CVE-2009-0028

Severity: low (CVSS 2.1 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.7% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2009-02-27 · updated 2026-06-16
Weakness: CWE-264

Description

The clone system call in the Linux kernel 2.6.28 and earlier allows local users to send arbitrary signals to a parent process from an unprivileged child process by launching an additional child process with the CLONE_PARENT flag, and then letting this new process exit.

Affected products

Linux kernel: through 2.6.28; 2.2.27, 2.4.36, 2.4.36.1, 2.4.36.2, 2.4.36.3, 2.4.36.4 (+296)

References

http://lists.opensuse.org/opensuse-security-announce/2009-02/msg00003.html
http://lists.opensuse.org/opensuse-security-announce/2009-06/msg00000.html
http://lists.opensuse.org/opensuse-security-announce/2009-06/msg00001.html
http://osvdb.org/52204
http://rhn.redhat.com/errata/RHSA-2009-0459.html
http://scary.beasts.org/security/CESA-2009-002.html
http://scarybeastsecurity.blogspot.com/2009/02/linux-kernel-minor-signal-vulnerability.html
http://secunia.com/advisories/33758
http://secunia.com/advisories/34033
http://secunia.com/advisories/34680
http://secunia.com/advisories/34917
http://secunia.com/advisories/34962

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