2.6.20.9 : Security Vulnerabilities (Bypass)

Cpe Name:cpe:/o:linux:linux_kernel:2.6.20.9

CVSS Scores Greater Than: 0 1 2 3 4 5 6 7 8 9

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#	CVE ID	CWE ID	Vulnerability Type(s)	Publish Date	Update Date	Score	Gained Access Level	Access	Complexity	Authentication	Conf.	Integ.	Avail.
1	CVE-2011-4080	264	Bypass	2012-05-24	2012-05-29	4.0	None	Local	High	Not required	Complete	None	None
The sysrq_sysctl_handler function in kernel/sysctl.c in the Linux kernel before 2.6.39 does not require the CAP_SYS_ADMIN capability to modify the dmesg_restrict value, which allows local users to bypass intended access restrictions and read the kernel ring buffer by leveraging root privileges, as demonstrated by a root user in a Linux Containers (aka LXC) environment.
2	CVE-2011-2484	399	DoS Bypass	2011-06-24	2012-03-19	4.9	None	Local	Low	Not required	None	None	Complete
The add_del_listener function in kernel/taskstats.c in the Linux kernel 2.6.39.1 and earlier does not prevent multiple registrations of exit handlers, which allows local users to cause a denial of service (memory and CPU consumption), and bypass the OOM Killer, via a crafted application.
3	CVE-2011-1019	264	Bypass	2013-03-01	2013-03-04	1.9	None	Local	Medium	Not required	None	Partial	None
The dev_load function in net/core/dev.c in the Linux kernel before 2.6.38 allows local users to bypass an intended CAP_SYS_MODULE capability requirement and load arbitrary modules by leveraging the CAP_NET_ADMIN capability.
4	CVE-2010-4346	264	Bypass	2010-12-22	2012-03-19	2.1	None	Local	Low	Not required	None	Partial	None
The install_special_mapping function in mm/mmap.c in the Linux kernel before 2.6.37-rc6 does not make an expected security_file_mmap function call, which allows local users to bypass intended mmap_min_addr restrictions and possibly conduct NULL pointer dereference attacks via a crafted assembly-language application.
5	CVE-2010-4258	264	+Priv Bypass	2010-12-30	2012-03-19	6.2	Admin	Local	High	Not required	Complete	Complete	Complete
The do_exit function in kernel/exit.c in the Linux kernel before 2.6.36.2 does not properly handle a KERNEL_DS get_fs value, which allows local users to bypass intended access_ok restrictions, overwrite arbitrary kernel memory locations, and gain privileges by leveraging a (1) BUG, (2) NULL pointer dereference, or (3) page fault, as demonstrated by vectors involving the clear_child_tid feature and the splice system call.
6	CVE-2010-3850	264	Bypass	2010-12-30	2012-03-19	4.9	None	Local	Low	Not required	None	Complete	None
The ec_dev_ioctl function in net/econet/af_econet.c in the Linux kernel before 2.6.36.2 does not require the CAP_NET_ADMIN capability, which allows local users to bypass intended access restrictions and configure econet addresses via an SIOCSIFADDR ioctl call.
7	CVE-2010-2946	20	Bypass	2010-09-29	2012-03-19	2.1	None	Local	Low	Not required	None	Partial	None
fs/jfs/xattr.c in the Linux kernel before 2.6.35.2 does not properly handle a certain legacy format for storage of extended attributes, which might allow local users by bypass intended xattr namespace restrictions via an "os2." substring at the beginning of a name.
8	CVE-2010-2071	264	Bypass	2010-06-16	2012-03-19	4.6	None	Local	Low	Not required	Partial	Partial	Partial
The btrfs_xattr_set_acl function in fs/btrfs/acl.c in btrfs in the Linux kernel 2.6.34 and earlier does not check file ownership before setting an ACL, which allows local users to bypass file permissions by setting arbitrary ACLs, as demonstrated using setfacl.
9	CVE-2009-3725	264	+Priv Bypass	2009-11-06	2012-03-19	7.2	None	Local	Low	Not required	Complete	Complete	Complete
The connector layer in the Linux kernel before 2.6.31.5 does not require the CAP_SYS_ADMIN capability for certain interaction with the (1) uvesafb, (2) pohmelfs, (3) dst, or (4) dm subsystem, which allows local users to bypass intended access restrictions and gain privileges via calls to functions in these subsystems.
10	CVE-2009-2846	264	Bypass	2009-08-18	2012-03-19	7.8	None	Remote	Low	Not required	Complete	None	None
The eisa_eeprom_read function in the parisc isa-eeprom component (drivers/parisc/eisa_eeprom.c) in the Linux kernel before 2.6.31-rc6 allows local users to access restricted memory via a negative ppos argument, which bypasses a check that assumes that ppos is positive and causes an out-of-bounds read in the readb function.
11	CVE-2009-1895	16	Bypass	2009-07-16	2012-03-19	7.2	None	Local	Low	Not required	Complete	Complete	Complete
The personality subsystem in the Linux kernel before 2.6.31-rc3 has a PER_CLEAR_ON_SETID setting that does not clear the ADDR_COMPAT_LAYOUT and MMAP_PAGE_ZERO flags when executing a setuid or setgid program, which makes it easier for local users to leverage the details of memory usage to (1) conduct NULL pointer dereference attacks, (2) bypass the mmap_min_addr protection mechanism, or (3) defeat address space layout randomization (ASLR).
12	CVE-2009-1630	264	Bypass	2009-05-14	2012-04-12	4.4	None	Local	Medium	Not required	Partial	Partial	Partial
The nfs_permission function in fs/nfs/dir.c in the NFS client implementation in the Linux kernel 2.6.29.3 and earlier, when atomic_open is available, does not check execute (aka EXEC or MAY_EXEC) permission bits, which allows local users to bypass permissions and execute files, as demonstrated by files on an NFSv4 fileserver.
13	CVE-2009-1184	16	Bypass	2009-05-05	2012-03-19	4.4	None	Local	Medium	Not required	Partial	Partial	Partial
The selinux_ip_postroute_iptables_compat function in security/selinux/hooks.c in the SELinux subsystem in the Linux kernel before 2.6.27.22, and 2.6.28.x before 2.6.28.10, when compat_net is enabled, omits calls to avc_has_perm for the (1) node and (2) port, which allows local users to bypass intended restrictions on network traffic. NOTE: this was incorrectly reported as an issue fixed in 2.6.27.21.
14	CVE-2009-0834	264	Bypass	2009-03-06	2012-03-19	3.6	None	Local	Low	Not required	Partial	Partial	None
The audit_syscall_entry function in the Linux kernel 2.6.28.7 and earlier on the x86_64 platform does not properly handle (1) a 32-bit process making a 64-bit syscall or (2) a 64-bit process making a 32-bit syscall, which allows local users to bypass certain syscall audit configurations via crafted syscalls, a related issue to CVE-2009-0342 and CVE-2009-0343.
15	CVE-2008-1294	399	Bypass	2008-05-02	2010-08-21	2.1	None	Local	Low	Not required	None	None	Partial
Linux kernel 2.6.17, and other versions before 2.6.22, does not check when a user attempts to set RLIMIT_CPU to 0 until after the change is made, which allows local users to bypass intended resource limits.
16	CVE-2008-0001		Bypass	2008-01-15	2012-03-19	3.6	None	Local	Low	Not required	None	Partial	Partial
VFS in the Linux kernel before 2.6.22.16, and 2.6.23.x before 2.6.23.14, performs tests of access mode by using the flag variable instead of the acc_mode variable, which might allow local users to bypass intended permissions and remove directories.

Total number of vulnerabilities : 16 Page : 1 (This Page)