Bugzilla – Bug 569902
VUL-1: CVE-2010-0003: kernel: infoleak if print-fatal-signals=1
Last modified: 2019-07-10 15:30:55 UTC
Your friendly security team received the following report via oss-security. Please respond ASAP. The issue is public. minor issue Date: Tue, 12 Jan 2010 10:54:58 +0800 From: Eugene Teo <eugene@redhat.com> To: oss-security@lists.openwall.com Subject: [oss-security] CVE request - kernel: infoleak if print-fatal-signals=1 CC: "Steven M. Christey" <coley@linus.mitre.org> Description from the upstream patch: When print-fatal-signals is enabled it's possible to dump any memory reachable by the kernel to the log by simply jumping to that address from user space. Or crash the system if there's some hardware with read side effects. The fatal signals handler will dump 16 bytes at the execution address, which is fully controlled by ring 3. In addition when something jumps to an unmapped address there will be up to 16 additional useless page faults, which might be potentially slow (and at least is not very efficient) Fortunately this option is off by default and only there on i386. But fix it by hecking for kernel addresses and also stopping when there's a page fault. References: http://patchwork.kernel.org/patch/69752/ http://git.kernel.org/linus/b45c6e76bc2c72f6426c14bed64fdcbc9bf37cb0 https://bugzilla.redhat.com/show_bug.cgi?id=554578 Thanks, Eugene -- Eugene Teo / Red Hat Security Response Team
Committed to 11.0, SLE11/11.1, 11.2, and master. Punting to Greg for Moblin.
Checked into MOBLIN_20 and MOBLIN_21 branches, reassigning to security
CVE-2010-0003
Update released for: kernel-debug, kernel-debug-base, kernel-debug-base-debuginfo, kernel-debug-debuginfo, kernel-debug-debugsource, kernel-debug-devel, kernel-debug-devel-debuginfo, kernel-default, kernel-default-base, kernel-default-base-debuginfo, kernel-default-debuginfo, kernel-default-debugsource, kernel-default-devel, kernel-default-devel-debuginfo, kernel-desktop, kernel-desktop-base, kernel-desktop-base-debuginfo, kernel-desktop-debuginfo, kernel-desktop-debugsource, kernel-desktop-devel, kernel-desktop-devel-debuginfo, kernel-pae, kernel-pae-base, kernel-pae-base-debuginfo, kernel-pae-debuginfo, kernel-pae-debugsource, kernel-pae-devel, kernel-pae-devel-debuginfo, kernel-source, kernel-source-vanilla, kernel-syms, kernel-trace, kernel-trace-base, kernel-trace-base-debuginfo, kernel-trace-debuginfo, kernel-trace-debugsource, kernel-trace-devel, kernel-trace-devel-debuginfo, kernel-vanilla, kernel-vanilla-base, kernel-vanilla-base-debuginfo, kernel-vanilla-debuginfo, kernel-vanilla-debugsource, kernel-vanilla-devel, kernel-vanilla-devel-debuginfo, kernel-xen, kernel-xen-base, kernel-xen-base-debuginfo, kernel-xen-debuginfo, kernel-xen-debugsource, kernel-xen-devel, kernel-xen-devel-debuginfo, preload-kmp-default, preload-kmp-desktop Products: openSUSE 11.2 (debug, i586, x86_64)
Update released for: kernel-default, kernel-default-base, kernel-default-debuginfo, kernel-default-debugsource, kernel-default-extra, kernel-source, kernel-source-debuginfo, samsung-atheros-kmp-default Products: SUSE-MOBLIN 2.0 (i386) SUSE-MOBLIN 2.0-DEBUG (i386) SUSE-MOBLIN-SAMSUNG 2.0 (i386)
Update released for: acerhk-kmp-debug, acx-kmp-debug, appleir-kmp-debug, at76_usb-kmp-debug, atl2-kmp-debug, aufs-kmp-debug, dazuko-kmp-debug, drbd-kmp-debug, gspcav-kmp-debug, iscsitarget-kmp-debug, ivtv-kmp-debug, kernel-debug, kernel-default, kernel-docs, kernel-kdump, kernel-pae, kernel-ppc64, kernel-ps3, kernel-source, kernel-syms, kernel-vanilla, kernel-xen, kqemu-kmp-debug, nouveau-kmp-debug, omnibook-kmp-debug, pcc-acpi-kmp-debug, pcfclock-kmp-debug, tpctl-kmp-debug, uvcvideo-kmp-debug, virtualbox-ose-kmp-debug, vmware-kmp-debug, wlan-ng-kmp-debug Products: openSUSE 11.0 (debug, i386, ppc, x86_64)
ok, can close then
Update released for: kernel-debug, kernel-debug-base, kernel-debug-debuginfo, kernel-debug-debugsource, kernel-debug-extra, kernel-default, kernel-default-base, kernel-default-debuginfo, kernel-default-debugsource, kernel-default-extra, kernel-docs, kernel-kdump, kernel-kdump-debuginfo, kernel-kdump-debugsource, kernel-pae, kernel-pae-base, kernel-pae-debuginfo, kernel-pae-debugsource, kernel-pae-extra, kernel-ppc64, kernel-ppc64-base, kernel-ppc64-debuginfo, kernel-ppc64-debugsource, kernel-ppc64-extra, kernel-ps3, kernel-ps3-debuginfo, kernel-ps3-debugsource, kernel-source, kernel-source-debuginfo, kernel-syms, kernel-trace, kernel-trace-base, kernel-trace-debuginfo, kernel-trace-debugsource, kernel-trace-extra, kernel-vanilla, kernel-vanilla-debuginfo, kernel-vanilla-debugsource, kernel-xen, kernel-xen-base, kernel-xen-debuginfo, kernel-xen-debugsource, kernel-xen-extra Products: openSUSE 11.1 (debug, i586, ppc, x86_64)
Update released for: cluster-network-kmp-default, ext4dev-kmp-default, ext4dev-kmp-ppc64, kernel-default, kernel-default-base, kernel-default-debuginfo, kernel-default-debugsource, kernel-default-extra, kernel-kdump, kernel-kdump-debuginfo, kernel-kdump-debugsource, kernel-ppc64, kernel-ppc64-base, kernel-ppc64-debuginfo, kernel-ppc64-debugsource, kernel-ppc64-extra, kernel-source, kernel-source-debuginfo, kernel-syms Products: SLE-DEBUGINFO 11 (ppc64) SLE-HAE 11 (ppc64) SLE-SERVER 11 (ppc64)
We have released a kernel update for SUSE Linux Enterprise 11 that mentions/fixes this bug. The released version is 2.6.27.45-0.1.1.