The kill_something_info function in kernel/signal.c in the Linux kernel before 2.6.28 does not consider PID namespaces when processing…

Description

The kill_something_info function in kernel/signal.c in the Linux kernel before 2.6.28 does not consider PID namespaces when processing signals directed to PID -1, which allows local users to bypass the intended namespace isolation, and send arbitrary signals to all processes in all namespaces, via a kill command.

Scores

EPSS (exploitation in 30 days)

0.39% · top 67% of all CVEs (5 Nov 2026)

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.6.

Weakness

• n/a
• CWE-264 (opens in a new tab)All about CWE-264 and its CVEs

Affected products

• n/a

  • affected n/a

References (19)

• http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=d25141a818383b3c3b09f065698c544a7a0ec6e7 (opens in a new tab)x_refsource_CONFIRMx_transferred
• 35656 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.28 (opens in a new tab)x_refsource_CONFIRMx_transferred
• 20090516 rPSA-2009-0084-1 kernel (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
• https://bugzilla.redhat.com/show_bug.cgi?id=496031 (opens in a new tab)x_refsource_CONFIRMx_transferred
• kernel-killsomethinginfo-security-bypass(50386) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
• [oss-security] 20090417 Re: CVE request: kernel: 'kill sig -1' must only apply to caller's PID namespace (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
• 35120 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• USN-793-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
• RHSA-2009:1081 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• 34981 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• DSA-1800 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
• [linux-kernel] 20080723 Re: [PATCH 1/2] signals: kill(-1) should only signal processes in the same namespace (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
• 35343 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• [oss-security] 20090421 Re: CVE request: kernel: 'kill sig -1' must only apply to caller's PID namespace (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
• DSA-1787 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
• http://wiki.rpath.com/Advisories:rPSA-2009-0084 (opens in a new tab)x_refsource_CONFIRMx_transferred
• [oss-security] 20090416 CVE request: kernel: 'kill sig -1' must only apply to caller's PID namespace (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
• 35121 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_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-2009-1338](https://trackcve.app/badge/CVE-2009-1338.svg)](https://trackcve.app/cve/CVE-2009-1338)

Record last updated 7 Aug 2024, 05:13 UTC.