Vulnerabilities > CVE-2010-2492 - Classic Buffer Overflow vulnerability in multiple products
Attack vector
LOCAL Attack complexity
LOW Privileges required
LOW Confidentiality impact
HIGH Integrity impact
HIGH Availability impact
HIGH Summary
Buffer overflow in the ecryptfs_uid_hash macro in fs/ecryptfs/messaging.c in the eCryptfs subsystem in the Linux kernel before 2.6.35 might allow local users to gain privileges or cause a denial of service (system crash) via unspecified vectors.
Vulnerable Configurations
Common Weakness Enumeration (CWE)
Common Attack Pattern Enumeration and Classification (CAPEC)
- Buffer Overflow via Environment Variables This attack pattern involves causing a buffer overflow through manipulation of environment variables. Once the attacker finds that they can modify an environment variable, they may try to overflow associated buffers. This attack leverages implicit trust often placed in environment variables.
- Overflow Buffers Buffer Overflow attacks target improper or missing bounds checking on buffer operations, typically triggered by input injected by an attacker. As a consequence, an attacker is able to write past the boundaries of allocated buffer regions in memory, causing a program crash or potentially redirection of execution as per the attackers' choice.
- Client-side Injection-induced Buffer Overflow This type of attack exploits a buffer overflow vulnerability in targeted client software through injection of malicious content from a custom-built hostile service.
- Filter Failure through Buffer Overflow In this attack, the idea is to cause an active filter to fail by causing an oversized transaction. An attacker may try to feed overly long input strings to the program in an attempt to overwhelm the filter (by causing a buffer overflow) and hoping that the filter does not fail securely (i.e. the user input is let into the system unfiltered).
- MIME Conversion An attacker exploits a weakness in the MIME conversion routine to cause a buffer overflow and gain control over the mail server machine. The MIME system is designed to allow various different information formats to be interpreted and sent via e-mail. Attack points exist when data are converted to MIME compatible format and back.
Nessus
NASL family Mandriva Local Security Checks NASL id MANDRIVA_MDVSA-2010-198.NASL description Some vulnerabilities were discovered and corrected in the Linux 2.6 kernel : fs/namei.c in Linux kernel 2.6.18 through 2.6.34 does not always follow NFS automount symlinks, which allows attackers to have an unknown impact, related to LOOKUP_FOLLOW. (CVE-2010-1088) The tc_fill_tclass function in net/sched/sch_api.c in the tc subsystem in the Linux kernel 2.4.x before 2.4.37.6 and 2.6.x before 2.6.31-rc9 does not initialize certain (1) tcm__pad1 and (2) tcm__pad2 structure members, which might allow local users to obtain sensitive information from kernel memory via unspecified vectors. (CVE-2009-3228) The do_pages_move function in mm/migrate.c in the Linux kernel before 2.6.33-rc7 does not validate node values, which allows local users to read arbitrary kernel memory locations, cause a denial of service (OOPS), and possibly have unspecified other impact by specifying a node that is not part of the kernel node set. (CVE-2010-0415) The ATI Rage 128 (aka r128) driver in the Linux kernel before 2.6.31-git11 does not properly verify Concurrent Command Engine (CCE) state initialization, which allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly gain privileges via unspecified ioctl calls. (CVE-2009-3620) The wake_futex_pi function in kernel/futex.c in the Linux kernel before 2.6.33-rc7 does not properly handle certain unlock operations for a Priority Inheritance (PI) futex, which allows local users to cause a denial of service (OOPS) and possibly have unspecified other impact via vectors involving modification of the futex value from user space. (CVE-2010-0622) The kvm_arch_vcpu_ioctl_set_sregs function in the KVM in Linux kernel 2.6 before 2.6.30, when running on x86 systems, does not validate the page table root in a KVM_SET_SREGS call, which allows local users to cause a denial of service (crash or hang) via a crafted cr3 value, which triggers a NULL pointer dereference in the gfn_to_rmap function. (CVE-2009-2287) The handle_dr function in arch/x86/kvm/vmx.c in the KVM subsystem in the Linux kernel before 2.6.31.1 does not properly verify the Current Privilege Level (CPL) before accessing a debug register, which allows guest OS users to cause a denial of service (trap) on the host OS via a crafted application. (CVE-2009-3722) The ext4_decode_error function in fs/ext4/super.c in the ext4 filesystem in the Linux kernel before 2.6.32 allows user-assisted remote attackers to cause a denial of service (NULL pointer dereference), and possibly have unspecified other impact, via a crafted read-only filesystem that lacks a journal. (CVE-2009-4308) 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. (CVE-2009-2846) Multiple buffer overflows in fs/nfsd/nfs4xdr.c in the XDR implementation in the NFS server in the Linux kernel before 2.6.34-rc6 allow remote attackers to cause a denial of service (panic) or possibly execute arbitrary code via a crafted NFSv4 compound WRITE request, related to the read_buf and nfsd4_decode_compound functions. (CVE-2010-2521) mm/shmem.c in the Linux kernel before 2.6.28-rc8, when strict overcommit is enabled and CONFIG_SECURITY is disabled, does not properly handle the export of shmemfs objects by knfsd, which allows attackers to cause a denial of service (NULL pointer dereference and knfsd crash) or possibly have unspecified other impact via unknown vectors. NOTE: this vulnerability exists because of an incomplete fix for CVE-2010-1643. (CVE-2008-7256) The release_one_tty function in drivers/char/tty_io.c in the Linux kernel before 2.6.34-rc4 omits certain required calls to the put_pid function, which has unspecified impact and local attack vectors. (CVE-2010-1162) mm/shmem.c in the Linux kernel before 2.6.28-rc3, when strict overcommit is enabled, does not properly handle the export of shmemfs objects by knfsd, which allows attackers to cause a denial of service (NULL pointer dereference and knfsd crash) or possibly have unspecified other impact via unknown vectors. (CVE-2010-1643) The sctp_process_unk_param function in net/sctp/sm_make_chunk.c in the Linux kernel 2.6.33.3 and earlier, when SCTP is enabled, allows remote attackers to cause a denial of service (system crash) via an SCTPChunkInit packet containing multiple invalid parameters that require a large amount of error data. (CVE-2010-1173) The Transparent Inter-Process Communication (TIPC) functionality in Linux kernel 2.6.16-rc1 through 2.6.33, and possibly other versions, allows local users to cause a denial of service (kernel OOPS) by sending datagrams through AF_TIPC before entering network mode, which triggers a NULL pointer dereference. (CVE-2010-1187) The sctp_process_unk_param function in net/sctp/sm_make_chunk.c in the Linux kernel 2.6.33.3 and earlier, when SCTP is enabled, allows remote attackers to cause a denial of service (system crash) via an SCTPChunkInit packet containing multiple invalid parameters that require a large amount of error data. (CVE-2010-1173) fs/cifs/cifssmb.c in the CIFS implementation in the Linux kernel before 2.6.34-rc4 allows remote attackers to cause a denial of service (panic) via an SMB response packet with an invalid CountHigh value, as demonstrated by a response from an OS/2 server, related to the CIFSSMBWrite and CIFSSMBWrite2 functions. (CVE-2010-2248) Buffer overflow in the ecryptfs_uid_hash macro in fs/ecryptfs/messaging.c in the eCryptfs subsystem in the Linux kernel before 2.6.35 might allow local users to gain privileges or cause a denial of service (system crash) via unspecified vectors. (CVE-2010-2492) The xfs_swapext function in fs/xfs/xfs_dfrag.c in the Linux kernel before 2.6.35 does not properly check the file descriptors passed to the SWAPEXT ioctl, which allows local users to leverage write access and obtain read access by swapping one file into another file. (CVE-2010-2226) The gfs2_dirent_find_space function in fs/gfs2/dir.c in the Linux kernel before 2.6.35 uses an incorrect size value in calculations associated with sentinel directory entries, which allows local users to cause a denial of service (NULL pointer dereference and panic) and possibly have unspecified other impact by renaming a file in a GFS2 filesystem, related to the gfs2_rename function in fs/gfs2/ops_inode.c. (CVE-2010-2798) The do_anonymous_page function in mm/memory.c in the Linux kernel before 2.6.27.52, 2.6.32.x before 2.6.32.19, 2.6.34.x before 2.6.34.4, and 2.6.35.x before 2.6.35.2 does not properly separate the stack and the heap, which allows context-dependent attackers to execute arbitrary code by writing to the bottom page of a shared memory segment, as demonstrated by a memory-exhaustion attack against the X.Org X server. (CVE-2010-2240) The drm_ioctl function in drivers/gpu/drm/drm_drv.c in the Direct Rendering Manager (DRM) subsystem in the Linux kernel before 2.6.27.53, 2.6.32.x before 2.6.32.21, 2.6.34.x before 2.6.34.6, and 2.6.35.x before 2.6.35.4 allows local users to obtain potentially sensitive information from kernel memory by requesting a large memory-allocation amount. (CVE-2010-2803) Integer overflow in net/can/bcm.c in the Controller Area Network (CAN) implementation in the Linux kernel before 2.6.27.53, 2.6.32.x before 2.6.32.21, 2.6.34.x before 2.6.34.6, and 2.6.35.x before 2.6.35.4 allows attackers to execute arbitrary code or cause a denial of service (system crash) via crafted CAN traffic. (CVE-2010-2959) Double free vulnerability in the snd_seq_oss_open function in sound/core/seq/oss/seq_oss_init.c in the Linux kernel before 2.6.36-rc4 might allow local users to cause a denial of service or possibly have unspecified other impact via an unsuccessful attempt to open the /dev/sequencer device. (CVE-2010-3080) A vulnerability in Linux kernel caused by insecure allocation of user space memory when translating system call inputs to 64-bit. A stack pointer underflow can occur when using the compat_alloc_user_space method with an arbitrary length input. (CVE-2010-3081) The IA32 system call emulation functionality in arch/x86/ia32/ia32entry.S in the Linux kernel before 2.6.36-rc4-git2 on the x86_64 platform does not zero extend the %eax register after the 32-bit entry path to ptrace is used, which allows local users to gain privileges by triggering an out-of-bounds access to the system call table using the %rax register. NOTE: this vulnerability exists because of a CVE-2007-4573 regression. (CVE-2010-3301) 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 49795 published 2010-10-08 reporter This script is Copyright (C) 2010-2019 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/49795 title Mandriva Linux Security Advisory : kernel (MDVSA-2010:198) NASL family Mandriva Local Security Checks NASL id MANDRIVA_MDVSA-2010-188.NASL description Some vulnerabilities were discovered and corrected in the Linux 2.6 kernel : fs/namei.c in Linux kernel 2.6.18 through 2.6.34 does not always follow NFS automount symlinks, which allows attackers to have an unknown impact, related to LOOKUP_FOLLOW. (CVE-2010-1088) The tc_fill_tclass function in net/sched/sch_api.c in the tc subsystem in the Linux kernel 2.4.x before 2.4.37.6 and 2.6.x before 2.6.31-rc9 does not initialize certain (1) tcm__pad1 and (2) tcm__pad2 structure members, which might allow local users to obtain sensitive information from kernel memory via unspecified vectors. (CVE-2009-3228) The do_pages_move function in mm/migrate.c in the Linux kernel before 2.6.33-rc7 does not validate node values, which allows local users to read arbitrary kernel memory locations, cause a denial of service (OOPS), and possibly have unspecified other impact by specifying a node that is not part of the kernel node set. (CVE-2010-0415) The ATI Rage 128 (aka r128) driver in the Linux kernel before 2.6.31-git11 does not properly verify Concurrent Command Engine (CCE) state initialization, which allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly gain privileges via unspecified ioctl calls. (CVE-2009-3620) The wake_futex_pi function in kernel/futex.c in the Linux kernel before 2.6.33-rc7 does not properly handle certain unlock operations for a Priority Inheritance (PI) futex, which allows local users to cause a denial of service (OOPS) and possibly have unspecified other impact via vectors involving modification of the futex value from user space. (CVE-2010-0622) The kvm_arch_vcpu_ioctl_set_sregs function in the KVM in Linux kernel 2.6 before 2.6.30, when running on x86 systems, does not validate the page table root in a KVM_SET_SREGS call, which allows local users to cause a denial of service (crash or hang) via a crafted cr3 value, which triggers a NULL pointer dereference in the gfn_to_rmap function. (CVE-2009-2287) The handle_dr function in arch/x86/kvm/vmx.c in the KVM subsystem in the Linux kernel before 2.6.31.1 does not properly verify the Current Privilege Level (CPL) before accessing a debug register, which allows guest OS users to cause a denial of service (trap) on the host OS via a crafted application. (CVE-2009-3722) The ext4_decode_error function in fs/ext4/super.c in the ext4 filesystem in the Linux kernel before 2.6.32 allows user-assisted remote attackers to cause a denial of service (NULL pointer dereference), and possibly have unspecified other impact, via a crafted read-only filesystem that lacks a journal. (CVE-2009-4308) 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. (CVE-2009-2846) Multiple buffer overflows in fs/nfsd/nfs4xdr.c in the XDR implementation in the NFS server in the Linux kernel before 2.6.34-rc6 allow remote attackers to cause a denial of service (panic) or possibly execute arbitrary code via a crafted NFSv4 compound WRITE request, related to the read_buf and nfsd4_decode_compound functions. (CVE-2010-2521) mm/shmem.c in the Linux kernel before 2.6.28-rc8, when strict overcommit is enabled and CONFIG_SECURITY is disabled, does not properly handle the export of shmemfs objects by knfsd, which allows attackers to cause a denial of service (NULL pointer dereference and knfsd crash) or possibly have unspecified other impact via unknown vectors. NOTE: this vulnerability exists because of an incomplete fix for CVE-2010-1643. (CVE-2008-7256) The release_one_tty function in drivers/char/tty_io.c in the Linux kernel before 2.6.34-rc4 omits certain required calls to the put_pid function, which has unspecified impact and local attack vectors. (CVE-2010-1162) mm/shmem.c in the Linux kernel before 2.6.28-rc3, when strict overcommit is enabled, does not properly handle the export of shmemfs objects by knfsd, which allows attackers to cause a denial of service (NULL pointer dereference and knfsd crash) or possibly have unspecified other impact via unknown vectors. (CVE-2010-1643) The sctp_process_unk_param function in net/sctp/sm_make_chunk.c in the Linux kernel 2.6.33.3 and earlier, when SCTP is enabled, allows remote attackers to cause a denial of service (system crash) via an SCTPChunkInit packet containing multiple invalid parameters that require a large amount of error data. (CVE-2010-1173) The Transparent Inter-Process Communication (TIPC) functionality in Linux kernel 2.6.16-rc1 through 2.6.33, and possibly other versions, allows local users to cause a denial of service (kernel OOPS) by sending datagrams through AF_TIPC before entering network mode, which triggers a NULL pointer dereference. (CVE-2010-1187) The sctp_process_unk_param function in net/sctp/sm_make_chunk.c in the Linux kernel 2.6.33.3 and earlier, when SCTP is enabled, allows remote attackers to cause a denial of service (system crash) via an SCTPChunkInit packet containing multiple invalid parameters that require a large amount of error data. (CVE-2010-1173) fs/cifs/cifssmb.c in the CIFS implementation in the Linux kernel before 2.6.34-rc4 allows remote attackers to cause a denial of service (panic) via an SMB response packet with an invalid CountHigh value, as demonstrated by a response from an OS/2 server, related to the CIFSSMBWrite and CIFSSMBWrite2 functions. (CVE-2010-2248) Buffer overflow in the ecryptfs_uid_hash macro in fs/ecryptfs/messaging.c in the eCryptfs subsystem in the Linux kernel before 2.6.35 might allow local users to gain privileges or cause a denial of service (system crash) via unspecified vectors. (CVE-2010-2492) The xfs_swapext function in fs/xfs/xfs_dfrag.c in the Linux kernel before 2.6.35 does not properly check the file descriptors passed to the SWAPEXT ioctl, which allows local users to leverage write access and obtain read access by swapping one file into another file. (CVE-2010-2226) The gfs2_dirent_find_space function in fs/gfs2/dir.c in the Linux kernel before 2.6.35 uses an incorrect size value in calculations associated with sentinel directory entries, which allows local users to cause a denial of service (NULL pointer dereference and panic) and possibly have unspecified other impact by renaming a file in a GFS2 filesystem, related to the gfs2_rename function in fs/gfs2/ops_inode.c. (CVE-2010-2798) The do_anonymous_page function in mm/memory.c in the Linux kernel before 2.6.27.52, 2.6.32.x before 2.6.32.19, 2.6.34.x before 2.6.34.4, and 2.6.35.x before 2.6.35.2 does not properly separate the stack and the heap, which allows context-dependent attackers to execute arbitrary code by writing to the bottom page of a shared memory segment, as demonstrated by a memory-exhaustion attack against the X.Org X server. (CVE-2010-2240) The drm_ioctl function in drivers/gpu/drm/drm_drv.c in the Direct Rendering Manager (DRM) subsystem in the Linux kernel before 2.6.27.53, 2.6.32.x before 2.6.32.21, 2.6.34.x before 2.6.34.6, and 2.6.35.x before 2.6.35.4 allows local users to obtain potentially sensitive information from kernel memory by requesting a large memory-allocation amount. (CVE-2010-2803) Integer overflow in net/can/bcm.c in the Controller Area Network (CAN) implementation in the Linux kernel before 2.6.27.53, 2.6.32.x before 2.6.32.21, 2.6.34.x before 2.6.34.6, and 2.6.35.x before 2.6.35.4 allows attackers to execute arbitrary code or cause a denial of service (system crash) via crafted CAN traffic. (CVE-2010-2959) Double free vulnerability in the snd_seq_oss_open function in sound/core/seq/oss/seq_oss_init.c in the Linux kernel before 2.6.36-rc4 might allow local users to cause a denial of service or possibly have unspecified other impact via an unsuccessful attempt to open the /dev/sequencer device. (CVE-2010-3080) A vulnerability in Linux kernel caused by insecure allocation of user space memory when translating system call inputs to 64-bit. A stack pointer underflow can occur when using the compat_alloc_user_space method with an arbitrary length input. (CVE-2010-3081) The IA32 system call emulation functionality in arch/x86/ia32/ia32entry.S in the Linux kernel before 2.6.36-rc4-git2 on the x86_64 platform does not zero extend the %eax register after the 32-bit entry path to ptrace is used, which allows local users to gain privileges by triggering an out-of-bounds access to the system call table using the %rax register. NOTE: this vulnerability exists because of a CVE-2007-4573 regression. (CVE-2010-3301) 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 49666 published 2010-09-24 reporter This script is Copyright (C) 2010-2019 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/49666 title Mandriva Linux Security Advisory : kernel (MDVSA-2010:188) NASL family Red Hat Local Security Checks NASL id REDHAT-RHSA-2011-0007.NASL description Updated kernel packages that fix multiple security issues and several bugs are now available for Red Hat Enterprise Linux 6. 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. * Buffer overflow in eCryptfs. When /dev/ecryptfs has world-writable permissions (which it does not, by default, on Red Hat Enterprise Linux 6), a local, unprivileged user could use this flaw to cause a denial of service or possibly escalate their privileges. (CVE-2010-2492, Important) * Integer overflow in the RDS protocol implementation could allow a local, unprivileged user to cause a denial of service or escalate their privileges. (CVE-2010-3865, Important) * Missing boundary checks in the PPP over L2TP sockets implementation could allow a local, unprivileged user to cause a denial of service or escalate their privileges. (CVE-2010-4160, Important) * NULL pointer dereference in the igb driver. If both Single Root I/O Virtualization (SR-IOV) and promiscuous mode were enabled on an interface using igb, it could result in a denial of service when a tagged VLAN packet is received on that interface. (CVE-2010-4263, Important) * Missing initialization flaw in the XFS file system implementation, and in the network traffic policing implementation, could allow a local, unprivileged user to cause an information leak. (CVE-2010-3078, CVE-2010-3477, Moderate) * NULL pointer dereference in the Open Sound System compatible sequencer driver could allow a local, unprivileged user with access to /dev/sequencer to cause a denial of service. /dev/sequencer is only accessible to root and users in the audio group by default. (CVE-2010-3080, Moderate) * Flaw in the ethtool IOCTL handler could allow a local user to cause an information leak. (CVE-2010-3861, Moderate) * Flaw in bcm_connect() in the Controller Area Network (CAN) Broadcast Manager. On 64-bit systems, writing the socket address may overflow the procname character array. (CVE-2010-3874, Moderate) * Flaw in the module for monitoring the sockets of INET transport protocols could allow a local, unprivileged user to cause a denial of service. (CVE-2010-3880, Moderate) * Missing boundary checks in the block layer implementation could allow a local, unprivileged user to cause a denial of service. (CVE-2010-4162, CVE-2010-4163, CVE-2010-4668, Moderate) * NULL pointer dereference in the Bluetooth HCI UART driver could allow a local, unprivileged user to cause a denial of service. (CVE-2010-4242, Moderate) * Flaw in the Linux kernel CPU time clocks implementation for the POSIX clock interface could allow a local, unprivileged user to cause a denial of service. (CVE-2010-4248, Moderate) * Flaw in the garbage collector for AF_UNIX sockets could allow a local, unprivileged user to trigger a denial of service. (CVE-2010-4249, Moderate) * Missing upper bound integer check in the AIO implementation could allow a local, unprivileged user to cause an information leak. (CVE-2010-3067, Low) * Missing initialization flaws could lead to information leaks. (CVE-2010-3298, CVE-2010-3876, CVE-2010-4072, CVE-2010-4073, CVE-2010-4074, CVE-2010-4075, CVE-2010-4077, CVE-2010-4079, CVE-2010-4080, CVE-2010-4081, CVE-2010-4082, CVE-2010-4083, CVE-2010-4158, Low) * Missing initialization flaw in KVM could allow a privileged host user with access to /dev/kvm to cause an information leak. (CVE-2010-4525, Low) Red Hat would like to thank Andre Osterhues for reporting CVE-2010-2492; Thomas Pollet for reporting CVE-2010-3865; Dan Rosenberg for reporting CVE-2010-4160, CVE-2010-3078, CVE-2010-3874, CVE-2010-4162, CVE-2010-4163, CVE-2010-3298, CVE-2010-4073, CVE-2010-4074, CVE-2010-4075, CVE-2010-4077, CVE-2010-4079, CVE-2010-4080, CVE-2010-4081, CVE-2010-4082, CVE-2010-4083, and CVE-2010-4158; Kosuke Tatsukawa for reporting CVE-2010-4263; Tavis Ormandy for reporting CVE-2010-3080 and CVE-2010-3067; Kees Cook for reporting CVE-2010-3861 and CVE-2010-4072; Nelson Elhage for reporting CVE-2010-3880; Alan Cox for reporting CVE-2010-4242; Vegard Nossum for reporting CVE-2010-4249; Vasiliy Kulikov for reporting CVE-2010-3876; and Stephan Mueller of atsec information security for reporting CVE-2010-4525. last seen 2020-06-01 modified 2020-06-02 plugin id 51500 published 2011-01-12 reporter This script is Copyright (C) 2011-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/51500 title RHEL 6 : kernel (RHSA-2011:0007) NASL family Oracle Linux Local Security Checks NASL id ORACLELINUX_ELSA-2010-0723.NASL description From Red Hat Security Advisory 2010:0723 : Updated kernel packages that fix multiple security issues and several bugs are now available for Red Hat Enterprise Linux 5. 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. The kernel packages contain the Linux kernel, the core of any Linux operating system. This update fixes the following security issues : * A buffer overflow flaw was found in the ecryptfs_uid_hash() function in the Linux kernel eCryptfs implementation. On systems that have the eCryptfs netlink transport (Red Hat Enterprise Linux 5 does) or where the last seen 2020-06-01 modified 2020-06-02 plugin id 68106 published 2013-07-12 reporter This script is Copyright (C) 2013-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/68106 title Oracle Linux 5 : kernel (ELSA-2010-0723) NASL family Ubuntu Local Security Checks NASL id UBUNTU_USN-966-1.NASL description Junjiro R. Okajima discovered that knfsd did not correctly handle strict overcommit. A local attacker could exploit this to crash knfsd, leading to a denial of service. (Only Ubuntu 6.06 LTS and 8.04 LTS were affected.) (CVE-2008-7256, CVE-2010-1643) Chris Guo, Jukka Taimisto, and Olli Jarva discovered that SCTP did not correctly handle invalid parameters. A remote attacker could send specially crafted traffic that could crash the system, leading to a denial of service. (CVE-2010-1173) Mario Mikocevic discovered that GFS2 did not correctly handle certain quota structures. A local attacker could exploit this to crash the system, leading to a denial of service. (Ubuntu 6.06 LTS was not affected.) (CVE-2010-1436) Toshiyuki Okajima discovered that the kernel keyring did not correctly handle dead keyrings. A local attacker could exploit this to crash the system, leading to a denial of service. (CVE-2010-1437) Brad Spengler discovered that Sparc did not correctly implement non-executable stacks. This made userspace applications vulnerable to exploits that would have been otherwise blocked due to non-executable memory protections. (Ubuntu 10.04 LTS was not affected.) (CVE-2010-1451) Dan Rosenberg discovered that the btrfs clone function did not correctly validate permissions. A local attacker could exploit this to read sensitive information, leading to a loss of privacy. (Only Ubuntu 9.10 was affected.) (CVE-2010-1636) Dan Rosenberg discovered that GFS2 set_flags function did not correctly validate permissions. A local attacker could exploit this to gain access to files, leading to a loss of privacy and potential privilege escalation. (Ubuntu 6.06 LTS was not affected.) (CVE-2010-1641) Shi Weihua discovered that btrfs xattr_set_acl function did not correctly validate permissions. A local attacker could exploit this to gain access to files, leading to a loss of privacy and potential privilege escalation. (Only Ubuntu 9.10 and 10.04 LTS were affected.) (CVE-2010-2071) Andre Osterhues discovered that eCryptfs did not correctly calculate hash values. A local attacker with certain uids could exploit this to crash the system or potentially gain root privileges. (Ubuntu 6.06 LTS was not affected.) (CVE-2010-2492). Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-01 modified 2020-06-02 plugin id 48253 published 2010-08-05 reporter Ubuntu Security Notice (C) 2010-2019 Canonical, Inc. / NASL script (C) 2010-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/48253 title Ubuntu 6.06 LTS / 8.04 LTS / 9.04 / 9.10 / 10.04 LTS : linux, linux-{source-2.6.15,ec2,mvl-dove,ti-omap} vulnerabilities (USN-966-1) NASL family Red Hat Local Security Checks NASL id REDHAT-RHSA-2010-0723.NASL description Updated kernel packages that fix multiple security issues and several bugs are now available for Red Hat Enterprise Linux 5. 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. The kernel packages contain the Linux kernel, the core of any Linux operating system. This update fixes the following security issues : * A buffer overflow flaw was found in the ecryptfs_uid_hash() function in the Linux kernel eCryptfs implementation. On systems that have the eCryptfs netlink transport (Red Hat Enterprise Linux 5 does) or where the last seen 2020-06-01 modified 2020-06-02 plugin id 49746 published 2010-10-06 reporter This script is Copyright (C) 2010-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/49746 title RHEL 5 : kernel (RHSA-2010:0723) NASL family VMware ESX Local Security Checks NASL id VMWARE_VMSA-2011-0012.NASL description a. ESX third-party update for Service Console kernel This update takes the console OS kernel package to kernel-2.6.18-238.9.1 which resolves multiple security issues. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the names CVE-2010-1083, CVE-2010-2492, CVE-2010-2798, CVE-2010-2938, CVE-2010-2942, CVE-2010-2943, CVE-2010-3015, CVE-2010-3066, CVE-2010-3067, CVE-2010-3078, CVE-2010-3086, CVE-2010-3296, CVE-2010-3432, CVE-2010-3442, CVE-2010-3477, CVE-2010-3699, CVE-2010-3858, CVE-2010-3859, CVE-2010-3865, CVE-2010-3876, CVE-2010-3877, CVE-2010-3880, CVE-2010-3904, CVE-2010-4072, CVE-2010-4073, CVE-2010-4075, CVE-2010-4080, CVE-2010-4081, CVE-2010-4083, CVE-2010-4157, CVE-2010-4158, CVE-2010-4161, CVE-2010-4238, CVE-2010-4242, CVE-2010-4243, CVE-2010-4247, CVE-2010-4248, CVE-2010-4249, CVE-2010-4251, CVE-2010-4255, CVE-2010-4263, CVE-2010-4343, CVE-2010-4346, CVE-2010-4526, CVE-2010-4655, CVE-2011-0521, CVE-2011-0710, CVE-2011-1010, CVE-2011-1090 and CVE-2011-1478 to these issues. b. ESX third-party update for Service Console krb5 RPMs This patch updates the krb5-libs and krb5-workstation RPMs of the console OS to version 1.6.1-55.el5_6.1, which resolves multiple security issues. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the names CVE-2010-1323, CVE-2011-0281, and CVE-2011-0282 to these issues. c. ESXi and ESX update to third-party component glibc The glibc third-party library is updated to resolve multiple security issues. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the names CVE-2010-0296, CVE-2011-0536, CVE-2011-1071, CVE-2011-1095, CVE-2011-1658, and CVE-2011-1659 to these issues. d. ESX update to third-party drivers mptsas, mpt2sas, and mptspi The mptsas, mpt2sas, and mptspi drivers are updated which addresses multiple security issues in the mpt2sas driver. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the names CVE-2011-1494 and CVE-2011-1495 to these issues. last seen 2020-06-01 modified 2020-06-02 plugin id 56508 published 2011-10-14 reporter This script is Copyright (C) 2011-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/56508 title VMSA-2011-0012 : VMware ESXi and ESX updates to third-party libraries and ESX Service Console NASL family Mandriva Local Security Checks NASL id MANDRIVA_MDVSA-2010-172.NASL description Some vulnerabilities were discovered and corrected in the Linux 2.6 kernel : Buffer overflow in the ecryptfs_uid_hash macro in fs/ecryptfs/messaging.c in the eCryptfs subsystem in the Linux kernel before 2.6.35 might allow local users to gain privileges or cause a denial of service (system crash) via unspecified vectors. (CVE-2010-2492) The DNS resolution functionality in the CIFS implementation in the Linux kernel before 2.6.35, when CONFIG_CIFS_DFS_UPCALL is enabled, relies on a user last seen 2020-06-01 modified 2020-06-02 plugin id 49190 published 2010-09-12 reporter This script is Copyright (C) 2010-2019 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/49190 title Mandriva Linux Security Advisory : kernel (MDVSA-2010:172) NASL family Misc. NASL id VMWARE_VMSA-2011-0012_REMOTE.NASL description The remote VMware ESX / ESXi host is missing a security-related patch. It is, therefore, affected by multiple vulnerabilities in several third-party components and libraries : - Kernel - krb5 - glibc - mtp2sas - mptsas - mptspi last seen 2020-06-01 modified 2020-06-02 plugin id 89680 published 2016-03-04 reporter This script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/89680 title VMware ESX / ESXi Third-Party Libraries Multiple Vulnerabilities (VMSA-2011-0012) (remote check) NASL family CentOS Local Security Checks NASL id CENTOS_RHSA-2010-0723.NASL description Updated kernel packages that fix multiple security issues and several bugs are now available for Red Hat Enterprise Linux 5. 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. The kernel packages contain the Linux kernel, the core of any Linux operating system. This update fixes the following security issues : * A buffer overflow flaw was found in the ecryptfs_uid_hash() function in the Linux kernel eCryptfs implementation. On systems that have the eCryptfs netlink transport (Red Hat Enterprise Linux 5 does) or where the last seen 2020-06-01 modified 2020-06-02 plugin id 67080 published 2013-06-29 reporter This script is Copyright (C) 2013-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/67080 title CentOS 5 : kernel (CESA-2010:0723) NASL family Debian Local Security Checks NASL id DEBIAN_DSA-2110.NASL description Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leak. The Common Vulnerabilities and Exposures project identifies the following problems : - CVE-2010-2492 Andre Osterhues reported an issue in the eCryptfs subsystem. A buffer overflow condition may allow local users to cause a denial of service or gain elevated privileges. - CVE-2010-2954 Tavis Ormandy reported an issue in the irda subsystem which may allow local users to cause a denial of service via a NULL pointer dereference. - CVE-2010-3078 Dan Rosenberg discovered an issue in the XFS file system that allows local users to read potentially sensitive kernel memory. - CVE-2010-3080 Tavis Ormandy reported an issue in the ALSA sequencer OSS emulation layer. Local users with sufficient privileges to open /dev/sequencer (by default on Debian, this is members of the last seen 2020-06-01 modified 2020-06-02 plugin id 49276 published 2010-09-20 reporter This script is Copyright (C) 2010-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/49276 title Debian DSA-2110-1 : linux-2.6 - privilege escalation/denial of service/information leak NASL family SuSE Local Security Checks NASL id SUSE_11_2_KERNEL-100921.NASL description This openSUSE 11.2 kernel was updated to 2.6.31.14, fixing several security issues and bugs. A lot of ext4 filesystem stability fixes were also added. Following security issues have been fixed: CVE-2010-3301: Mismatch between 32bit and 64bit register usage in the system call entry path could be used by local attackers to gain root privileges. This problem only affects x86_64 kernels. CVE-2010-3081: Incorrect buffer handling in the biarch-compat buffer handling could be used by local attackers to gain root privileges. This problem affects foremost x86_64, or potentially other biarch platforms, like PowerPC and S390x. CVE-2010-3084: A buffer overflow in the ETHTOOL_GRXCLSRLALL code could be used to crash the kernel or potentially execute code. CVE-2010-2955: A kernel information leak via the WEXT ioctl was fixed. CVE-2010-2960: The keyctl_session_to_parent function in security/keys/keyctl.c in the Linux kernel expects that a certain parent session keyring exists, which allowed local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via a KEYCTL_SESSION_TO_PARENT argument to the keyctl function. CVE-2010-3080: A double free in an alsa error path was fixed, which could lead to kernel crashes. CVE-2010-3079: Fixed a ftrace NULL pointer dereference problem which could lead to kernel crashes. CVE-2010-3298: Fixed a kernel information leak in the net/usb/hso driver. CVE-2010-3296: Fixed a kernel information leak in the cxgb3 driver. CVE-2010-3297: Fixed a kernel information leak in the net/eql driver. CVE-2010-3078: Fixed a kernel information leak in the xfs filesystem. CVE-2010-2942: Fixed a kernel information leak in the net scheduler code. CVE-2010-2954: The irda_bind function in net/irda/af_irda.c in the Linux kernel did not properly handle failure of the irda_open_tsap function, which allowed local users to cause a denial of service (NULL pointer dereference and panic) and possibly have unspecified other impact via multiple unsuccessful calls to bind on an AF_IRDA (aka PF_IRDA) socket. CVE-2010-2226: The xfs_swapext function in fs/xfs/xfs_dfrag.c in the Linux kernel did not properly check the file descriptors passed to the SWAPEXT ioctl, which allowed local users to leverage write access and obtain read access by swapping one file into another file. CVE-2010-2946: The last seen 2020-06-01 modified 2020-06-02 plugin id 49671 published 2010-09-24 reporter This script is Copyright (C) 2010-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/49671 title openSUSE Security Update : kernel (openSUSE-SU-2010:0664-1) NASL family Oracle Linux Local Security Checks NASL id ORACLELINUX_ELSA-2011-0007.NASL description From Red Hat Security Advisory 2011:0007 : Updated kernel packages that fix multiple security issues and several bugs are now available for Red Hat Enterprise Linux 6. 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. * Buffer overflow in eCryptfs. When /dev/ecryptfs has world-writable permissions (which it does not, by default, on Red Hat Enterprise Linux 6), a local, unprivileged user could use this flaw to cause a denial of service or possibly escalate their privileges. (CVE-2010-2492, Important) * Integer overflow in the RDS protocol implementation could allow a local, unprivileged user to cause a denial of service or escalate their privileges. (CVE-2010-3865, Important) * Missing boundary checks in the PPP over L2TP sockets implementation could allow a local, unprivileged user to cause a denial of service or escalate their privileges. (CVE-2010-4160, Important) * NULL pointer dereference in the igb driver. If both Single Root I/O Virtualization (SR-IOV) and promiscuous mode were enabled on an interface using igb, it could result in a denial of service when a tagged VLAN packet is received on that interface. (CVE-2010-4263, Important) * Missing initialization flaw in the XFS file system implementation, and in the network traffic policing implementation, could allow a local, unprivileged user to cause an information leak. (CVE-2010-3078, CVE-2010-3477, Moderate) * NULL pointer dereference in the Open Sound System compatible sequencer driver could allow a local, unprivileged user with access to /dev/sequencer to cause a denial of service. /dev/sequencer is only accessible to root and users in the audio group by default. (CVE-2010-3080, Moderate) * Flaw in the ethtool IOCTL handler could allow a local user to cause an information leak. (CVE-2010-3861, Moderate) * Flaw in bcm_connect() in the Controller Area Network (CAN) Broadcast Manager. On 64-bit systems, writing the socket address may overflow the procname character array. (CVE-2010-3874, Moderate) * Flaw in the module for monitoring the sockets of INET transport protocols could allow a local, unprivileged user to cause a denial of service. (CVE-2010-3880, Moderate) * Missing boundary checks in the block layer implementation could allow a local, unprivileged user to cause a denial of service. (CVE-2010-4162, CVE-2010-4163, CVE-2010-4668, Moderate) * NULL pointer dereference in the Bluetooth HCI UART driver could allow a local, unprivileged user to cause a denial of service. (CVE-2010-4242, Moderate) * Flaw in the Linux kernel CPU time clocks implementation for the POSIX clock interface could allow a local, unprivileged user to cause a denial of service. (CVE-2010-4248, Moderate) * Flaw in the garbage collector for AF_UNIX sockets could allow a local, unprivileged user to trigger a denial of service. (CVE-2010-4249, Moderate) * Missing upper bound integer check in the AIO implementation could allow a local, unprivileged user to cause an information leak. (CVE-2010-3067, Low) * Missing initialization flaws could lead to information leaks. (CVE-2010-3298, CVE-2010-3876, CVE-2010-4072, CVE-2010-4073, CVE-2010-4074, CVE-2010-4075, CVE-2010-4077, CVE-2010-4079, CVE-2010-4080, CVE-2010-4081, CVE-2010-4082, CVE-2010-4083, CVE-2010-4158, Low) * Missing initialization flaw in KVM could allow a privileged host user with access to /dev/kvm to cause an information leak. (CVE-2010-4525, Low) Red Hat would like to thank Andre Osterhues for reporting CVE-2010-2492; Thomas Pollet for reporting CVE-2010-3865; Dan Rosenberg for reporting CVE-2010-4160, CVE-2010-3078, CVE-2010-3874, CVE-2010-4162, CVE-2010-4163, CVE-2010-3298, CVE-2010-4073, CVE-2010-4074, CVE-2010-4075, CVE-2010-4077, CVE-2010-4079, CVE-2010-4080, CVE-2010-4081, CVE-2010-4082, CVE-2010-4083, and CVE-2010-4158; Kosuke Tatsukawa for reporting CVE-2010-4263; Tavis Ormandy for reporting CVE-2010-3080 and CVE-2010-3067; Kees Cook for reporting CVE-2010-3861 and CVE-2010-4072; Nelson Elhage for reporting CVE-2010-3880; Alan Cox for reporting CVE-2010-4242; Vegard Nossum for reporting CVE-2010-4249; Vasiliy Kulikov for reporting CVE-2010-3876; and Stephan Mueller of atsec information security for reporting CVE-2010-4525. last seen 2020-06-01 modified 2020-06-02 plugin id 68177 published 2013-07-12 reporter This script is Copyright (C) 2013-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/68177 title Oracle Linux 6 : kernel (ELSA-2011-0007)
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| description | BUGTRAQ ID: 42237 CVE ID: CVE-2010-2492 Linux Kernel是开放源码操作系统Linux所使用的内核。 Linux Kernel eCryptfs子系统中fs/ecryptfs/messaging.c文件的ecryptfs_uid_hash宏错误的假设hash_long()函数的第二个参数是哈希桶的数目而不是哈希位的数目，这允许本地用户导致缓冲区溢出。 Linux kernel 2.6.x 厂商补丁： Linux ----- 目前厂商已经发布了升级补丁以修复这个安全问题，请到厂商的主页下载： http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=a6f80fb7b5986fda663d94079d3bba0937a6b6ff |
| id | SSV:20118 |
| last seen | 2017-11-19 |
| modified | 2010-09-14 |
| published | 2010-09-14 |
| reporter | Root |
| title | Linux kernel 2.6.x ecryptfs_uid_hash()函数本地溢出漏洞 |
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=a6f80fb7b5986fda663d94079d3bba0937a6b6ff
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=a6f80fb7b5986fda663d94079d3bba0937a6b6ff
- http://secunia.com/advisories/42890
- http://secunia.com/advisories/42890
- http://secunia.com/advisories/46397
- http://secunia.com/advisories/46397
- http://support.avaya.com/css/P8/documents/100113326
- http://support.avaya.com/css/P8/documents/100113326
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.35
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.35
- http://www.mandriva.com/security/advisories?name=MDVSA-2010:172
- http://www.mandriva.com/security/advisories?name=MDVSA-2010:172
- http://www.mandriva.com/security/advisories?name=MDVSA-2010:198
- http://www.mandriva.com/security/advisories?name=MDVSA-2010:198
- http://www.redhat.com/support/errata/RHSA-2010-0723.html
- http://www.redhat.com/support/errata/RHSA-2010-0723.html
- http://www.redhat.com/support/errata/RHSA-2011-0007.html
- http://www.redhat.com/support/errata/RHSA-2011-0007.html
- http://www.securityfocus.com/archive/1/520102/100/0/threaded
- http://www.securityfocus.com/archive/1/520102/100/0/threaded
- http://www.vmware.com/security/advisories/VMSA-2011-0012.html
- http://www.vmware.com/security/advisories/VMSA-2011-0012.html
- https://bugzilla.redhat.com/show_bug.cgi?id=611385
- https://bugzilla.redhat.com/show_bug.cgi?id=611385