CVE-2018-6555 — Use After Free in Kernel

CWE-416 — Use After FreeCWE-119 — Improper Restriction of Operations within the Bounds of a Memory Buffer20 documents8 sources
Severity
7.8HIGHNVD
OSV7.0OSV5.6OSV5.5
EPSS
0.1%
top 82.62%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
5
Linux KernelDebian LinuxLinux Kernel+2 more
Timeline
PublishedSep 4
Latest updateNov 9

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 use-after-free and system crash) or possibly have unspecified other impact via an AF_IRDA socket.

CVSS vector

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.8 | Impact: 5.9

Affected Packages5 packages

▶NVDlinux/linux_kernel< 4.17
▶Debianlinux/linux_kernel< 4.17.3-1+3
▶Ubuntulinux/linux_kernel< 3.13.0-160.210+2
▶CVEListV5linux_kernel/linux_kernelbefore 4.17
▶debiandebian/linux< linux 4.17.3-1 (bookworm)

Also affects: Debian Linux 8.0, 9.0, Ubuntu Linux 12.04, 14.04, 16.04, 18.04

Patches

Patch: www.spinics.net ↗Patch: www.spinics.net ↗Patch: www.spinics.net ↗

🔴Vulnerability Details

8
GHSA
GHSA-p95m-33p3-2qfr: The irda_setsockopt function in net/irda/af_irda↗2022-05-13
▶
OSV
linux-azure vulnerabilities↗2018-10-23
▶
OSV
linux vulnerabilities↗2018-10-01
▶
OSV
linux-hwe, linux-gcp vulnerabilities↗2018-10-01
▶
OSV
linux, linux-aws, linux-gcp, linux-kvm, linux-oem, linux-raspi2 vulnerabilities↗2018-10-01
▶

📋Vendor Advisories

9
Ubuntu
Linux kernel (Azure) vulnerabilities↗2018-10-23
▶
Ubuntu
Linux kernel (HWE) vulnerabilities↗2018-10-01
▶
Ubuntu
Linux kernel (Trusty HWE) vulnerabilities↗2018-10-01
▶
Ubuntu
Linux kernel vulnerabilities↗2018-10-01
▶
Ubuntu
Linux kernel (Xenial HWE) vulnerabilities↗2018-10-01
▶

📄Research Papers

1
arXiv
Take a Step Further: Understanding Page Spray in Linux Kernel Exploitation↗2024-11-09
▶

💬Community

1
Bugzilla
CVE-2018-6555 kernel: irda: use-after-free vulnerability in the hashbin list↗2018-08-29
▶