CVE-2014-0203 — Use After Free in Kernel

CWE-416 — Use After Free11 documents9 sources
Severity
5.5MEDIUMNVD
EPSS
0.1%
top 79.55%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Linux KernelOracle Linux
Timeline
PublishedJun 23
Latest updateMay 13

Description

The __do_follow_link function in fs/namei.c in the Linux kernel before 2.6.33 does not properly handle the last pathname component during use of certain filesystems, which allows local users to cause a denial of service (incorrect free operations and system crash) via an open system call.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6

Affected Packages3 packages

▶NVDlinux/linux_kernel< 2.6.33
▶Debianlinux/linux_kernel< 2.6.33-1+3
▶NVDoracle/linux5, 6+1

Patches

Patch: bugzilla.redhat.com ↗Patch: github.com ↗Patch: bugzilla.redhat.com ↗

🔴Vulnerability Details

3
GHSA
GHSA-48m7-cf7p-jqm7: The __do_follow_link function in fs/namei↗2022-05-13
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CVEList
CVE-2014-0203: The __do_follow_link function in fs/namei↗2014-06-23
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OSV
CVE-2014-0203: The __do_follow_link function in fs/namei↗2014-06-23
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📋Vendor Advisories

4
Ubuntu
Linux kernel (EC2) vulnerabilities↗2014-09-02
▶
Ubuntu
Linux kernel vulnerabilities↗2014-09-02
▶
Red Hat
kernel: fs: slab corruption due to the invalid last component type during do_filp_open()↗2014-06-19
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Debian
CVE-2014-0203: linux - The __do_follow_link function in fs/namei.c in the Linux kernel before 2.6.33 do...↗2014
▶

💬Community

1
Bugzilla
CVE-2014-0203 kernel: fs: slab corruption due to the invalid last component type during do_filp_open()↗2014-05-05
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CVE-2014-0203 — Use After Free in Linux Kernel | cvebase