The ip6_append_data_mtu function in net/ipv6/ip6_output.c in the IPv6 implementation in the Linux kernel through 3.10.3 does not properly…

Description

The ip6_append_data_mtu function in net/ipv6/ip6_output.c in the IPv6 implementation in the Linux kernel through 3.10.3 does not properly maintain information about whether the IPV6_MTU setsockopt option had been specified, which allows local users to cause a denial of service (BUG and system crash) via a crafted application that uses the UDP_CORK option in a setsockopt system call.

Scores

EPSS (exploitation in 30 days)

0.52% · top 55% of all CVEs (6 Nov 2026)

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.7.

Weakness

• n/a
• CWE-399 (opens in a new tab)All about CWE-399 and its CVEs

Affected products

• n/a

  • affected n/a

References (16)

• USN-1943-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
• [oss-security] 20130723 Re: CVE request: Linux kernel: panic while appending data to a corked IPv6 socket in ip6_append_data_mtu (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
• SUSE-SU-2013:1473 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
• USN-1938-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
• 61412 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
• USN-1944-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
• USN-1945-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
• http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=75a493e60ac4bbe2e977e7129d6d8cbb0dd236be (opens in a new tab)x_refsource_CONFIRMx_transferred
• SUSE-SU-2013:1474 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
• https://bugzilla.redhat.com/show_bug.cgi?id=987633 (opens in a new tab)x_refsource_CONFIRMx_transferred
• USN-1947-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
• 54148 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• USN-1941-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
• USN-1942-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
• https://github.com/torvalds/linux/commit/75a493e60ac4bbe2e977e7129d6d8cbb0dd236be (opens in a new tab)x_refsource_CONFIRMx_transferred
• USN-1946-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_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-2013-4163](https://trackcve.app/badge/CVE-2013-4163.svg)](https://trackcve.app/cve/CVE-2013-4163)

Record last updated 6 Aug 2024, 16:30 UTC.