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Red Hat alert RHSA-2011:1253-01 (kernel-rt)

Subject:  [RHSA-2011:1253-01] Important: kernel-rt security and bug fix update
Date:  Mon, 12 Sep 2011 19:51:58 +0000
Message-ID:  <>
Archive-link:  Article, Thread

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Important: kernel-rt security and bug fix update Advisory ID: RHSA-2011:1253-01 Product: Red Hat Enterprise MRG for RHEL-6 Advisory URL: Issue date: 2011-09-12 CVE Names: CVE-2010-4243 CVE-2010-4526 CVE-2011-1020 CVE-2011-1021 CVE-2011-1090 CVE-2011-1160 CVE-2011-1478 CVE-2011-1479 CVE-2011-1494 CVE-2011-1495 CVE-2011-1576 CVE-2011-1577 CVE-2011-1585 CVE-2011-1593 CVE-2011-1598 CVE-2011-1745 CVE-2011-1746 CVE-2011-1748 CVE-2011-1767 CVE-2011-1768 CVE-2011-1770 CVE-2011-1776 CVE-2011-2022 CVE-2011-2183 CVE-2011-2213 CVE-2011-2484 CVE-2011-2491 CVE-2011-2492 CVE-2011-2495 CVE-2011-2496 CVE-2011-2497 CVE-2011-2517 CVE-2011-2695 ===================================================================== 1. Summary: Updated kernel-rt packages that fix multiple security issues and various bugs are now available for Red Hat Enterprise MRG 2.0. The Red Hat Security Response Team has rated this update as having important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section. 2. Relevant releases/architectures: MRG Realtime for RHEL 6 Server v.2 - noarch, x86_64 3. Description: Security fixes: * A flaw in the SCTP and DCCP implementations could allow a remote attacker to cause a denial of service. (CVE-2010-4526, CVE-2011-1770, Important) * Flaws in the Management Module Support for Message Passing Technology (MPT) based controllers could allow a local, unprivileged user to cause a denial of service, an information leak, or escalate their privileges. (CVE-2011-1494, CVE-2011-1495, Important) * Flaws in the AGPGART driver, and a flaw in agp_allocate_memory(), could allow a local user to cause a denial of service or escalate their privileges. (CVE-2011-1745, CVE-2011-2022, CVE-2011-1746, Important) * A flaw in the client-side NLM implementation could allow a local, unprivileged user to cause a denial of service. (CVE-2011-2491, Important) * A flaw in the Bluetooth implementation could allow a remote attacker to cause a denial of service or escalate their privileges. (CVE-2011-2497, Important) * Flaws in the netlink-based wireless configuration interface could allow a local user, who has the CAP_NET_ADMIN capability, to cause a denial of service or escalate their privileges on systems that have an active wireless interface. (CVE-2011-2517, Important) * The maximum file offset handling for ext4 file systems could allow a local, unprivileged user to cause a denial of service. (CVE-2011-2695, Important) * A local, unprivileged user could allocate large amounts of memory not visible to the OOM killer, causing a denial of service. (CVE-2010-4243, Moderate) * The proc file system could allow a local, unprivileged user to obtain sensitive information or possibly cause integrity issues. (CVE-2011-1020, Moderate) * A local, privileged user could possibly write arbitrary kernel memory via /sys/kernel/debug/acpi/custom_method. (CVE-2011-1021, Moderate) * Inconsistency in the methods for allocating and freeing NFSv4 ACL data; CVE-2010-4250 fix caused a regression; a flaw in next_pidmap() and inet_diag_bc_audit(); flaws in the CAN implementation; a race condition in the memory merging support; a flaw in the taskstats subsystem; and the way mapping expansions were handled could allow a local, unprivileged user to cause a denial of service. (CVE-2011-1090, CVE-2011-1479, CVE-2011-1593, CVE-2011-2213, CVE-2011-1598, CVE-2011-1748, CVE-2011-2183, CVE-2011-2484, CVE-2011-2496, Moderate) * A flaw in GRO could result in a denial of service when a malformed VLAN frame is received. (CVE-2011-1478, Moderate) * napi_reuse_skb() could be called on VLAN packets allowing an attacker on the local network to possibly trigger a denial of service. (CVE-2011-1576, Moderate) * A denial of service could occur if packets were received while the ipip or ip_gre module was being loaded. (CVE-2011-1767, CVE-2011-1768, Moderate) * Information leaks. (CVE-2011-1160, CVE-2011-2492, CVE-2011-2495, Low) * Flaws in the EFI GUID Partition Table implementation could allow a local attacker to cause a denial of service. (CVE-2011-1577, CVE-2011-1776, Low) * While a user has a CIFS share mounted that required successful authentication, a local, unprivileged user could mount that share without knowing the correct password if mount.cifs was setuid root. (CVE-2011-1585, Low) Red Hat would like to thank Dan Rosenberg for reporting CVE-2011-1770, CVE-2011-1494, CVE-2011-1495, CVE-2011-2497, and CVE-2011-2213; Vasiliy Kulikov of Openwall for reporting CVE-2011-1745, CVE-2011-2022, CVE-2011-1746, CVE-2011-2484, and CVE-2011-2495; Vasily Averin for reporting CVE-2011-2491; Brad Spengler for reporting CVE-2010-4243; Kees Cook for reporting CVE-2011-1020; Robert Swiecki for reporting CVE-2011-1593 and CVE-2011-2496; Oliver Hartkopp for reporting CVE-2011-1748; Andrea Righi for reporting CVE-2011-2183; Ryan Sweat for reporting CVE-2011-1478 and CVE-2011-1576; Peter Huewe for reporting CVE-2011-1160; Marek Kroemeke and Filip Palian for reporting CVE-2011-2492; and Timo Warns for reporting CVE-2011-1577 and CVE-2011-1776. 4. Solution: This update also fixes various bugs. Documentation for these bug fixes will be available shortly from the Technical Notes document linked to in the References section. Users should upgrade to these updated packages, which correct these issues, and fix the bugs noted in the Technical Notes. The system must be rebooted for this update to take effect. Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at To install kernel packages manually, use "rpm -ivh [package]". Do not use "rpm -Uvh" as that will remove the running kernel binaries from your system. You may use "rpm -e" to remove old kernels after determining that the new kernel functions properly on your system. 5. Bugs fixed ( 625688 - CVE-2010-4243 kernel: mm: mem allocated invisible to oom_kill() when not attached to any threads 664914 - CVE-2010-4526 kernel: sctp: a race between ICMP protocol unreachable and connect() 680358 - CVE-2011-1020 kernel: no access restrictions of /proc/pid/* after setuid program exec 680841 - CVE-2011-1021 kernel: /sys/kernel/debug/acpi/custom_method can bypass module restrictions 681987 - crash module required for RT kernel 682641 - CVE-2011-1090 kernel: nfs4: Ensure that ACL pages sent over NFS were not allocated from the slab 684671 - CVE-2011-1160 kernel: tpm infoleaks 691270 - CVE-2011-1478 kernel: gro: reset dev and skb_iff on skb reuse 691793 - CVE-2011-1479 kernel: DoS (crash) due slab corruption in inotify_init1 (incomplete fix for CVE-2010-4250) 694021 - CVE-2011-1494 CVE-2011-1495 kernel: drivers/scsi/mpt2sas: prevent heap overflows 695173 - CVE-2011-1576 kernel: net: Fix memory leak/corruption on VLAN GRO_DROP 695976 - CVE-2011-1577 kernel: corrupted GUID partition tables can cause kernel oops 697394 - CVE-2011-1585 kernel: cifs session reuse 697822 - CVE-2011-1593 kernel: proc: signedness issue in next_pidmap() 698057 - CVE-2011-1598 CVE-2011-1748 kernel: missing check in can/bcm and can/raw socket releases 698996 - CVE-2011-1745 CVE-2011-2022 kernel: agp: insufficient pg_start parameter checking in AGPIOC_BIND and AGPIOC_UNBIND ioctls 698998 - CVE-2011-1746 kernel: agp: insufficient page_count parameter checking in agp_allocate_memory() 702303 - CVE-2011-1767 CVE-2011-1768 kernel: netns vs proto registration ordering 703011 - CVE-2011-1770 kernel: dccp: handle invalid feature options length 703019 - CVE-2011-2492 kernel: bluetooth: l2cap and rfcomm: fix 1 byte infoleak to userspace 703026 - CVE-2011-1776 kernel: validate size of EFI GUID partition entries 709393 - CVE-2011-2491 kernel: rpc task leak after flock()ing NFS share 710158 - CONFIG_NF_CT_ACCT is deprecated in kernel-rt- 710338 - CVE-2011-2183 kernel: ksm: race between ksmd and exiting task 714536 - CVE-2011-2213 kernel: inet_diag: insufficient validation 715436 - CVE-2011-2484 kernel: taskstats: duplicate entries in listener mode can lead to DoS 716538 - CVE-2011-2496 kernel: mm: avoid wrapping vm_pgoff in mremap() and stack expansions 716805 - CVE-2011-2497 kernel: bluetooth: buffer overflow in l2cap config request 716825 - CVE-2011-2495 kernel: /proc/PID/io infoleak 718152 - CVE-2011-2517 kernel: nl80211: missing check for valid SSID size in scan operations 722557 - CVE-2011-2695 kernel: ext4: kernel panic when writing data to the last block of sparse file 728310 - MRG/RT is missing cxgb3/t3fw-7.10.0.bin firmware files 728551 - add /sys/kernel/realtime entry 6. Package List: MRG Realtime for RHEL 6 Server v.2: Source: noarch: kernel-rt-doc- kernel-rt-firmware- x86_64: kernel-rt- kernel-rt-debug- kernel-rt-debug-debuginfo- kernel-rt-debug-devel- kernel-rt-debuginfo- kernel-rt-debuginfo-common-x86_64- kernel-rt-devel- kernel-rt-trace- kernel-rt-trace-debuginfo- kernel-rt-trace-devel- kernel-rt-vanilla- kernel-rt-vanilla-debuginfo- kernel-rt-vanilla-devel- These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from 7. References: 8. Contact: The Red Hat security contact is <>. More contact details at Copyright 2011 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.4 (GNU/Linux) iD8DBQFObmKpXlSAg2UNWIIRAu/+AKC5klLY86rE+GjnaB/PpvDxdnA5JQCeMAh8 /3pm1OOL516ZQdr1dp5MUI0= =s43q -----END PGP SIGNATURE----- -- Enterprise-watch-list mailing list

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