linux_kernel 拒绝服务漏洞

CVE编号

CVE-2008-3792

利用情况

EXP 已公开

补丁情况

官方补丁

披露时间

2008-09-04

漏洞描述

net/sctp/socket.c in the Stream Control Transmission Protocol (sctp) implementation in the Linux kernel before 2.6.26.4 does not verify that the SCTP-AUTH extension is enabled before proceeding with SCTP-AUTH API functions, which allows attackers to cause a denial of service (NULL pointer dereference and panic) via vectors that result in calls to (1) sctp_setsockopt_auth_chunk, (2) sctp_setsockopt_hmac_ident, (3) sctp_setsockopt_auth_key, (4) sctp_setsockopt_active_key, (5) sctp_setsockopt_del_key, (6) sctp_getsockopt_maxburst, (7) sctp_getsockopt_active_key, (8) sctp_getsockopt_peer_auth_chunks, or (9) sctp_getsockopt_local_auth_chunks.

解决建议

建议您更新当前系统或软件至最新版，完成漏洞的修复。

参考链接
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=5...
http://lists.opensuse.org/opensuse-security-announce/2008-10/msg00010.html
http://lkml.org/lkml/2008/8/23/49
http://marc.info/?l=linux-netdev&m=121928747903176&w=2
http://secunia.com/advisories/31881
http://secunia.com/advisories/32190
http://secunia.com/advisories/32393
http://securityreason.com/securityalert/4210
http://www.debian.org/security/2008/dsa-1636
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.26.4
http://www.openwall.com/lists/oss-security/2008/08/25/1
http://www.openwall.com/lists/oss-security/2008/08/26/6
http://www.openwall.com/lists/oss-security/2008/08/26/8
http://www.openwall.com/lists/oss-security/2008/09/26/6
http://www.redhat.com/support/errata/RHSA-2008-0857.html
http://www.securityfocus.com/archive/1/496256/100/0/threaded
http://www.securityfocus.com/bid/31121
http://www.securitytracker.com/id?1020854
http://www.trapkit.de/advisories/TKADV2008-007.txt
http://www.ubuntu.com/usn/usn-659-1
https://exchange.xforce.ibmcloud.com/vulnerabilities/45189

受影响软件情况

#	类型	厂商	产品	版本	影响面
1
	运行在以下环境
	系统	linux	linux_kernel	2.6.26.3	-
	运行在以下环境
	系统	opensuse_11.0	kernel	*		Up to (excluding) 2.6.25.18-0.2

阿里云评分 5.1

• 攻击路径 远程
• 攻击复杂度 容易
• 权限要求 无需权限
• 影响范围 有限影响
• EXP成熟度 EXP 已公开
• 补丁情况 官方补丁
• 数据保密性 无影响
• 数据完整性 传输被破坏
• 服务器危害 DoS
• 全网数量 N/A

CWE-ID 漏洞类型 NVD-CWE-Other