernel.org
openwall.com / lists/oss-security/2011/04/20/2
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2011/04/20/6
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2011/04/20/7
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2011/04/21/1
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2011/04/21/2
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2011/04/21/7
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2011/04/22/2
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2011/04/25/4
Mailing ListThird Party Advisory
permalink.gmane.org / gmane.linux.network/192898
Broken Link
bugzilla.redhat.com / show_bug.cgi
Issue TrackingThird Party Advisory
kernel.org / pub/linux/kernel/v2.6/testing/ChangeLog-2.6.39-rc6
Broken Link
securityfocus.com / bid/47503
Third Party AdvisoryVDB Entry