What’s Vulnerable › Vulnerabilities

CVE-2014-7145

• Severity: high (CVSS 7.8 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2014-09-28 · updated 2026-06-17
• Weakness: CWE-399

Description

The SMB2_tcon function in fs/cifs/smb2pdu.c in the Linux kernel before 3.16.3 allows remote CIFS servers to cause a denial of service (NULL pointer dereference and client system crash) or possibly have unspecified other impact by deleting the IPC$ share during resolution of DFS referrals.

Affected products

• Canonical Ubuntu Linux: 12.04
• Linux kernel: from 3.6 before 3.10.55; from 3.11 before 3.12.29; from 3.13 before 3.14.19; from 3.15 before 3.16.3 — fixed in 3.10.55, 3.12.29, 3.14.19, 3.16.3
• RedHat Enterprise Linux Desktop: 7.0
• RedHat Enterprise Linux Hpc Node: 7.0
• RedHat Enterprise Linux Server: 7.0
• RedHat Enterprise Linux Workstation: 7.0

How to fix

Upgrade to a fixed version: Linux kernel 3.10.55, 3.12.29, 3.14.19, 3.16.3. Check the vendor advisory for mitigations.

References

• http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=18f39e7be0121317550d03e267e3ebd4dbfbb3ce
• http://rhn.redhat.com/errata/RHSA-2015-0102.html
• http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.16.3
• http://www.openwall.com/lists/oss-security/2014/09/22/4
• http://www.securityfocus.com/bid/69867
• http://www.ubuntu.com/usn/USN-2394-1
• https://github.com/torvalds/linux/commit/18f39e7be0121317550d03e267e3ebd4dbfbb3ce
• http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=18f39e7be0121317550d03e267e3ebd4dbfbb3ce
• http://rhn.redhat.com/errata/RHSA-2015-0102.html
• http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.16.3
• http://www.openwall.com/lists/oss-security/2014/09/22/4
• http://www.securityfocus.com/bid/69867

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