The (1) SSH_MSG_NEWKEYS and (2) SSH_MSG_KEXDH_REPLY packet handlers in package_cb.c in libssh before 0.6.5 do not properly validate state,…

Description

The (1) SSH_MSG_NEWKEYS and (2) SSH_MSG_KEXDH_REPLY packet handlers in package_cb.c in libssh before 0.6.5 do not properly validate state, which allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via a crafted SSH packet.

Scores

EPSS (exploitation in 30 days)

4.0% · top 9.5% of all CVEs (4 Nov 2026)

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.

Weakness

• n/a

Affected products

• n/a

  • affected n/a

References (7)

• USN-2912-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
• FEDORA-2015-10962 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
• https://www.libssh.org/security/advisories/CVE-2015-3146.txt (opens in a new tab)x_refsource_CONFIRMx_transferred
• FEDORA-2015-7590 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
• https://www.libssh.org/2015/04/30/libssh-0-6-5-security-and-bugfix-release/ (opens in a new tab)x_refsource_CONFIRMx_transferred
• DSA-3488 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
• https://git.libssh.org/projects/libssh.git/commit/?h=libssh-0.6.5&id=94f6955fbaee6fda9385a23e505497efe21f5b4f (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)

Badge for a README or a ticket

[![CVE-2015-3146](https://trackcve.app/badge/CVE-2015-3146.svg)](https://trackcve.app/cve/CVE-2015-3146)

Record last updated 6 Aug 2024, 05:39 UTC.