01 Record

CVE-2018-6555

The irda_setsockopt function in net/irda/af_irda.c and later in drivers/staging/irda/net/af_irda.c in the Linux kernel before 4.17 allows local users to cause a denial of service (ias_object

UnratedPUBLISHEDCNA: canonical

CNA base scoreUnratedNo CNA CVSS vector

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02 Description

The irda_setsockopt function in net/irda/af_irda.c and later in drivers/staging/irda/net/af_irda.c in the Linux kernel before 4.17 allows local users to cause a denial of service (ias_object

03 Exploitation and scoring

Exploitation: Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision: Not assessed by CISA
EPSS probability: 0.49% probability of exploitation activity in the next 30 days.
EPSS percentile: Equal to or higher than the score of 42.3% of scored records. A rank, not a probability.
NVD base score: 7.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD analysis status: Modified. NVD last modified this record on 2026-06-17.
Red Hat severity: No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2018-09-04 18:00Z8 YR AGO

Last updated

2024-09-16 23:42Z2 YR AGO

Reserved

2018-02-02

Assigning CNA

canonical

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

CWE-416Use After FreeVariant
CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferClass

Data version

5.1

Document digest

0b16508cde0aaf9a720c713912846b135082d65796aef485acd9238011f824b8

05 Affected products

VendorProductVersionsPlatforms

Linux KernelLinux Kernelbefore 4.17—

06 References

usn.ubuntu.comUSN-3776-1https://usn.ubuntu.com/3776-1/vendor-advisoryx_refsource_UBUNTU
usn.ubuntu.comUSN-3776-2https://usn.ubuntu.com/3776-2/vendor-advisoryx_refsource_UBUNTU
www.spinics.net[stable] 20180904 [PATCH 2/2] irda: Only insert new objects into the global database via setsockopthttps://www.spinics.net/lists/stable/msg255035.htmlmailing-listx_refsource_MLIST
usn.ubuntu.comUSN-3777-1https://usn.ubuntu.com/3777-1/vendor-advisoryx_refsource_UBUNTU
usn.ubuntu.comUSN-3775-1https://usn.ubuntu.com/3775-1/vendor-advisoryx_refsource_UBUNTU
lists.debian.org[debian-lts-announce] 20181003 [SECURITY] [DLA 1531-1] linux-4.9 security updatehttps://lists.debian.org/debian-lts-announce/2018/10/msg00003.htmlmailing-listx_refsource_MLIST
www.debian.orgDSA-4308https://www.debian.org/security/2018/dsa-4308vendor-advisoryx_refsource_DEBIAN
usn.ubuntu.comUSN-3775-2https://usn.ubuntu.com/3775-2/vendor-advisoryx_refsource_UBUNTU
www.securityfocus.com105304http://www.securityfocus.com/bid/105304vdb-entryx_refsource_BID
usn.ubuntu.comUSN-3777-2https://usn.ubuntu.com/3777-2/vendor-advisoryx_refsource_UBUNTU
www.spinics.net[stable] 20180904 [PATCH 2/2] irda: Only insert new objects into the global database via setsockopthttps://www.spinics.net/lists/stable/msg255031.htmlmailing-listx_refsource_MLIST
usn.ubuntu.comUSN-3777-3https://usn.ubuntu.com/3777-3/vendor-advisoryx_refsource_UBUNTU

07 Fixed in

Debian 12

linux
Fixed in 4.17.3-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

linux
Fixed in 4.17.3-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

linux
Fixed in 4.17.3-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.