Linux kernel fsave and frstor denial of service
| linux-fsave-frstor-dos (16412) |  Low Risk |
Description:
Linux kernel is vulnerable to a denial of service attack. A local attacker could use the fsave and frstor instructions to cause the system to crash.
Consequences:
Denial of Service
Remedy:
Apply the appropriate patch for your system, as listed in Linux Reviews News 2004-06-11. See References.
For Slackware Linux:
Upgrade to the latest kernel package, as listed below. Refer to slackware-security Mailing List, Tue, 15 Jun 2004 10:53:26 -0700 (PDT) for more information. See References.
Slackware Linux 8.1: 2.4.18-i386-6 or later
Slackware Linux 9.0: 2.4.21-i486-4or later
Slackware Linux 9.1: 2.4.26-i486-3 or later
Slackware Linux -current: 2.4.26-i486-4 or later
For SuSE Linux:
Upgrade to the latest kernel package, as listed below. Refer to SuSE Security Announcement SuSE-SuSE-SA:2004:017 for more information. See References.
SuSE Linux 9.0: 2.4.21-226.i586 or later
SuSE Linux 8.2: 2.4.20.SuSE-113.i586 or later
SuSE Linux 8.1: 2.4.21-226.i586 or later
SuSE Linux 8.0: 2.4.18.SuSE-299.i386 or later
For Red Hat Linux:
Upgrade to the latest kernel package, as listed below. Refer to RHSA-2004:255 for more information. See References.
Red Hat Enterprise Linux AS (v. 3), ES (v. 3), WS (v. 3), Desktop: 2.4.21-15.0.2.EL.x86_64 or later
Red Hat Enterprise Linux AS (v. 2.1), ES (v. 2.1),and WS (v. 2.1) : 2.4.9-e.41 or later
For Turbolinux:
Upgrade to the latest kernel package, as listed below. Refer to Turbolinux Security Advisory TLSA-2004-18 for more information. See References.
Turbolinux Appliance Server 1.0 Hosting Edition: 2.4.25-4 or later
Turbolinux Appliance Server 1.0 Workgroup Edition: 2.4.25-4 or later
Turbolinux 10 Desktop: 2.6.0-10.src or later
Turbolinux 8 Server: 2.4.18-20.src or later
Turbolinux 8 Workstation: 2.4.18-20.src or later
Turbolinux 7 Server: 2.4.18-20.src or later
Turbolinux 7 Workstation: 2.4.18-20.src or later
For EnGarde Secure Linux Community Edition and Professional Edition:
Apply the update for this vulnerability, as listed in Guardian Digital Security Advisory ESA-20040621-005. See References.
For Conectiva Linux:
Upgrade to the latest kernel package, as listed below. Refer to Conectiva Linux Security Announcement CLSA-2004:845 for more information. See References.
Conectiva Linux 8: 2.4.19-1U80_22cl or later
Conectiva Linux 9: 2.4.21-31301U90_16cl or later
For Mandrake Linux:
Upgrade to the latest kernel package, as listed below. Refer to MandrakeSoft Security Advisory MDKSA-2004:062 : kernel for more information.See References.
Mandrake Linux 9.1: 2.4.21.0.31mdk-1-1mdk or later
Mandrake Linux 9.2: 2.4.22.35mdk-1-1mdk or later
Mandrake Linux Multi Network Firewall 8.2: 2.4.19.41mdk-1-1mdk or later
Mandrake Linux Corporate Server 2.1: 2.4.19.41mdk-1-1mdk or later
Mandrake Linux 10.0: 2.4.25.6mdk-1-1mdk or later
For Gentoo Linux:
Upgrade to the latest version of kernel, as listed in GLSA 200407-02. See References.
For EnGarde Secure Linux Community Edition and Professional Edition:
Apply the update for this vulnerability, as listed in Guardian Digital Security Advisory ESA-20040621-005. See References.
For Debian GNU/Linux:
Refer to DSA-1070-1, DSA-1069-1, DSA-1067-1, or DSA-1082-1 for patch, upgrade, or suggested workaround information. See References.
For other distributions:
Contact your vendor for upgrade or patch information.
References:
- CIAC Information Bulletin O-164: Red Hat Updated Kernel Packages Fix Security Vulnerabilities.
- Conectiva Linux Security Announcement CLSA-2004:845: Fixes for kernel vulnerabilities.
- Full-Disclosure Mailing List, Mon Jun 14 2004 - 10:19:16 CDT : repost: linux kernel local crash seen on slashdot.
- Guardian Digital Security Advisory ESA-20040621-005: Several vulnerabilities.
- Guardian Digital Security Advisory ESA-20040621-005: kernel-.
- Linux Reviews News 2004-06-11: New Kernel Crash-Exploit discovered.
- Slackware Security Advisories Tue, 15 Jun 2004 10:53:26 -0700 (PDT): [slackware-security] kernel DoS (SSA:2004-167-01).
- BID-10538: Linux Kernel Floating Point Exception Handler Local Denial Of Service Vulnerability
- BID-10566: Linux Kernel Multiple Device Driver Vulnerabilities
- CVE-2004-0554: Linux kernel 2.4.x and 2.6.x for x86 allows local users to cause a denial of service (system crash), possibly via an infinite loop that triggers a signal handler with a certain sequence of fsave and frstor instructions, as originally demonstrated using a crash.c program.
- DSA-1067: kernel-source-2.4.16 -- several vulnerabilities
- DSA-1069: kernel-source-2.4.18 -- several vulnerabilities
- DSA-1070: kernel-source-2.4.19 -- several vulnerabilities
- DSA-1082: kernel-source-2.4.17 -- several vulnerabilities
- GLSA-200407-02: Linux Kernel: Multiple vulnerabilities
- MDKSA-2004:062: Updated kernel packages fix multiple vulnerabilities
- RHSA-2004-255: kernel security update
- RHSA-2004-260: kernel security update
- SUSE-SA:2004:017: Linux Kernel: local denial-of-service attack
Platforms Affected:
- Conectiva Linux 8.0
- Conectiva Linux 9.0
- Debian Debian Linux 3.0
- EngardeLinux Secure Community 2.0
- EngardeLinux Secure Linux
- EngardeLinux Secure Professional 1.5
- EngardeLinux Secure Professional
- Gentoo Linux
- Linux Kernel 2.4.18
- Linux Kernel 2.4.19
- Linux Kernel 2.4.21
- Linux Kernel 2.4.22
- Linux Kernel 2.4.23
- Linux Kernel 2.4.24
- Linux Kernel 2.4.25
- Linux Kernel 2.4.26
- Linux Kernel 2.6.1 rc2
- Linux Kernel 2.6.1 rc1
- Linux Kernel 2.6.1
- Linux Kernel 2.6.2
- Linux Kernel 2.6.3
- Linux Kernel 2.6.4
- Linux Kernel 2.6.5
- Linux Kernel 2.6.6
- Linux Kernel 2.6.6 rc1
- Linux Kernel 2.6.7 rc1
- Linux Kernel 2.6.7
- MandrakeSoft Mandrake Linux 10.0 AMD64
- MandrakeSoft Mandrake Linux 10.0
- MandrakeSoft Mandrake Linux 9.1
- MandrakeSoft Mandrake Linux 9.1 PPC
- MandrakeSoft Mandrake Linux 9.2 AMD64
- MandrakeSoft Mandrake Linux 9.2
- MandrakeSoft Mandrake Linux Corporate Server 2.1 X86_64
- MandrakeSoft Mandrake Linux Corporate Server 2.1
- MandrakeSoft Mandrake Multi Network Firewall 8.2
- Novell SuSE Linux Enterprise Server 7.0
- RedHat Enterprise Linux 2.1 WS
- RedHat Enterprise Linux 2.1 AS
- RedHat Enterprise Linux 2.1 ES
- RedHat Enterprise Linux 3 Desktop
- RedHat Enterprise Linux 3 AS
- RedHat Enterprise Linux 3 ES
- RedHat Enterprise Linux 3 WS
- RedHat Linux 3.0
- Slackware Slackware Linux 8.1
- Slackware Slackware Linux 9.0
- Slackware Slackware Linux 9.1
- Slackware Slackware Linux current
- SUSE SuSE Linux 8.0
- SUSE SuSE Linux 8.1
- SUSE SuSE Linux 8.2
- SUSE SuSE Linux 9.0
- SUSE SuSE Linux 9.1
- SuSE SuSE Linux Connectivity Server
- SuSE SuSE Linux Database Server
- SuSE SuSE Linux Office Server
- Turbolinux Turbolinux 10 Desktop
- Turbolinux Turbolinux 10 F...
- Turbolinux Turbolinux 7 Server
- Turbolinux Turbolinux 7 Workstation
- Turbolinux Turbolinux 8 Server
- Turbolinux Turbolinux 8 Workstation
- Turbolinux Turbolinux Appliance Server 1.0
- Turbolinux Turbolinux Appliance Server 1.0 Hosting Ed
- Turbolinux Turbolinux Appliance Server 1.0 Workgroup Ed
Reported:
Jun 14, 2004
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