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CVE-2013-4345

Status Candidate

Overview

Off-by-one error in the get_prng_bytes function in crypto/ansi_cprng.c in the Linux kernel through 3.11.4 makes it easier for context-dependent attackers to defeat cryptographic protection mechanisms via multiple requests for small amounts of data, leading to improper management of the state of the consumed data.

Related Files

Debian Security Advisory 2906-1
Posted Apr 25, 2014
Authored by Debian | Site debian.org

Debian Linux Security Advisory 2906-1 - Several vulnerabilities have been discovered in the Linux kernel that may lead to a denial of service, information leak or privilege escalation.

tags | advisory, denial of service, kernel, vulnerability
systems | linux, debian
advisories | CVE-2013-0343, CVE-2013-2147, CVE-2013-2889, CVE-2013-2893, CVE-2013-4162, CVE-2013-4299, CVE-2013-4345, CVE-2013-4512, CVE-2013-4587, CVE-2013-6367, CVE-2013-6380, CVE-2013-6381, CVE-2013-6382, CVE-2013-6383, CVE-2013-7263, CVE-2013-7264, CVE-2013-7265, CVE-2013-7339, CVE-2014-0101, CVE-2014-1444, CVE-2014-1445, CVE-2014-1446, CVE-2014-1874, CVE-2014-2039, CVE-2014-2523, CVE-2103-2929
SHA-256 | 336839d986f877d0c9633d42e6961fa76ae807751676c40199ee1f7de18091c3
Ubuntu Security Notice USN-2158-1
Posted Apr 1, 2014
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2158-1 - Stephan Mueller reported an error in the Linux kernel's ansi cprng random number generator. This flaw makes it easier for a local attacker to break cryptographic protections. Nico Golde and Fabian Yamaguchi reported buffer underflow errors in the implementation of the XFS filesystem in the Linux kernel. A local user with CAP_SYS_ADMIN could exploit these flaw to cause a denial of service (memory corruption) or possibly other unspecified issues. Various other issues were also addressed.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2013-4345, CVE-2013-6382, CVE-2014-1690
SHA-256 | 7be186da02dc9637de795e1d1ebb3e3f3911bac940397c36f5cb4ade06b2be03
Ubuntu Security Notice USN-2110-1
Posted Feb 19, 2014
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2110-1 - Vasily Kulikov reported a flaw in the Linux kernel's implementation of ptrace. An unprivileged local user could exploit this flaw to obtain sensitive information from kernel memory. Stephan Mueller reported an error in the Linux kernel's ansi cprng random number generator. This flaw makes it easier for a local attacker to break cryptographic protections. Andrew Honig reported a flaw in the Linux Kernel's kvm_vm_ioctl_create_vcpu function of the Kernel Virtual Machine (KVM) subsystem. A local user could exploit this flaw to gain privileges on the host machine. Various other issues were also addressed.

tags | advisory, kernel, local
systems | linux, ubuntu
advisories | CVE-2013-2929, CVE-2013-4345, CVE-2013-4587, CVE-2013-6367, CVE-2013-6380, CVE-2013-6382, CVE-2013-7263, CVE-2013-7264, CVE-2013-7265, CVE-2013-7266, CVE-2013-7267, CVE-2013-7268, CVE-2013-7269, CVE-2013-7270, CVE-2013-7271, CVE-2013-7281, CVE-2013-2929, CVE-2013-4345, CVE-2013-4587, CVE-2013-6367, CVE-2013-6380, CVE-2013-6382, CVE-2013-7263, CVE-2013-7264, CVE-2013-7265, CVE-2013-7266, CVE-2013-7267, CVE-2013-7268
SHA-256 | f5d5f017a1f978753da8eaddad5530e205560b414e1034f60631ed87c66c73ff
Ubuntu Security Notice USN-2109-1
Posted Feb 19, 2014
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2109-1 - Vasily Kulikov reported a flaw in the Linux kernel's implementation of ptrace. An unprivileged local user could exploit this flaw to obtain sensitive information from kernel memory. Stephan Mueller reported an error in the Linux kernel's ansi cprng random number generator. This flaw makes it easier for a local attacker to break cryptographic protections. Andrew Honig reported a flaw in the Linux Kernel's kvm_vm_ioctl_create_vcpu function of the Kernel Virtual Machine (KVM) subsystem. A local user could exploit this flaw to gain privileges on the host machine. Various other issues were also addressed.

tags | advisory, kernel, local
systems | linux, ubuntu
advisories | CVE-2013-2929, CVE-2013-4345, CVE-2013-4587, CVE-2013-6367, CVE-2013-6380, CVE-2013-6382, CVE-2013-7263, CVE-2013-7264, CVE-2013-7265, CVE-2013-7266, CVE-2013-7267, CVE-2013-7268, CVE-2013-7269, CVE-2013-7270, CVE-2013-7271, CVE-2013-7281, CVE-2013-2929, CVE-2013-4345, CVE-2013-4587, CVE-2013-6367, CVE-2013-6380, CVE-2013-6382, CVE-2013-7263, CVE-2013-7264, CVE-2013-7265, CVE-2013-7266, CVE-2013-7267, CVE-2013-7268
SHA-256 | f9a9229f276d5732e342ff0e1d0acf9d5b773dd92e400f9e84538701ee334b3a
Ubuntu Security Notice USN-2071-1
Posted Jan 3, 2014
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2071-1 - Dave Jones and Vince Weaver reported a flaw in the Linux kernel's per event subsystem that allows normal users to enable function tracing. An unprivileged local user could exploit this flaw to obtain potentially sensitive information from the kernel. Stephan Mueller reported an error in the Linux kernel's ansi cprng random number generator. This flaw makes it easier for a local attacker to break cryptographic protections. Various other issues were also addressed.

tags | advisory, kernel, local
systems | linux, ubuntu
advisories | CVE-2013-2930, CVE-2013-4345, CVE-2013-4511, CVE-2013-4513, CVE-2013-4514, CVE-2013-4515, CVE-2013-6383, CVE-2013-6763, CVE-2013-7027, CVE-2013-2930, CVE-2013-4345, CVE-2013-4511, CVE-2013-4513, CVE-2013-4514, CVE-2013-4515, CVE-2013-6383, CVE-2013-6763, CVE-2013-7027
SHA-256 | 950fdbf93ba8d5dce731ad4c9360b63e9799c57bc03fbb36980e0d38e0dd642f
Ubuntu Security Notice USN-2076-1
Posted Jan 3, 2014
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2076-1 - Dave Jones and Vince Weaver reported a flaw in the Linux kernel's per event subsystem that allows normal users to enable function tracing. An unprivileged local user could exploit this flaw to obtain potentially sensitive information from the kernel. Stephan Mueller reported an error in the Linux kernel's ansi cprng random number generator. This flaw makes it easier for a local attacker to break cryptographic protections. Various other issues were also addressed.

tags | advisory, kernel, local
systems | linux, ubuntu
advisories | CVE-2013-2930, CVE-2013-4345, CVE-2013-4511, CVE-2013-4513, CVE-2013-4514, CVE-2013-4515, CVE-2013-6383, CVE-2013-6763, CVE-2013-7027, CVE-2013-2930, CVE-2013-4345, CVE-2013-4511, CVE-2013-4513, CVE-2013-4514, CVE-2013-4515, CVE-2013-6383, CVE-2013-6763, CVE-2013-7027
SHA-256 | 369bc7b03370175686092bea9ca0944a541a683c642bcbd0256037a01cc4adc9
Ubuntu Security Notice USN-2072-1
Posted Jan 3, 2014
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2072-1 - Dave Jones and Vince Weaver reported a flaw in the Linux kernel's per event subsystem that allows normal users to enable function tracing. An unprivileged local user could exploit this flaw to obtain potentially sensitive information from the kernel. Stephan Mueller reported an error in the Linux kernel's ansi cprng random number generator. This flaw makes it easier for a local attacker to break cryptographic protections. Various other issues were also addressed.

tags | advisory, kernel, local
systems | linux, ubuntu
advisories | CVE-2013-2930, CVE-2013-4345, CVE-2013-4511, CVE-2013-4513, CVE-2013-4514, CVE-2013-4515, CVE-2013-6383, CVE-2013-6763, CVE-2013-7027, CVE-2013-2930, CVE-2013-4345, CVE-2013-4511, CVE-2013-4513, CVE-2013-4514, CVE-2013-4515, CVE-2013-6383, CVE-2013-6763, CVE-2013-7027
SHA-256 | e0e631b5cb68d5150fb0ee9e34d5bcfe2ad457487aef49713af73f9701a73dd0
Ubuntu Security Notice USN-2074-1
Posted Jan 3, 2014
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2074-1 - Dave Jones and Vince Weaver reported a flaw in the Linux kernel's per event subsystem that allows normal users to enable function tracing. An unprivileged local user could exploit this flaw to obtain potentially sensitive information from the kernel. Stephan Mueller reported an error in the Linux kernel's ansi cprng random number generator. This flaw makes it easier for a local attacker to break cryptographic protections. Various other issues were also addressed.

tags | advisory, kernel, local
systems | linux, ubuntu
advisories | CVE-2013-2930, CVE-2013-4345, CVE-2013-4511, CVE-2013-4513, CVE-2013-4514, CVE-2013-4515, CVE-2013-6383, CVE-2013-6763, CVE-2013-7027, CVE-2013-2930, CVE-2013-4345, CVE-2013-4511, CVE-2013-4513, CVE-2013-4514, CVE-2013-4515, CVE-2013-6383, CVE-2013-6763, CVE-2013-7027
SHA-256 | d76486ba03df467cd3168f55ae5a17113f646535fa022b96f7a762b753cd857c
Ubuntu Security Notice USN-2075-1
Posted Jan 3, 2014
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2075-1 - Vasily Kulikov reported a flaw in the Linux kernel's implementation of ptrace. An unprivileged local user could exploit this flaw to obtain sensitive information from kernel memory. Dave Jones and Vince Weaver reported a flaw in the Linux kernel's per event subsystem that allows normal users to enable function tracing. An unprivileged local user could exploit this flaw to obtain potentially sensitive information from the kernel. Various other issues were also addressed.

tags | advisory, kernel, local
systems | linux, ubuntu
advisories | CVE-2013-2929, CVE-2013-2930, CVE-2013-4345, CVE-2013-4348, CVE-2013-4511, CVE-2013-4513, CVE-2013-4514, CVE-2013-4515, CVE-2013-4516, CVE-2013-6378, CVE-2013-6380, CVE-2013-6383, CVE-2013-6763, CVE-2013-7026, CVE-2013-2929, CVE-2013-2930, CVE-2013-4345, CVE-2013-4348, CVE-2013-4511, CVE-2013-4513, CVE-2013-4514, CVE-2013-4515, CVE-2013-4516, CVE-2013-6378, CVE-2013-6380, CVE-2013-6383, CVE-2013-6763, CVE-2013-7026
SHA-256 | 36e9f98726ff3916e206a9b84d5b8c8816cb7f08e016c1754ed8f67fe870c45d
Ubuntu Security Notice USN-2070-1
Posted Jan 3, 2014
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2070-1 - Vasily Kulikov reported a flaw in the Linux kernel's implementation of ptrace. An unprivileged local user could exploit this flaw to obtain sensitive information from kernel memory. Dave Jones and Vince Weaver reported a flaw in the Linux kernel's per event subsystem that allows normal users to enable function tracing. An unprivileged local user could exploit this flaw to obtain potentially sensitive information from the kernel. Various other issues were also addressed.

tags | advisory, kernel, local
systems | linux, ubuntu
advisories | CVE-2013-2929, CVE-2013-2930, CVE-2013-4345, CVE-2013-4348, CVE-2013-4511, CVE-2013-4513, CVE-2013-4514, CVE-2013-4515, CVE-2013-4516, CVE-2013-6378, CVE-2013-6380, CVE-2013-6383, CVE-2013-6763, CVE-2013-7026, CVE-2013-2929, CVE-2013-2930, CVE-2013-4345, CVE-2013-4348, CVE-2013-4511, CVE-2013-4513, CVE-2013-4514, CVE-2013-4515, CVE-2013-4516, CVE-2013-6378, CVE-2013-6380, CVE-2013-6383, CVE-2013-6763, CVE-2013-7026
SHA-256 | 1f5a40a0caee47f048366ec9a46fede7e05d0e0f8905e9ccb5b8744e93164d0e
Ubuntu Security Notice USN-2064-1
Posted Jan 3, 2014
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2064-1 - Stephan Mueller reported an error in the Linux kernel's ansi cprng random number generator. This flaw makes it easier for a local attacker to break cryptographic protections. A flaw was discovered in the Linux kernel's IP Virtual Server (IP_VS) support. A local user with the CAP_NET_ADMIN capability could exploit this flaw to gain additional administrative privileges. Nico Golde and Fabian Yamaguchi reported a flaw in the Linux kernel's debugfs filesystem. An administrative local user could exploit this flaw to cause a denial of service (OOPS). Various other issues were also addressed.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2013-4345, CVE-2013-4588, CVE-2013-6378, CVE-2013-6763, CVE-2013-4345, CVE-2013-4588, CVE-2013-6378, CVE-2013-6763
SHA-256 | 9c3e9f2c814827e600fc7be7c08689fe9beec31c0d63eab9f40e273c13117877
Ubuntu Security Notice USN-2068-1
Posted Jan 3, 2014
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2068-1 - Dave Jones and Vince Weaver reported a flaw in the Linux kernel's per event subsystem that allows normal users to enable function tracing. An unprivileged local user could exploit this flaw to obtain potentially sensitive information from the kernel. Stephan Mueller reported an error in the Linux kernel's ansi cprng random number generator. This flaw makes it easier for a local attacker to break cryptographic protections. Various other issues were also addressed.

tags | advisory, kernel, local
systems | linux, ubuntu
advisories | CVE-2013-2930, CVE-2013-4345, CVE-2013-4511, CVE-2013-4513, CVE-2013-4514, CVE-2013-4515, CVE-2013-6383, CVE-2013-6763, CVE-2013-7027, CVE-2013-2930, CVE-2013-4345, CVE-2013-4511, CVE-2013-4513, CVE-2013-4514, CVE-2013-4515, CVE-2013-6383, CVE-2013-6763, CVE-2013-7027
SHA-256 | 9ba88c4d05009af5298da1c5101367fe60b0c5b5f04995fcb17c489b9983a02e
Ubuntu Security Notice USN-2065-1
Posted Jan 3, 2014
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2065-1 - Stephan Mueller reported an error in the Linux kernel's ansi cprng random number generator. This flaw makes it easier for a local attacker to break cryptographic protections. A flaw was discovered in the Linux kernel's IP Virtual Server (IP_VS) support. A local user with the CAP_NET_ADMIN capability could exploit this flaw to gain additional administrative privileges. Nico Golde and Fabian Yamaguchi reported a flaw in the Linux kernel's debugfs filesystem. An administrative local user could exploit this flaw to cause a denial of service (OOPS). Various other issues were also addressed.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2013-4345, CVE-2013-4588, CVE-2013-6378, CVE-2013-6763, CVE-2013-4345, CVE-2013-4588, CVE-2013-6378, CVE-2013-6763
SHA-256 | ecca3dd977f3d14556b742142ec1bf4b04f66942d3f07a54444555a172a48973
Red Hat Security Advisory 2013-1645-02
Posted Nov 21, 2013
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2013-1645-02 - The kernel packages contain the Linux kernel, the core of any Linux operating system. A flaw was found in the way the Linux kernel's IPv6 implementation handled certain UDP packets when the UDP Fragmentation Offload feature was enabled. A remote attacker could use this flaw to crash the system or, potentially, escalate their privileges on the system.

tags | advisory, remote, kernel, udp
systems | linux, redhat
advisories | CVE-2012-6542, CVE-2012-6545, CVE-2013-0343, CVE-2013-1928, CVE-2013-1929, CVE-2013-2164, CVE-2013-2234, CVE-2013-2851, CVE-2013-2888, CVE-2013-2889, CVE-2013-2892, CVE-2013-3231, CVE-2013-4345, CVE-2013-4387, CVE-2013-4591, CVE-2013-4592
SHA-256 | 97d65ec407c60f5d7fb845675304c446d1888daf065dc7d8976e4e16c33033ab
Red Hat Security Advisory 2013-1490-01
Posted Oct 31, 2013
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2013-1490-01 - The kernel-rt packages contain the Linux kernel, the core of any Linux operating system. A flaw was found in the way IP packets with an Internet Header Length of zero were processed in the skb_flow_dissect() function in the Linux kernel. A remote attacker could use this flaw to trigger an infinite loop in the kernel, leading to a denial of service. A flaw was found in the way the Linux kernel's IPv6 implementation handled certain UDP packets when the UDP Fragmentation Offload feature was enabled. A remote attacker could use this flaw to crash the system or, potentially, escalate their privileges on the system.

tags | advisory, remote, denial of service, kernel, udp
systems | linux, redhat
advisories | CVE-2013-0343, CVE-2013-2888, CVE-2013-2892, CVE-2013-2893, CVE-2013-2895, CVE-2013-2896, CVE-2013-4299, CVE-2013-4343, CVE-2013-4345, CVE-2013-4348, CVE-2013-4350, CVE-2013-4387
SHA-256 | 940f925cc01d5946698f3c8f547317f6ac1c6b045d85b6aabe0408192318c0ec
Red Hat Security Advisory 2013-1449-01
Posted Oct 22, 2013
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2013-1449-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. A flaw was found in the way the Linux kernel handled the creation of temporary IPv6 addresses. If the IPv6 privacy extension was enabled, an attacker on the local network could disable IPv6 temporary address generation, leading to a potential information disclosure. An information leak flaw was found in the way Linux kernel's device mapper subsystem, under certain conditions, interpreted data written to snapshot block devices. An attacker could use this flaw to read data from disk blocks in free space, which are normally inaccessible.

tags | advisory, kernel, local, info disclosure
systems | linux, redhat
advisories | CVE-2013-0343, CVE-2013-4299, CVE-2013-4345, CVE-2013-4368
SHA-256 | aace845a09644be52cb6b598679ab31730442e1c2bb5e7f17b6cee8c6a7a54ac
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