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…

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.

Scores

EPSS (exploitation in 30 days)

3.7% · top 10% of all CVEs (3 Nov 2026)

Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.

Weakness

• n/a
• CWE-399 (opens in a new tab)

Affected products

• n/a

  • affected n/a

References (7)

• USN-2394-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
• [oss-security] 20140922 Re: CVE request: [CIFS] Possible null ptr deref in SMB2_tcon / Linux kernel (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
• https://github.com/torvalds/linux/commit/18f39e7be0121317550d03e267e3ebd4dbfbb3ce (opens in a new tab)x_refsource_CONFIRMx_transferred
• http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.16.3 (opens in a new tab)x_refsource_CONFIRMx_transferred
• 69867 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
• RHSA-2015:0102 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=18f39e7be0121317550d03e267e3ebd4dbfbb3ce (opens in a new tab)x_refsource_CONFIRMx_transferred

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Record last updated 6 Aug 2024, 12:40 UTC.