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CVE-2011-1020

kernel: no access restrictions of /proc/pid/* after setuid program exec

The proc filesystem implementation in the Linux kernel 2.6.37 and earlier does not restrict access to the /proc directory tree of a process after this process performs an exec of a setuid program, which allows local users to obtain sensitive information or cause a denial of service via open, lseek, read, and write system calls.

CVSS 2.0 · 4.6 Medium EPSS < 1% KEV · Not listed
Vendors
Linux Redhat
Products
Linux Kernel Enterprise Linux Enterprise Mrg and 1 more
CVE-2011-1082

kernel: potential kernel deadlock when creating circular epoll file structures

fs/eventpoll.c in the Linux kernel before 2.6.38 places epoll file descriptors within other epoll data structures without properly checking for (1) closed loops or (2) deep chains, which allows local users to cause a denial of service (deadlock or stack memory consumption) via a crafted application that makes epoll_create and epoll_ctl system calls.

CVSS 2.0 · 4.9 Medium EPSS < 1% KEV · Not listed
Vendors
Linux Redhat
Products
Linux Kernel Enterprise Linux Enterprise Mrg and 1 more
CVE-2011-1083

kernel: excessive in kernel CPU consumption when creating large nested epoll structures

The epoll implementation in the Linux kernel 2.6.37.2 and earlier does not properly traverse a tree of epoll file descriptors, which allows local users to cause a denial of service (CPU consumption) via a crafted application that makes epoll_create and epoll_ctl system calls.

CVSS 2.0 · 4.9 Medium EPSS < 1% KEV · Not listed
Vendors
Linux Redhat Suse
Products
Linux Kernel Enterprise Linux Enterprise Linux Desktop and 6 more
CVE-2011-1090

kernel: nfs4: Ensure that ACL pages sent over NFS were not allocated from the slab

The __nfs4_proc_set_acl function in fs/nfs/nfs4proc.c in the Linux kernel before 2.6.38 stores NFSv4 ACL data in memory that is allocated by kmalloc but not properly freed, which allows local users to cause a denial of service (panic) via a crafted attempt to set an ACL.

CVSS 2.0 · 4.9 Medium EPSS < 1% KEV · Not listed
Vendors
Linux Redhat
Products
Linux Kernel Enterprise Linux Enterprise Mrg and 1 more
CVE-2011-1163

kernel: fs/partitions: Corrupted OSF partition table infoleak

The osf_partition function in fs/partitions/osf.c in the Linux kernel before 2.6.38 does not properly handle an invalid number of partitions, which might allow local users to obtain potentially sensitive information from kernel heap memory via vectors related to partition-table parsing.

CVSS 2.0 · 2.1 Low EPSS < 1% KEV · Not listed
Vendors
Linux Redhat Suse
Products
Linux Kernel Enterprise Linux Enterprise Linux Desktop and 7 more
CVE-2011-1170

kernel: ipv4: netfilter: arp_tables: fix infoleak to userspace

net/ipv4/netfilter/arp_tables.c in the IPv4 implementation in the Linux kernel before 2.6.39 does not place the expected '\0' character at the end of string data in the values of certain structure members, which allows local users to obtain potentially sensitive information from kernel memory by leveraging the CAP_NET_ADMIN capability to issue a crafted request, and then reading the argument to the resulting modprobe process.

CVSS 2.0 · 2.1 Low EPSS < 1% KEV · Not listed
Vendors
Linux Redhat
Products
Linux Kernel Enterprise Linux Enterprise Mrg and 1 more
CVE-2011-1171

kernel: ipv4: netfilter: ip_tables: fix infoleak to userspace

net/ipv4/netfilter/ip_tables.c in the IPv4 implementation in the Linux kernel before 2.6.39 does not place the expected '\0' character at the end of string data in the values of certain structure members, which allows local users to obtain potentially sensitive information from kernel memory by leveraging the CAP_NET_ADMIN capability to issue a crafted request, and then reading the argument to the resulting modprobe process.

CVSS 2.0 · 2.1 Low EPSS < 1% KEV · Not listed
Vendors
Linux Redhat
Products
Linux Kernel Enterprise Linux Enterprise Mrg and 1 more
CVE-2011-1172

kernel: ipv6: netfilter: ip6_tables: fix infoleak to userspace

net/ipv6/netfilter/ip6_tables.c in the IPv6 implementation in the Linux kernel before 2.6.39 does not place the expected '\0' character at the end of string data in the values of certain structure members, which allows local users to obtain potentially sensitive information from kernel memory by leveraging the CAP_NET_ADMIN capability to issue a crafted request, and then reading the argument to the resulting modprobe process.

CVSS 2.0 · 2.1 Low EPSS < 1% KEV · Not listed
Vendors
Linux Redhat
Products
Linux Kernel Enterprise Linux Enterprise Mrg and 1 more
CVE-2011-1494

kernel: drivers/scsi/mpt2sas: prevent heap overflows

Integer overflow in the _ctl_do_mpt_command function in drivers/scsi/mpt2sas/mpt2sas_ctl.c in the Linux kernel 2.6.38 and earlier might allow local users to gain privileges or cause a denial of service (memory corruption) via an ioctl call specifying a crafted value that triggers a heap-based buffer overflow.

CVSS 2.0 · 6.9 Medium EPSS < 1% KEV · Not listed
Vendors
Linux Redhat
Products
Linux Kernel Enterprise Linux Enterprise Mrg and 1 more
CVE-2011-1495

kernel: drivers/scsi/mpt2sas: prevent heap overflows

drivers/scsi/mpt2sas/mpt2sas_ctl.c in the Linux kernel 2.6.38 and earlier does not validate (1) length and (2) offset values before performing memory copy operations, which might allow local users to gain privileges, cause a denial of service (memory corruption), or obtain sensitive information from kernel memory via a crafted ioctl call, related to the _ctl_do_mpt_command and _ctl_diag_read_buffer functions.

CVSS 2.0 · 7.2 High EPSS < 1% KEV · Not listed
Vendors
Linux Redhat
Products
Linux Kernel Enterprise Linux Enterprise Mrg and 1 more
CVE-2011-1576

kernel: net: Fix memory leak/corruption on VLAN GRO_DROP

The Generic Receive Offload (GRO) implementation in the Linux kernel 2.6.18 on Red Hat Enterprise Linux 5 and 2.6.32 on Red Hat Enterprise Linux 6, as used in Red Hat Enterprise Virtualization (RHEV) Hypervisor and other products, allows remote attackers to cause a denial of service via crafted VLAN packets that are processed by the napi_reuse_skb function, leading to (1) a memory leak or (2) memory corruption, a different vulnerability than CVE-2011-1478.

CVSS 2.0 · 5.7 Medium EPSS < 1% KEV · Not listed
Vendors
Linux Redhat
Products
Linux Kernel Enterprise Linux Enterprise Mrg and 2 more
CVE-2011-1898

virt: VT-d (PCI passthrough) MSI trap injection

Xen 4.1 before 4.1.1 and 4.0 before 4.0.2, when using PCI passthrough on Intel VT-d chipsets that do not have interrupt remapping, allows guest OS users to gain host OS privileges by "using DMA to generate MSI interrupts by writing to the interrupt injection registers."

CVSS 2.0 · 7.4 High EPSS < 1% KEV · Not listed
Vendors
Citrix Redhat
Products
Xen Enterprise Linux Rhel Eus
CVE-2011-2482

kernel: sctp dos

A certain Red Hat patch to the sctp_sock_migrate function in net/sctp/socket.c in the Linux kernel before 2.6.21, as used in Red Hat Enterprise Linux (RHEL) 5, allows remote attackers to cause a denial of service (NULL pointer dereference and OOPS) via a crafted SCTP packet.

CVSS 3.1 · 7.5 High EPSS 3.8% KEV · Not listed
Vendors
Linux Redhat
Products
Linux Kernel Enterprise Linux Rhel Eus
CVE-2011-2491

kernel: rpc task leak after flock()ing NFS share

The Network Lock Manager (NLM) protocol implementation in the NFS client functionality in the Linux kernel before 3.0 allows local users to cause a denial of service (system hang) via a LOCK_UN flock system call.

CVSS 2.0 · 4.9 Medium EPSS < 1% KEV · Not listed
Vendors
Linux Redhat
Products
Linux Kernel Enterprise Linux Enterprise Linux Desktop and 4 more
CVE-2011-2495

kernel: /proc/PID/io infoleak

fs/proc/base.c in the Linux kernel before 2.6.39.4 does not properly restrict access to /proc/#####/io files, which allows local users to obtain sensitive I/O statistics by polling a file, as demonstrated by discovering the length of another user's password.

CVSS 2.0 · 2.1 Low EPSS < 1% KEV · Not listed
Vendors
Linux Redhat
Products
Linux Kernel Enterprise Linux Enterprise Mrg and 1 more
CVE-2011-2517

kernel: nl80211: missing check for valid SSID size in scan operations

Multiple buffer overflows in net/wireless/nl80211.c in the Linux kernel before 2.6.39.2 allow local users to gain privileges by leveraging the CAP_NET_ADMIN capability during scan operations with a long SSID value.

CVSS 2.0 · 7.2 High EPSS < 1% KEV · Not listed
Vendors
Linux Redhat
Products
Linux Kernel Enterprise Linux Enterprise Linux Desktop and 4 more
CVE-2011-2699

kernel: ipv6: make fragment identifications less predictable

The IPv6 implementation in the Linux kernel before 3.1 does not generate Fragment Identification values separately for each destination, which makes it easier for remote attackers to cause a denial of service (disrupted networking) by predicting these values and sending crafted packets.

CVSS 3.1 · 7.5 High EPSS 5.6% KEV · Not listed
Vendors
Linux Redhat
Products
Linux Kernel Enterprise Linux Enterprise Mrg and 1 more
CVE-2011-2895

BSD compress LZW decoder buffer overflow

The LZW decompressor in (1) the BufCompressedFill function in fontfile/decompress.c in X.Org libXfont before 1.4.4 and (2) compress/compress.c in 4.3BSD, as used in zopen.c in OpenBSD before 3.8, FreeBSD, NetBSD 4.0.x and 5.0.x before 5.0.3 and 5.1.x before 5.1.1, FreeType 2.1.9, and other products, does not properly handle code words that are absent from the decompression table when encountered, which allows context-dependent attackers to trigger an infinite loop or a heap-based buffer overflow, and possibly execute arbitrary code, via a crafted compressed stream, a related issue to CVE-2006-1168 and CVE-2011-2896.

CVSS 2.0 · 9.3 Critical EPSS 8.4% KEV · Not listed
Vendors
Freebsd Freetype Netbsd and 3 more
Products
Freebsd Freetype Netbsd and 4 more