SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2009-3939

The poll_mode_io file for the megaraid_sas driver in the Linux kernel 2.6.31.6 and earlier has world-writable permissions, which allows local users to change the I/O mode of the driver by modifying this file.

HIGH 7.1EPSS 0.44%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.44%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

The poll_mode_io file for the megaraid_sas driver in the Linux kernel 2.6.31.6 and earlier has world-writable permissions, which allows local users to change the I/O mode of the driver by modifying this file.

CVSS 3.1
7.1 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
EPSS
0.44% probability · 38th percentile
CISA KEV
Not listed
Weakness
CWE-732
Affected
linux/linux kernel · redhat/virtualization · redhat/enterprise linux desktop · redhat/enterprise linux eus · redhat/enterprise linux server · redhat/enterprise linux workstation · canonical/ubuntu linux · debian/debian linux · avaya/aura application enablement services · avaya/aura communication manager · avaya/aura session manager · avaya/aura sip enablement services · avaya/aura system manager · avaya/aura system platform · avaya/voice portal · opensuse/opensuse · suse/linux enterprise desktop · suse/linux enterprise server
Source
cve@mitre.org

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.