high
7.1
CWE
119
Advisory Published
CVE Published
Updated

CVE-2016-4998: Buffer Overflow

First published: Fri Jun 24 2016(Updated: )

An out-of-bounds heap memory access, leading to a Denial of Service or possibly heap disclosure or further impact was found in setsockopt(). The particular setsockopt() call is normally restricted to root, however some processes with cap_sys_admin may also be able to trigger this flaw. Upstream fixes <a href="http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ce683e5f9d04">http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ce683e5f9d04</a> <a href="http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6e94e0cfb088">http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6e94e0cfb088</a> <a href="http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=bdf533de6968">http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=bdf533de6968</a> Discussion on oss-sec: <a href="http://www.openwall.com/lists/oss-security/2016/06/24/5">http://www.openwall.com/lists/oss-security/2016/06/24/5</a>

Credit: secalert@redhat.com secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
Linux Linux kernel<=4.5.5
Oracle Linux=7
Canonical Ubuntu Linux=12.04
Canonical Ubuntu Linux=14.04
Canonical Ubuntu Linux=15.10
Canonical Ubuntu Linux=16.04
debian/linux
5.10.223-1
5.10.226-1
6.1.115-1
6.1.119-1
6.12.5-1
6.12.6-1

Remedy

https://github.com/torvalds/linux/commit/6e94e0cfb0887e4013b3b930fa6ab1fe6bb6ba91

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Reference Links

Frequently Asked Questions

  • What is CVE-2016-4998?

    CVE-2016-4998 is a vulnerability in the Linux kernel that allows local users to cause a denial of service or obtain sensitive information from kernel heap memory.

  • How does CVE-2016-4998 impact the Linux kernel?

    CVE-2016-4998 can result in an out-of-bounds read, leading to a denial of service or potential information disclosure.

  • Which versions of the Linux kernel are affected by CVE-2016-4998?

    CVE-2016-4998 affects Linux kernel versions before 4.6.

  • How can the vulnerability in CVE-2016-4998 be fixed?

    To fix the vulnerability in CVE-2016-4998, update to Linux kernel version 4.6 or later.

  • Where can I find more information about CVE-2016-4998?

    You can find more information about CVE-2016-4998 at the following references: [SecurityTracker](http://www.securitytracker.com/id/1036171), [SecurityFocus](http://www.securityfocus.com/bid/91451), [Debian Security Advisory](http://www.debian.org/security/2016/dsa-3607).

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