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…

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.

Scores

EPSS (exploitation in 30 days)

5.9% · top 6.8% of all CVEs (5 Nov 2026)

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.

Weakness

• n/a
• CWE-20 (opens in a new tab)All about CWE-20 and its CVEs

Affected products

• n/a

  • affected n/a

References (30)

• https://bugzilla.redhat.com/show_bug.cgi?id=550907 (opens in a new tab)x_refsource_CONFIRMx_transferred
• 37521 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
• SUSE-SA:2010:031 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
• oval:org.mitre.oval:def:9439 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
• RHSA-2010:0111 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• http://blog.c22.cc/2009/12/27/26c3-cat-procsysnetipv4fuckups/ (opens in a new tab)x_refsource_MISCx_transferred
• 1023419 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
• RHSA-2010:0053 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• [linux-netdev] 20091228 [PATCH RFC] r8169: straighten out overlength frame detection (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
• RHSA-2010:0019 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• 40645 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• kernel-r8169-dos(55647) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
• [oss-security] 20091228 CVE requests - kernel security regressions for CVE-2009-1385/and -1389 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
• FEDORA-2010-1787 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
• [oss-security] 20091229 Re: CVE requests - kernel security regressions for CVE-2009-1385/and -1389 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
• SUSE-SA:2010:023 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
• http://events.ccc.de/congress/2009/Fahrplan/events/3596.en.html (opens in a new tab)x_refsource_MISCx_transferred
• RHSA-2010:0095 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• 39742 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• [oss-security] 20091231 Re: CVE requests - kernel security regressions for CVE-2009-1385/and -1389 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
• RHSA-2010:0020 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• 38031 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• oval:org.mitre.oval:def:7443 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
• 38610 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• DSA-2053 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
• http://twitter.com/dakami/statuses/7104238406 (opens in a new tab)x_refsource_MISCx_transferred
• http://marc.info/?t=126202986900002&r=1&w=2 (opens in a new tab)x_refsource_CONFIRMx_transferred
• 39830 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• RHSA-2010:0041 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• ADV-2010-1857 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2009-4537](https://trackcve.app/badge/CVE-2009-4537.svg)](https://trackcve.app/cve/CVE-2009-4537)

Record last updated 7 Aug 2024, 07:08 UTC.