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Vulnerability Details : CVE-2009-4537

drivers/net/r8169.c in the r8169 driver in the Linux kernel 2.6.32.3 and earlier does not properly check the size of an Ethernet frame that exceeds the MTU, which allows remote attackers to (1) cause a denial of service (temporary network outage) via a packet with a crafted size, in conjunction with certain packets containing A characters and certain packets containing E characters; or (2) cause a denial of service (system crash) via a packet with a crafted size, in conjunction with certain packets containing '\0' characters, related to the value of the status register and erroneous behavior associated with the RxMaxSize register. NOTE: this vulnerability exists because of an incorrect fix for CVE-2009-1389.
Publish Date : 2010-01-12 Last Update Date : 2018-11-16
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- CVSS Scores & Vulnerability Types

CVSS Score
7.8
Confidentiality Impact None (There is no impact to the confidentiality of the system.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact Complete (There is a total shutdown of the affected resource. The attacker can render the resource completely unavailable.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Denial Of Service
CWE ID 20

- Additional Vendor Supplied Data

Vendor Impact CVSS Score CVSS Vector Report Date Publish Date
Redhat important
7.1
AV:N/AC:M/Au:N/C:N/I:N/A:C 2009-12-28 2009-12-28
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- Related OVAL Definitions

Title Definition Id Class Family
CVE-2009-4537 oval:org.opensuse.security:def:20094537 unix
DEPRECATED: ELSA-2010-0019 -- kernel security update (important) oval:org.mitre.oval:def:28255 unix
drivers/net/r8169.c in the r8169 driver in the Linux kernel 2.6.32.3 and earlier does not properly check the size of an ... oval:org.mitre.oval:def:9439 unix
DSA-2053-1 linux-2.6 -- privilege escalation/denial of service/information leak oval:org.mitre.oval:def:13587 unix
ELSA-2010:0019: kernel security update (Important) oval:org.mitre.oval:def:22036 unix
Linux Kernel RTL8169 NIC 'RxMaxSize' Frame Size Remote Denial of Service Vulnerability oval:org.mitre.oval:def:7443 unix
RHSA-2010:0019: kernel security update (Important) oval:org.mitre.oval:def:22178 unix
RHSA-2010:0019: kernel security update (Important) oval:com.redhat.rhsa:def:20100019 unix
RHSA-2010:0020: kernel security update (Important) oval:com.redhat.rhsa:def:20100020 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2009-4537

# Product Type Vendor Product Version Update Edition Language
1 OS Debian Debian Linux 5.0 Version Details Vulnerabilities
2 OS Linux Linux Kernel 2.6.32.3 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Debian Debian Linux 1
Linux Linux Kernel 1

- References For CVE-2009-4537

https://rhn.redhat.com/errata/RHSA-2010-0095.html
REDHAT RHSA-2010:0095
https://exchange.xforce.ibmcloud.com/vulnerabilities/55647
XF kernel-r8169-dos(55647)
https://bugzilla.redhat.com/show_bug.cgi?id=550907 CONFIRM
http://www.vupen.com/english/advisories/2010/1857
VUPEN ADV-2010-1857
http://www.securityfocus.com/bid/37521
BID 37521 Linux Kernel RTL8169 NIC 'RxMaxSize' Frame Size Remote Denial of Service Vulnerability Release Date:2010-09-23
http://www.redhat.com/support/errata/RHSA-2010-0041.html
REDHAT RHSA-2010:0041
http://www.redhat.com/support/errata/RHSA-2010-0053.html
REDHAT RHSA-2010:0053
http://www.openwall.com/lists/oss-security/2009/12/28/1
MLIST [oss-security] 20091228 CVE requests - kernel security regressions for CVE-2009-1385/and -1389
http://www.openwall.com/lists/oss-security/2009/12/29/2
MLIST [oss-security] 20091229 Re: CVE requests - kernel security regressions for CVE-2009-1385/and -1389
http://www.openwall.com/lists/oss-security/2009/12/31/1
MLIST [oss-security] 20091231 Re: CVE requests - kernel security regressions for CVE-2009-1385/and -1389
http://www.redhat.com/support/errata/RHSA-2010-0019.html
REDHAT RHSA-2010:0019
http://www.redhat.com/support/errata/RHSA-2010-0020.html
REDHAT RHSA-2010:0020
http://www.redhat.com/support/errata/RHSA-2010-0111.html
REDHAT RHSA-2010:0111
http://securitytracker.com/id?1023419
SECTRACK 1023419
http://marc.info/?t=126202986900002&r=1&w=2 CONFIRM
http://www.debian.org/security/2010/dsa-2053
DEBIAN DSA-2053
http://www.novell.com/linux/security/advisories/2010_23_kernel.html
SUSE SUSE-SA:2010:023
http://twitter.com/dakami/statuses/7104238406
http://blog.c22.cc/2009/12/27/26c3-cat-procsysnetipv4fuckups/
http://marc.info/?l=linux-netdev&m=126202972828626&w=2
MLIST [linux-netdev] 20091228 [PATCH RFC] r8169: straighten out overlength frame detection
http://lists.opensuse.org/opensuse-security-announce/2010-07/msg00006.html
SUSE SUSE-SA:2010:031
http://events.ccc.de/congress/2009/Fahrplan/events/3596.en.html
http://lists.fedoraproject.org/pipermail/package-announce/2010-February/035159.html
FEDORA FEDORA-2010-1787

- Metasploit Modules Related To CVE-2009-4537

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)


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