Published: 31/08/2015 Updated: 05/02/2024

CVSS v2 Base Score: 7.2 | Impact Score: 10 | Exploitability Score: 3.9

VMScore: 725

Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C

arch/x86/entry/entry_64.S in the Linux kernel prior to 4.1.6 on the x86_64 platform improperly relies on espfix64 during nested NMI processing, which allows local users to gain privileges by triggering an NMI within a certain instruction window.

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Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation or denial of service CVE-2015-3290 Andy Lutomirski discovered that the Linux kernel does not properly handle nested NMIs A local, unprivileged user could use this flaw for privilege escalation CVE-2015-3291 Andy Lutomirski di ...

Several security issues were fixed in the kernel ...

A flaw was found in the way the Linux kernel's nested NMI handler and espfix64 functionalities interacted during NMI processing A local, unprivileged user could use this flaw to crash the system or, potentially, escalate their privileges on the system ...

/* > +++++ CVE-2015-3290 +++++ > > High impact NMI bug on x86_64 systems 313 and newer, embargoed Also fixed by: > > gitkernelorg/cgit/linux/kernel/git/torvalds/linuxgit/commit/?id=9b6e6a8334d56354853f9c255d1395c2ba570e0a > > The other fix (synchronous modify_ldt) does *not* fix CVE-2015-3290 > > You can mi ...

Privilege escalation can occur in Linux due to nested NMIs interrupting espfix64 ...

CWE-264 http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.1.6 http://www.openwall.com/lists/oss-security/2015/08/04/8 https://github.com/torvalds/linux/commit/9b6e6a8334d56354853f9c255d1395c2ba570e0a http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9b6e6a8334d56354853f9c255d1395c2ba570e0a https://bugzilla.redhat.com/show_bug.cgi?id=1243465 http://www.openwall.com/lists/oss-security/2015/07/22/7 http://www.securityfocus.com/bid/76004 http://www.ubuntu.com/usn/USN-2691-1 http://www.ubuntu.com/usn/USN-2690-1 http://www.ubuntu.com/usn/USN-2689-1 http://www.ubuntu.com/usn/USN-2688-1 http://www.ubuntu.com/usn/USN-2687-1 http://www.debian.org/security/2015/dsa-3313 http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00011.html https://www.exploit-db.com/exploits/37722/https://nvd.nist.gov https://www.debian.org/security/./dsa-3313 https://usn.ubuntu.com/2687-1/https://www.exploit-db.com/exploits/37722/https://access.redhat.com/security/cve/cve-2015-3290

CVE-2015-3290

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