CVE-2011-1093
The dccp_rcv_state_process function in net/dccp/input.c in the Datagram Congestion Control Protocol (DCCP) implementation in the Linux kernel before 2.6.38 does not properly handle packets for a CLOSED endpoint, which allows remote attackers to cause a…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.48%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
The dccp_rcv_state_process function in net/dccp/input.c in the Datagram Congestion Control Protocol (DCCP) implementation in the Linux kernel before 2.6.38 does not properly handle packets for a CLOSED endpoint, which allows remote attackers to cause a denial of service (NULL pointer dereference and OOPS) by sending a DCCP-Close packet followed by a DCCP-Reset packet.
- CVSS 2.0
- 7.8 HIGHAV:N/AC:L/Au:N/C:N/I:N/A:C
- EPSS
- 3.48% probability · 88th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-476
- Affected
- linux/linux kernel · redhat/enterprise linux aus · redhat/enterprise linux desktop · redhat/enterprise linux eus · redhat/enterprise linux server · redhat/enterprise linux workstation
- Source
- secalert@redhat.com
References
- http://downloads.avaya.com/css/P8/documents/100145416Third Party Advisory
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=720dc34bbbe9493c7bd48b2243058b4e447a929d
- http://openwall.com/lists/oss-security/2011/03/08/19Mailing List, Patch, Third Party Advisory
- http://openwall.com/lists/oss-security/2011/03/08/4Mailing List, Patch, Third Party Advisory
- http://rhn.redhat.com/errata/RHSA-2011-0833.htmlThird Party Advisory
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.38Broken Link
- http://www.securityfocus.com/bid/46793Third Party Advisory, VDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=682954Issue Tracking, Patch, Third Party Advisory
- http://downloads.avaya.com/css/P8/documents/100145416Third Party Advisory
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=720dc34bbbe9493c7bd48b2243058b4e447a929d
- http://openwall.com/lists/oss-security/2011/03/08/19Mailing List, Patch, Third Party Advisory
- http://openwall.com/lists/oss-security/2011/03/08/4Mailing List, Patch, Third Party Advisory
- http://rhn.redhat.com/errata/RHSA-2011-0833.htmlThird Party Advisory
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.38Broken Link
- http://www.securityfocus.com/bid/46793Third Party Advisory, VDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=682954Issue Tracking, Patch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.