| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-Id: <20120516.153913.686915759183202821.davem@davemloft.net> Date: Wed, 16 May 2012 15:39:13 -0400 (EDT) From: David Miller <davem@...emloft.net> To: kadlec@...ckhole.kfki.hu Cc: pablo@...filter.org, netfilter-devel@...r.kernel.org, netdev@...r.kernel.org Subject: Re: [PATCH 0/4] netfilter fixes for 3.4-rc7 From: Jozsef Kadlecsik <kadlec@...ckhole.kfki.hu> Date: Wed, 16 May 2012 21:34:55 +0200 (CEST) > On Wed, 16 May 2012, David Miller wrote: > >> > Could at least the patch with the subject >> > >> > netfilter: ipset: fix hash size checking in kernel >> > >> > The hash size must fit both into u32 (jhash) and the max value of >> > size_t. The missing checking could lead to kernel crash, bug reported >> > by Seblu. >> > >> > be submitted into 3.4-rc7? Any non most-recent ipset package compiled with >> > gcc-4.7 or above can trigger the bug. >> >> And only root can trigger it if he gives bogus parameters right? > > Yes, root can trigger it only, however it's a two sided bug: ipset < 6.12 > compiled with gcc >= 4.7 is broken and sends bogus data to the kernel, > even when normal input parameters are supplied. And unpatched kernel can > crash when acting on the bogus data. :-( Ok, that's a more convincing argument. I've applied the hash size validation patch to 'net'. -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Powered by blists - more mailing lists