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4.6
CVSSv2

CVE-2009-3624

Published: 02/11/2009 Updated: 13/02/2023
CVSS v2 Base Score: 4.6 | Impact Score: 6.4 | Exploitability Score: 3.9
VMScore: 410
Vector: AV:L/AC:L/Au:N/C:P/I:P/A:P
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Vulnerability Summary

The get_instantiation_keyring function in security/keys/keyctl.c in the KEYS subsystem in the Linux kernel prior to 2.6.32-rc5 does not properly maintain the reference count of a keyring, which allows local users to gain privileges or cause a denial of service (OOPS) via vectors involving calls to this function without specifying a keyring by ID, as demonstrated by a series of keyctl request2 and keyctl list commands.

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Vendor Advisories

Ubuntu Security Notice: linux, linux-source-2.6.15 vulnerabilities
It was discovered that the AX25 network subsystem did not correctly check integer signedness in certain setsockopt calls A local attacker could exploit this to crash the system, leading to a denial of service Ubuntu 910 was not affected (CVE-2009-2909) ...

References

CWE-310http://marc.info/?l=oss-security&m=125619420905341&w=2http://secunia.com/advisories/37086http://marc.info/?l=oss-security&m=125624091417161&w=2http://twitter.com/spendergrsec/statuses/4916661870http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.32-rc5http://secunia.com/advisories/38017http://lists.opensuse.org/opensuse-security-announce/2010-01/msg00000.htmlhttp://www.ubuntu.com/usn/usn-864-1http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=21279cfa107af07ef985539ac0de2152b9cba5f5https://nvd.nist.govhttps://usn.ubuntu.com/864-1/
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