CVE-2009-4537

Description

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.

Category

7.8
CVSS
Severity: High
CVSS 2.0 •
EPSS 3.72% Top 15%
Vendor Advisory opensuse.org Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory fedoraproject.org Vendor Advisory novell.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory debian.org Vendor Advisory redhat.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://bugzilla.redhat.com/show_bug.cgi?id=550907 issue tracking third party advisory
http://www.securityfocus.com/bid/37521 vdb entry third party advisory
http://lists.opensuse.org/opensuse-security-announce/2010-07/msg00006.html mailing list third party advisory vendor advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9439 vdb entry third party advisory signature
http://www.redhat.com/support/errata/RHSA-2010-0111.html third party advisory vendor advisory
http://blog.c22.cc/2009/12/27/26c3-cat-procsysnetipv4fuckups/ third party advisory
http://securitytracker.com/id?1023419 vdb entry third party advisory
http://www.redhat.com/support/errata/RHSA-2010-0053.html third party advisory vendor advisory
http://marc.info/?l=linux-netdev&m=126202972828626&w=2 third party advisory mailing list
http://www.redhat.com/support/errata/RHSA-2010-0019.html third party advisory vendor advisory
http://secunia.com/advisories/40645 third party advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/55647 vdb entry third party advisory
http://www.openwall.com/lists/oss-security/2009/12/28/1 third party advisory mailing list
http://lists.fedoraproject.org/pipermail/package-announce/2010-February/035159.html mailing list third party advisory vendor advisory
http://www.openwall.com/lists/oss-security/2009/12/29/2 third party advisory mailing list
http://www.novell.com/linux/security/advisories/2010_23_kernel.html third party advisory vendor advisory
http://events.ccc.de/congress/2009/Fahrplan/events/3596.en.html third party advisory
https://rhn.redhat.com/errata/RHSA-2010-0095.html third party advisory vendor advisory
http://secunia.com/advisories/39742 third party advisory
http://www.openwall.com/lists/oss-security/2009/12/31/1 third party advisory mailing list
http://www.redhat.com/support/errata/RHSA-2010-0020.html third party advisory vendor advisory
http://secunia.com/advisories/38031 third party advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7443 vdb entry third party advisory signature
http://secunia.com/advisories/38610 third party advisory
http://www.debian.org/security/2010/dsa-2053 third party advisory vendor advisory
http://twitter.com/dakami/statuses/7104238406 third party advisory
http://marc.info/?t=126202986900002&r=1&w=2 third party advisory mailing list
http://secunia.com/advisories/39830 third party advisory
http://www.redhat.com/support/errata/RHSA-2010-0041.html third party advisory vendor advisory
http://www.vupen.com/english/advisories/2010/1857 vdb entry third party advisory

Frequently Asked Questions

What is the severity of CVE-2009-4537?
CVE-2009-4537 has been scored as a high severity vulnerability.
How to fix CVE-2009-4537?
To fix CVE-2009-4537, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2009-4537 being actively exploited in the wild?
It is possible that CVE-2009-4537 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~4% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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