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CVE-2011-1927

Status Candidate

Overview

The ip_expire function in net/ipv4/ip_fragment.c in the Linux kernel before 2.6.39 does not properly construct ICMP_TIME_EXCEEDED packets after a timeout, which allows remote attackers to cause a denial of service (invalid pointer dereference) via crafted fragmented packets.

Related Files

Ubuntu Security Notice USN-1394-1
Posted Mar 7, 2012
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1394-1 - Aristide Fattori and Roberto Paleari reported a flaw in the Linux kernel's handling of IPv4 icmp packets. A remote user could exploit this to cause a denial of service. Vegard Nossum discovered a leak in the kernel's inotify_init() system call. A local, unprivileged user could exploit this to cause a denial of service. An error was discovered in the kernel's handling of CUSE (Character device in Userspace). A local attacker might exploit this flaw to escalate privilege, if access to /dev/cuse has been modified to allow non-root users. Various other issues were also addressed.

tags | advisory, remote, denial of service, kernel, local, root
systems | linux, ubuntu
advisories | CVE-2011-1927, CVE-2010-4250, CVE-2010-4650, CVE-2011-0006, CVE-2011-0716, CVE-2011-1476, CVE-2011-1477, CVE-2011-1759, CVE-2011-2182, CVE-2011-3619, CVE-2011-4621, CVE-2012-0038, CVE-2012-0044, CVE-2010-4250, CVE-2010-4650, CVE-2011-0006, CVE-2011-0716, CVE-2011-1476, CVE-2011-1477, CVE-2011-1759, CVE-2011-1927, CVE-2011-2182, CVE-2011-3619, CVE-2011-4621, CVE-2012-0038, CVE-2012-0044
MD5 | 949df2a21262fb8d6a914e7f3f1087e3
Ubuntu Security Notice USN-1387-1
Posted Mar 6, 2012
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1387-1 - Aristide Fattori and Roberto Paleari reported a flaw in the Linux kernel's handling of IPv4 icmp packets. A remote user could exploit this to cause a denial of service. A flaw was found in the Linux Ethernet bridge's handling of IGMP (Internet Group Management Protocol) packets. An unprivileged local user could exploit this flaw to crash the system. Han-Wen Nienhuys reported a flaw in the FUSE kernel module. A local user who can mount a FUSE file system could cause a denial of service. Various other issues were also addressed.

tags | advisory, remote, denial of service, kernel, local, protocol
systems | linux, ubuntu
advisories | CVE-2011-1927, CVE-2011-0716, CVE-2011-3353, CVE-2011-3619, CVE-2011-4622, CVE-2012-0038, CVE-2012-0044, CVE-2011-0716, CVE-2011-1927, CVE-2011-3353, CVE-2011-3619, CVE-2011-4622, CVE-2012-0038, CVE-2012-0044
MD5 | b0c9ddd8933c790af07fb3fcdbddec1e
Ubuntu Security Notice USN-1383-1
Posted Mar 6, 2012
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1383-1 - Aristide Fattori and Roberto Paleari reported a flaw in the Linux kernel's handling of IPv4 icmp packets. A remote user could exploit this to cause a denial of service. Dan Rosenberg reported an error in the old ABI compatibility layer of ARM kernels. A local attacker could exploit this flaw to cause a denial of service or gain root privileges. Ben Hutchings reported a flaw in the kernel's handling of corrupt LDM partitions. A local user could exploit this to cause a denial of service or escalate privileges. Various other issues were also addressed.

tags | advisory, remote, denial of service, kernel, local, root
systems | linux, ubuntu
advisories | CVE-2011-1927, CVE-2011-1759, CVE-2011-2182, CVE-2011-2498, CVE-2011-2518, CVE-2011-3619, CVE-2011-1759, CVE-2011-1927, CVE-2011-2182, CVE-2011-2498, CVE-2011-2518, CVE-2011-3619
MD5 | 2aaac62aa9dbea6122489977097684aa
Ubuntu Security Notice USN-1379-1
Posted Feb 29, 2012
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1379-1 - Aristide Fattori and Roberto Paleari reported a flaw in the Linux kernel's handling of IPv4 icmp packets. A remote user could exploit this to cause a denial of service. A flaw was found in the Linux Ethernet bridge's handling of IGMP (Internet Group Management Protocol) packets. An unprivileged local user could exploit this flaw to crash the system. A flaw was discovered in the Linux kernel's AppArmor security interface when invalid information was written to it. An unprivileged local user could use this to cause a denial of service on the system. Various other issues were also addressed.

tags | advisory, remote, denial of service, kernel, local, protocol
systems | linux, ubuntu
advisories | CVE-2011-1927, CVE-2011-0716, CVE-2011-3619, CVE-2011-0716, CVE-2011-1927, CVE-2011-3619
MD5 | ce143cf8b1b8cc8e8cc1bb38636b82a1
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