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CVE-2010-4076

Status Candidate

Overview

The rs_ioctl function in drivers/char/amiserial.c in the Linux kernel 2.6.36.1 and earlier does not properly initialize a certain structure member, which allows local users to obtain potentially sensitive information from kernel stack memory via a TIOCGICOUNT ioctl call.

Related Files

Ubuntu Security Notice USN-1218-1
Posted Sep 29, 2011
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1218-1 - Dan Rosenberg discovered that multiple terminal ioctls did not correctly initialize structure memory. A local attacker could exploit this to read portions of kernel stack memory, leading to a loss of privacy. Alex Shi and Eric Dumazet discovered that the network stack did not correctly handle packet backlogs. A remote attacker could exploit this by sending a large amount of network traffic to cause the system to run out of memory, leading to a denial of service. Various other issues were also addressed.

tags | advisory, remote, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2010-4076, CVE-2010-4077, CVE-2010-4251, CVE-2010-4805, CVE-2011-1020, CVE-2011-1493, CVE-2011-1577, CVE-2011-2213, CVE-2011-2484, CVE-2011-2492, CVE-2011-2700, CVE-2011-2723, CVE-2011-2918
SHA-256 | 7ce613f6fb82e60467fe2db0120524df0114dd4f622231bc1bba67151a5b6582
Ubuntu Security Notice USN-1216-1
Posted Sep 27, 2011
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1216-1 - Dan Rosenberg discovered that multiple terminal ioctls did not correctly initialize structure memory. A local attacker could exploit this to read portions of kernel stack memory, leading to a loss of privacy. Alex Shi and Eric Dumazet discovered that the network stack did not correctly handle packet backlogs. A remote attacker could exploit this by sending a large amount of network traffic to cause the system to run out of memory, leading to a denial of service. Various other issues were also addressed.

tags | advisory, remote, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2010-4076, CVE-2010-4077, CVE-2010-4251, CVE-2010-4805, CVE-2011-1020, CVE-2011-1493, CVE-2011-1577, CVE-2011-2213, CVE-2011-2484, CVE-2011-2492, CVE-2011-2700, CVE-2011-2723, CVE-2011-2918
SHA-256 | 632b7c41843d8b08abd09aa566debae12f62d2202a245defc954e205b756668d
Ubuntu Security Notice USN-1208-1
Posted Sep 14, 2011
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1208-1 - Dan Rosenberg discovered that multiple terminal ioctls did not correctly initialize structure memory. A local attacker could exploit this to read portions of kernel stack memory, leading to a loss of privacy. Alex Shi and Eric Dumazet discovered that the network stack did not correctly handle packet backlogs. A remote attacker could exploit this by sending a large amount of network traffic to cause the system to run out of memory, leading to a denial of service. Various other issues were also addressed.

tags | advisory, remote, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2010-4076, CVE-2010-4077, CVE-2010-4251, CVE-2010-4805, CVE-2011-1020, CVE-2011-1493, CVE-2011-1577, CVE-2011-2213, CVE-2011-2484, CVE-2011-2492, CVE-2011-2700, CVE-2011-2723, CVE-2011-2918
SHA-256 | c72d25c5c02bfb1b3dd8b578a0fff242bb575640e763f8cf25379ff8a0fc30ba
Ubuntu Security Notice USN-1204-1
Posted Sep 14, 2011
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1204-1 - Dan Rosenberg discovered that the Linux kernel TIPC implementation contained multiple integer signedness errors. A local attacker could exploit this to gain root privileges. Dan Rosenberg discovered that multiple terminal ioctls did not correctly initialize structure memory. A local attacker could exploit this to read portions of kernel stack memory, leading to a loss of privacy. Various other issues were also addressed.

tags | advisory, kernel, local, root
systems | linux, ubuntu
advisories | CVE-2010-3859, CVE-2010-4075, CVE-2010-4076, CVE-2010-4077, CVE-2010-4158, CVE-2010-4160, CVE-2010-4162, CVE-2010-4163, CVE-2010-4175, CVE-2010-4242, CVE-2010-4243, CVE-2010-4251, CVE-2010-4526, CVE-2010-4649, CVE-2010-4668, CVE-2010-4805, CVE-2011-0726, CVE-2011-1010, CVE-2011-1012, CVE-2011-1013, CVE-2011-1020, CVE-2011-1044, CVE-2011-1078, CVE-2011-1079, CVE-2011-1080, CVE-2011-1082, CVE-2011-1090, CVE-2011-1093
SHA-256 | d65a3d265010dcc757cc58fad050e2727d47806e2609d736043b0ff3e79a9e82
Ubuntu Security Notice USN-1203-1
Posted Sep 14, 2011
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1203-1 - Dan Rosenberg discovered that multiple terminal ioctls did not correctly initialize structure memory. A local attacker could exploit this to read portions of kernel stack memory, leading to a loss of privacy. Alex Shi and Eric Dumazet discovered that the network stack did not correctly handle packet backlogs. A remote attacker could exploit this by sending a large amount of network traffic to cause the system to run out of memory, leading to a denial of service. Various other issues were also addressed.

tags | advisory, remote, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2010-4076, CVE-2010-4077, CVE-2010-4251, CVE-2010-4805, CVE-2011-1020, CVE-2011-1493, CVE-2011-1577, CVE-2011-2213, CVE-2011-2484, CVE-2011-2492, CVE-2011-2700, CVE-2011-2723, CVE-2011-2918
SHA-256 | 286bb941d7141b756b5c455e3e57f8e085d01c33d50b9139d9d2c90312850771
Ubuntu Security Notice USN-1202-1
Posted Sep 14, 2011
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1202-1 - Dan Rosenberg discovered that several network ioctls did not clear kernel memory correctly. A local user could exploit this to read kernel stack memory, leading to a loss of privacy. Brad Spengler discovered that stack memory for new a process was not correctly calculated. A local attacker could exploit this to crash the system, leading to a denial of service. Dan Rosenberg discovered that the Linux kernel TIPC implementation contained multiple integer signedness errors. A local attacker could exploit this to gain root privileges. Various other issues were also addressed.

tags | exploit, denial of service, kernel, local, root
systems | linux, ubuntu
advisories | CVE-2010-4081, CVE-2010-3296, CVE-2010-3297, CVE-2010-3858, CVE-2010-3859, CVE-2010-3874, CVE-2010-3880, CVE-2010-4073, CVE-2010-4075, CVE-2010-4076, CVE-2010-4077, CVE-2010-4080, CVE-2010-4081, CVE-2010-4082, CVE-2010-4083, CVE-2010-4157, CVE-2010-4160, CVE-2010-4162, CVE-2010-4163, CVE-2010-4169, CVE-2010-4175, CVE-2010-4242, CVE-2010-4243, CVE-2010-4248, CVE-2010-4256, CVE-2010-4565, CVE-2010-4649, CVE-2010-4655
SHA-256 | b470551b1de773c77d363adf5b0cb1910cc8654d0405c8a191ad8f00fd5d2535
Ubuntu Security Notice USN-1187-1
Posted Aug 9, 2011
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1187-1 - It was discovered that KVM did not correctly initialize certain CPU registers. A local attacker could exploit this to crash the system, leading to a denial of service. Thomas Pollet discovered that the RDS network protocol did not check certain iovec buffers. A local attacker could exploit this to crash the system or possibly execute arbitrary code as the root user. Vasiliy Kulikov discovered that the Linux kernel X.25 implementation did not correctly clear kernel memory. A local attacker could exploit this to read kernel stack memory, leading to a loss of privacy. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, kernel, local, root, protocol
systems | linux, ubuntu
advisories | CVE-2010-3698, CVE-2010-3865, CVE-2010-3875, CVE-2010-3876, CVE-2010-3877, CVE-2010-3880, CVE-2010-3881, CVE-2010-4075, CVE-2010-4076, CVE-2010-4077, CVE-2010-4079, CVE-2010-4083, CVE-2010-4163, CVE-2010-4248, CVE-2010-4342, CVE-2010-4346, CVE-2010-4527, CVE-2010-4529, CVE-2010-4565, CVE-2010-4649, CVE-2010-4656, CVE-2010-4668, CVE-2011-0463, CVE-2011-0521, CVE-2011-0695, CVE-2011-0711, CVE-2011-0712, CVE-2011-0726
SHA-256 | a19be41338e6dd32d9108d32eb9499a6fb77d0e0338c29273697babba2520b9a
Ubuntu Security Notice USN-1183-1
Posted Aug 3, 2011
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1183-1 - Dan Rosenberg discovered that multiple terminal ioctls did not correctly initialize structure memory. A local attacker could exploit this to read portions of kernel stack memory, leading to a loss of privacy. Neil Horman discovered that NFSv4 did not correctly handle certain orders of operation with ACL data. A remote attacker with access to an NFSv4 mount could exploit this to crash the system, leading to a denial of service. Various other issues were also addressed.

tags | advisory, remote, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2010-4076, CVE-2010-4077, CVE-2011-1090, CVE-2011-1163, CVE-2011-1577, CVE-2011-1598, CVE-2011-1746
SHA-256 | 41132c553abe1fdfc234d54df5758ce32b544f07f7485844769ad28b9d50cd4b
Ubuntu Security Notice USN-1170-1
Posted Jul 16, 2011
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1170-1 - Dan Rosenberg discovered that multiple terminal ioctls did not correctly initialize structure memory. A local attacker could exploit this to read portions of kernel stack memory, leading to a loss of privacy. It was discovered that Xen did not correctly handle certain block requests. A local attacker in a Xen guest could cause the Xen host to use all available CPU resources, leading to a denial of service. Various other issues were also addressed.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2010-4076, CVE-2010-4077, CVE-2010-4247, CVE-2010-4526, CVE-2011-0726, CVE-2011-1163, CVE-2011-1577, CVE-2011-1745, CVE-2011-1746, CVE-2011-1747, CVE-2011-2022
SHA-256 | 1723caad95829c697af2c75e3b2eaa05c86499fc1d4c521bf8bf41368013a4c8
Ubuntu Security Notice USN-1105-1
Posted Apr 6, 2011
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1105-1 - Dan Rosenberg discovered that multiple terminal ioctls did not correctly initialize structure memory. Dan Rosenberg discovered that the socket filters did not correctly initialize structure memory. Dan Rosenberg discovered that certain iovec operations did not calculate page counts correctly. Dan Rosenberg discovered that the SCSI subsystem did not correctly validate iov segments. Dan Rosenberg discovered multiple flaws in the X.25 facilities parsing. Alan Cox discovered that the HCI UART driver did not correctly check if a write operation was available. Nelson Elhage discovered that the kernel did not correctly handle process cleanup after triggering a recoverable kernel bug. Tavis Ormandy discovered that the install_special_mapping function could bypass the mmap_min_addr restriction.

tags | advisory, kernel
systems | linux, ubuntu
advisories | CVE-2010-4075, CVE-2010-4076, CVE-2010-4077, CVE-2010-4158, CVE-2010-4162, CVE-2010-4163, CVE-2010-4164, CVE-2010-4242, CVE-2010-4258, CVE-2010-4346
SHA-256 | 904a543705cc638bbca74057089fec2151fbc499e81f85373bf328d0ed447cb3
Ubuntu Security Notice USN-1092-1
Posted Mar 25, 2011
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1092-1 - Dan Rosenberg discovered that multiple terminal ioctls did not correctly initialize structure memory. A local attacker could exploit this to read portions of kernel stack memory, leading to a loss of privacy. Dan Rosenberg discovered that the socket filters did not correctly initialize structure memory. A local attacker could create malicious filters to read portions of kernel stack memory, leading to a loss of privacy. Dan Rosenberg discovered that certain iovec operations did not calculate page counts correctly. A local attacker could exploit this to crash the system, leading to a denial of service. Dan Rosenberg discovered that the SCSI subsystem did not correctly validate iov segments. A local attacker with access to a SCSI device could send specially crafted requests to crash the system, leading to a denial of service. Alan Cox discovered that the HCI UART driver did not correctly check if a write operation was available. A local attacker could exploit this flaw to gain root privileges.

tags | advisory, denial of service, kernel, local, root
systems | linux, ubuntu
advisories | CVE-2010-4076, CVE-2010-4077, CVE-2010-4158, CVE-2010-4162, CVE-2010-4163, CVE-2010-4242
SHA-256 | e4e95c3ce708ccee60c69142d9b8f3a021508dda6126580ad7d0f318105c5ded
Ubuntu Security Notice USN-1090-1
Posted Mar 18, 2011
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1090-1 - Dan Rosenberg discovered that multiple terminal ioctls did not correctly initialize structure memory. A local attacker could exploit this to read portions of kernel stack memory, leading to a loss of privacy. Dan Rosenberg discovered that the socket filters did not correctly initialize structure memory. A local attacker could create malicious filters to read portions of kernel stack memory, leading to a loss of privacy. Dan Rosenberg discovered that the SCSI subsystem did not correctly validate iov segments. A local attacker with access to a SCSI device could send specially crafted requests to crash the system, leading to a denial of service. Dan Rosenberg discovered that the RDS protocol did not correctly check ioctl arguments. A local attacker could exploit this to crash the system, leading to a denial of service.

tags | advisory, denial of service, kernel, local, protocol
systems | linux, ubuntu
advisories | CVE-2010-4076, CVE-2010-4077, CVE-2010-4158, CVE-2010-4163, CVE-2010-4175
SHA-256 | f12b71de6de5f81790efc389293c19f77d8bf0c68bf39e6e1e07941dfd0dc88c
Ubuntu Security Notice USN-1089-1
Posted Mar 18, 2011
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1089-1 - Dan Rosenberg discovered that multiple terminal ioctls did not correctly initialize structure memory. A local attacker could exploit this to read portions of kernel stack memory, leading to a loss of privacy. Dan Rosenberg discovered that the socket filters did not correctly initialize structure memory. A local attacker could create malicious filters to read portions of kernel stack memory, leading to a loss of privacy. Dan Rosenberg discovered that certain iovec operations did not calculate page counts correctly. A local attacker could exploit this to crash the system, leading to a denial of service. Dan Rosenberg discovered that the SCSI subsystem did not correctly validate iov segments. A local attacker with access to a SCSI device could send specially crafted requests to crash the system, leading to a denial of service. Dan Rosenberg discovered that the RDS protocol did not correctly check ioctl arguments. A local attacker could exploit this to crash the system, leading to a denial of service. Alan Cox discovered that the HCI UART driver did not correctly check if a write operation was available. If the mmap_min-addr sysctl was changed from the Ubuntu default to a value of 0, a local attacker could exploit this flaw to gain root privileges.

tags | advisory, denial of service, kernel, local, root, protocol
systems | linux, ubuntu
advisories | CVE-2010-4076, CVE-2010-4077, CVE-2010-4158, CVE-2010-4162, CVE-2010-4163, CVE-2010-4175, CVE-2010-4242
SHA-256 | 0e7ad54b2d6863235ae50c53fada14dd0585ca6742beb25fbcb08c14797c41da
Ubuntu Security Notice USN-1086-1
Posted Mar 9, 2011
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1086-1 - Dan Rosenberg discovered that multiple terminal ioctls did not correctly initialize structure memory. A local attacker could exploit this to read portions of kernel stack memory, leading to a loss of privacy. Dan Rosenberg discovered that the socket filters did not correctly initialize structure memory. A local attacker could create malicious filters to read portions of kernel stack memory, leading to a loss of privacy. Dan Rosenberg discovered that the SCSI subsystem did not correctly validate iov segments. A local attacker with access to a SCSI device could send specially crafted requests to crash the system, leading to a denial of service. Dan Rosenberg discovered that the RDS protocol did not correctly check ioctl arguments. A local attacker could exploit this to crash the system, leading to a denial of service.

tags | advisory, denial of service, kernel, local, protocol
systems | linux, ubuntu
advisories | CVE-2010-4076, CVE-2010-4077, CVE-2010-4158, CVE-2010-4163, CVE-2010-4175
SHA-256 | 8b47c6ebe7f6860e5fb3da4897e68af88a18eccd3e4d5e77146dc58143df0d3c
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