Vulnerabilities > CVE-2006-5173
Attack vector
UNKNOWN Attack complexity
UNKNOWN Privileges required
UNKNOWN Confidentiality impact
UNKNOWN Integrity impact
UNKNOWN Availability impact
UNKNOWN Summary
Linux kernel does not properly save or restore EFLAGS during a context switch, or reset the flags when creating new threads, which allows local users to cause a denial of service (process crash), as demonstrated using a process that sets the Alignment Check flag (EFLAGS 0x40000), which triggers a SIGBUS in other processes that have an unaligned access.
Vulnerable Configurations
Nessus
NASL family SuSE Local Security Checks NASL id SUSE_KERNEL-BIGSMP-2399.NASL description This kernel update fixes the following security problems : - A bug within the UDF filesystem that caused machine hangs when truncating files on the filesystem was fixed. [#186226]. (CVE-2006-4145) - A potential crash when receiving IPX packets was fixed. This problem is thought not to be exploitable. [#197809] - A problem in DVB packet handling could be used to crash the machine when receiving DVB net packages is active. [#201429]. (CVE-2006-4623) - A struct file leak was fixed in the perfmon(2) system call on the Itanium architecture. [#202269]. (CVE-2006-3741) - A malformed ELF image can be used on the Itanium architecture to trigger a kernel crash (denial of service) when a local attacker can supply it to be started. [#203822]. (CVE-2006-4538) - A problem in the ATM protocol handling clip_mkip function could be used by remote attackers to potentially crash the machine. [#205383]. (CVE-2006-4997) CVE-2006-5757/ - A problem in the grow_buffers function could be used to crash or hang the machine using a corrupted filesystem. This affects filesystem types ISO9660 and NTFS. [#205384]. (CVE-2006-6060) - On the i386 architecture the ELFAGS content was not correctly saved, which could be used by local attackers to crash other programs using the AC and NT flag or to escalate privileges by waiting for iopl privileges to be leaked. [#209386]. (CVE-2006-5173) - On the S/390 architecture copy_from_user() could be used by local attackers to read kernel memory. [#209880]. (CVE-2006-5174) - A problem in IPv6 flowlabel handling can be used by local attackers to hang the machine. [#216590]. (CVE-2006-5619) - On the PowerPC architecture a syscall has been wired without the proper futex implementation that can be exploited by a local attacker to hang the machine. [#217295]. (CVE-2006-5648) - On the PowerPC architecture the proper futex implementation was missing a fix for alignment check which could be used by a local attacker to crash the machine. [#217295]. (CVE-2006-5649) - A problem in cramfs could be used to crash the machine during mounting a crafted cramfs image. This requires an attacker to supply such a crafted image and have a user mount it. [#218237]. (CVE-2006-5823) - A problem in the ext3 filesystem could be used by attackers able to supply a crafted ext3 image to cause a denial of service or further data corruption if a user mounts this image. [#220288]. (CVE-2006-6053) - Missing return code checking in the HFS could be used to crash machine when a user complicit attacker is able to supply a specially crafted HFS image. [#221230]. (CVE-2006-6056) - Multiple unspecified vulnerabilities in netfilter for IPv6 code allow remote attackers to bypass intended restrictions via fragmentation attack vectors, aka (1) last seen 2020-06-01 modified 2020-06-02 plugin id 29490 published 2007-12-13 reporter This script is Copyright (C) 2007-2019 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/29490 title SuSE 10 Security Update : Linux kernel (ZYPP Patch Number 2399) NASL family SuSE Local Security Checks NASL id SUSE_KERNEL-2397.NASL description This kernel update fixes the following security problems : - CVE-2006-4145: A bug within the UDF filesystem that caused machine hangs when truncating files on the filesystem was fixed. [#186226] - A potential crash when receiving IPX packets was fixed. This problem is thought not to be exploitable. [#197809] - CVE-2006-4623: A problem in DVB packet handling could be used to crash the machine when receiving DVB net packages is active. [#201429] - CVE-2006-3741: A struct file leak was fixed in the perfmon(2) system call on the Itanium architecture. [#202269] - CVE-2006-4538: A malformed ELF image can be used on the Itanium architecture to trigger a kernel crash (denial of service) when a local attacker can supply it to be started. [#203822] - CVE-2006-4997: A problem in the ATM protocol handling clip_mkip function could be used by remote attackers to potentially crash the machine. [#205383] CVE-2006-5757/ - CVE-2006-6060: A problem in the grow_buffers function could be used to crash or hang the machine using a corrupted filesystem. This affects filesystem types ISO9660 and NTFS. [#205384] - CVE-2006-5173: On the i386 architecture the ELFAGS content was not correctly saved, which could be used by local attackers to crash other programs using the AC and NT flag or to escalate privileges by waiting for iopl privileges to be leaked. [#209386] - CVE-2006-5174: On the S/390 architecture copy_from_user() could be used by local attackers to read kernel memory. [#209880] - CVE-2006-5619: A problem in IPv6 flowlabel handling can be used by local attackers to hang the machine. [#216590] - CVE-2006-5648: On the PowerPC architecture a syscall has been wired without the proper futex implementation that can be exploited by a local attacker to hang the machine. [#217295] - CVE-2006-5649: On the PowerPC architecture the proper futex implementation was missing a fix for alignment check which could be used by a local attacker to crash the machine. [#217295] - CVE-2006-5823: A problem in cramfs could be used to crash the machine during mounting a crafted cramfs image. This requires an attacker to supply such a crafted image and have a user mount it. [#218237] - CVE-2006-6053: A problem in the ext3 filesystem could be used by attackers able to supply a crafted ext3 image to cause a denial of service or further data corruption if a user mounts this image. [#220288] - CVE-2006-6056: Missing return code checking in the HFS could be used to crash machine when a user complicit attacker is able to supply a specially crafted HFS image. [#221230] - CVE-2006-4572: Multiple unspecified vulnerabilities in netfilter for IPv6 code allow remote attackers to bypass intended restrictions via fragmentation attack vectors, aka (1) last seen 2020-06-01 modified 2020-06-02 plugin id 27291 published 2007-10-17 reporter This script is Copyright (C) 2007-2019 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/27291 title openSUSE 10 Security Update : kernel (kernel-2397) NASL family SuSE Local Security Checks NASL id SUSE_KERNEL-DEBUG-2393.NASL description This kernel update fixes the following security problems : - A bug within the UDF filesystem that caused machine hangs when truncating files on the filesystem was fixed. [#186226]. (CVE-2006-4145) - A potential crash when receiving IPX packets was fixed. This problem is thought not to be exploitable. [#197809] - A problem in DVB packet handling could be used to crash the machine when receiving DVB net packages is active. [#201429]. (CVE-2006-4623) - A struct file leak was fixed in the perfmon(2) system call on the Itanium architecture. [#202269]. (CVE-2006-3741) - A malformed ELF image can be used on the Itanium architecture to trigger a kernel crash (denial of service) when a local attacker can supply it to be started. [#203822]. (CVE-2006-4538) - A problem in the ATM protocol handling clip_mkip function could be used by remote attackers to potentially crash the machine. [#205383]. (CVE-2006-4997) CVE-2006-5757/ - A problem in the grow_buffers function could be used to crash or hang the machine using a corrupted filesystem. This affects filesystem types ISO9660 and NTFS. [#205384]. (CVE-2006-6060) - On the i386 architecture the ELFAGS content was not correctly saved, which could be used by local attackers to crash other programs using the AC and NT flag or to escalate privileges by waiting for iopl privileges to be leaked. [#209386]. (CVE-2006-5173) - On the S/390 architecture copy_from_user() could be used by local attackers to read kernel memory. [#209880]. (CVE-2006-5174) - A problem in IPv6 flowlabel handling can be used by local attackers to hang the machine. [#216590]. (CVE-2006-5619) - On the PowerPC architecture a syscall has been wired without the proper futex implementation that can be exploited by a local attacker to hang the machine. [#217295]. (CVE-2006-5648) - On the PowerPC architecture the proper futex implementation was missing a fix for alignment check which could be used by a local attacker to crash the machine. [#217295]. (CVE-2006-5649) - A problem in cramfs could be used to crash the machine during mounting a crafted cramfs image. This requires an attacker to supply such a crafted image and have a user mount it. [#218237]. (CVE-2006-5823) - A problem in the ext3 filesystem could be used by attackers able to supply a crafted ext3 image to cause a denial of service or further data corruption if a user mounts this image. [#220288]. (CVE-2006-6053) - Missing return code checking in the HFS could be used to crash machine when a user complicit attacker is able to supply a specially crafted HFS image. [#221230]. (CVE-2006-6056) - Multiple unspecified vulnerabilities in netfilter for IPv6 code allow remote attackers to bypass intended restrictions via fragmentation attack vectors, aka (1) last seen 2020-06-01 modified 2020-06-02 plugin id 59162 published 2012-05-17 reporter This script is Copyright (C) 2012-2019 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/59162 title SuSE 10 Security Update : Linux kernel (ZYPP Patch Number 2393) NASL family Ubuntu Local Security Checks NASL id UBUNTU_USN-395-1.NASL description Mark Dowd discovered that the netfilter iptables module did not correcly handle fragmented packets. By sending specially crafted packets, a remote attacker could exploit this to bypass firewall rules. This has only be fixed for Ubuntu 6.10; the corresponding fix for Ubuntu 5.10 and 6.06 will follow soon. (CVE-2006-4572) Dmitriy Monakhov discovered an information leak in the __block_prepare_write() function. During error recovery, this function did not properly clear memory buffers which could allow local users to read portions of unlinked files. This only affects Ubuntu 5.10. (CVE-2006-4813) ADLab Venustech Info Ltd discovered that the ATM network driver referenced an already released pointer in some circumstances. By sending specially crafted packets to a host over ATM, a remote attacker could exploit this to crash that host. This does not affect Ubuntu 6.10. (CVE-2006-4997) Matthias Andree discovered that the NFS locking management daemon (lockd) did not correctly handle mixing of last seen 2020-06-01 modified 2020-06-02 plugin id 27981 published 2007-11-10 reporter Ubuntu Security Notice (C) 2006-2019 Canonical, Inc. / NASL script (C) 2007-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/27981 title Ubuntu 5.10 / 6.06 LTS / 6.10 : linux-source-2.6.12/-2.6.15/-2.6.17 vulnerabilities (USN-395-1) NASL family Mandriva Local Security Checks NASL id MANDRAKE_MDKSA-2007-002.NASL description Some vulnerabilities were discovered and corrected in the Linux 2.6 kernel : The Linux kernel does not properly save or restore EFLAGS during a context switch, or reset the flags when creating new threads, which could allow a local user to cause a Denial of Service (process crash) (CVE-2006-5173). The seqfile handling in the 2.6 kernel up to 2.6.18 allows local users to cause a DoS (hang or oops) via unspecified manipulations that trigger an infinite loop while searching for flowlabels (CVE-2006-5619). An integer overflow in the 2.6 kernel prior to 2.6.18.4 could allow a local user to execute arbitrary code via a large maxnum value in an ioctl request (CVE-2006-5751). A race condition in the ISO9660 filesystem handling could allow a local user to cause a DoS (infinite loop) by mounting a crafted ISO9660 filesystem containing malformed data structures (CVE-2006-5757). A vulnerability in the bluetooth support could allow for overwriting internal CMTP and CAPI data structures via malformed packets (CVE-2006-6106). The provided packages are patched to fix these vulnerabilities. All users are encouraged to upgrade to these updated kernels immediately and reboot to effect the fixes. In addition to these security fixes, other fixes have been included such as : - added the marvell IDE driver - use a specific driver Jmicron chipsets rather than using a generic one - updated the sky2 driver to fix some network hang issues To update your kernel, please follow the directions located at : http://www.mandriva.com/en/security/kernelupdate last seen 2020-06-01 modified 2020-06-02 plugin id 24619 published 2007-02-18 reporter This script is Copyright (C) 2007-2019 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/24619 title Mandrake Linux Security Advisory : kernel (MDKSA-2007:002)
Statements
| contributor | Joshua Bressers |
| lastmodified | 2006-11-03 |
| organization | Red Hat |
| statement | Not Vulnerable. This flaw only affects kernel versions 2.6.14 to 2.6.18. Red Hat Enterprise Linux 2.1, 3, and 4 does not ship with a vulnerable kernel version. |
References
- http://www.ubuntu.com/usn/usn-395-1
- http://secunia.com/advisories/23361
- http://secunia.com/advisories/23384
- http://www.novell.com/linux/security/advisories/2006_79_kernel.html
- http://www.mandriva.com/security/advisories?name=MDKSA-2007:002
- http://secunia.com/advisories/23593
- http://www.securityfocus.com/archive/1/471457
- http://secunia.com/advisories/25691
- http://secunia.com/advisories/23474
- http://www.securityfocus.com/bid/21851
- http://kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=47a5c6fa0e204a2b63309c648bb2fde36836c826