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CVE-2009-2847

kernel: information leak in sigaltstack

The do_sigaltstack function in kernel/signal.c in Linux kernel 2.4 through 2.4.37 and 2.6 before 2.6.31-rc5, when running on 64-bit systems, does not clear certain padding bytes from a structure, which allows local users to obtain sensitive information from the kernel stack via the sigaltstack function.

CVSS 2.0 · 4.9 Medium EPSS < 1% KEV · Not listed
Vendors
Linux Redhat
Products
Kernel Linux Linux Kernel and 3 more
CVE-2009-2698

kernel: udp socket NULL ptr dereference

The udp_sendmsg function in the UDP implementation in (1) net/ipv4/udp.c and (2) net/ipv6/udp.c in the Linux kernel before 2.6.19 allows local users to gain privileges or cause a denial of service (NULL pointer dereference and system crash) via vectors involving the MSG_MORE flag and a UDP socket.

CVSS 3.1 · 7.8 High EPSS 7.1% KEV · Not listed
Vendors
Canonical Fedoraproject Linux and 3 more
Products
Ubuntu Linux Fedora Linux Kernel and 11 more
CVE-2009-2695

kernel: SELinux and mmap_min_addr

The Linux kernel before 2.6.31-rc7 does not properly prevent mmap operations that target page zero and other low memory addresses, which allows local users to gain privileges by exploiting NULL pointer dereference vulnerabilities, related to (1) the default configuration of the allow_unconfined_mmap_low boolean in SELinux on Red Hat Enterprise Linux (RHEL) 5, (2) an error that causes allow_unconfined_mmap_low to be ignored in the unconfined_t domain, (3) lack of a requirement for the CAP_SYS_RAWIO capability for these mmap operations, and (4) interaction between the mmap_min_addr protection mechanism and certain application programs.

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-2009-2692

kernel: uninit op in SOCKOPS_WRAP() leads to privesc

The Linux kernel 2.6.0 through 2.6.30.4, and 2.4.4 through 2.4.37.4, does not initialize all function pointers for socket operations in proto_ops structures, which allows local users to trigger a NULL pointer dereference and gain privileges by using mmap to map page zero, placing arbitrary code on this page, and then invoking an unavailable operation, as demonstrated by the sendpage operation (sock_sendpage function) on a PF_PPPOX socket.

CVSS 3.1 · 7.8 High EPSS 14.6% KEV · Not listed
Vendors
Debian Linux Redhat and 1 more
Products
Debian Linux Linux Kernel Enterprise Linux and 8 more
CVE-2009-2409

deprecate MD2 in SSL cert validation (Kaminsky)

The Network Security Services (NSS) library before 3.12.3, as used in Firefox; GnuTLS before 2.6.4 and 2.7.4; OpenSSL 0.9.8 through 0.9.8k; and other products support MD2 with X.509 certificates, which might allow remote attackers to spoof certificates by using MD2 design flaws to generate a hash collision in less than brute-force time. NOTE: the scope of this issue is currently limited because the amount of computation required is still large.

CVSS 2.0 · 5.1 Medium EPSS 4.3% KEV · Not listed
Vendors
Gnu Mozilla Openssl and 1 more
Products
Gnutls Network Security Services Openssl and 4 more
CVE-2009-2408

firefox/nss: doesn't handle NULL in Common Name properly

Mozilla Network Security Services (NSS) before 3.12.3, Firefox before 3.0.13, Thunderbird before 2.0.0.23, and SeaMonkey before 1.1.18 do not properly handle a '\0' character in a domain name in the subject's Common Name (CN) field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority. NOTE: this was originally reported for Firefox before 3.5.

CVSS 3.1 · 5.9 Medium EPSS 5.7% KEV · Not listed
Vendors
Canonical Debian Mozilla and 3 more
Products
Ubuntu Linux Debian Linux Firefox and 8 more
CVE-2009-2407

kernel: ecryptfs heap overflow in parse_tag_3_packet()

Heap-based buffer overflow in the parse_tag_3_packet function in fs/ecryptfs/keystore.c in the eCryptfs subsystem in the Linux kernel before 2.6.30.4 allows local users to cause a denial of service (system crash) or possibly gain privileges via vectors involving a crafted eCryptfs file, related to a large encrypted key size in a Tag 3 packet.

CVSS 2.0 · 6.9 Medium EPSS < 1% KEV · Not listed
Vendors
Linux Redhat
Products
Linux Kernel Enterprise Linux Rhel Eus
CVE-2009-2406

kernel: ecryptfs stack overflow in parse_tag_11_packet()

Stack-based buffer overflow in the parse_tag_11_packet function in fs/ecryptfs/keystore.c in the eCryptfs subsystem in the Linux kernel before 2.6.30.4 allows local users to cause a denial of service (system crash) or possibly gain privileges via vectors involving a crafted eCryptfs file, related to not ensuring that the key signature length in a Tag 11 packet is compatible with the key signature buffer size.

CVSS 2.0 · 6.9 Medium EPSS < 1% KEV · Not listed
Vendors
Linux Redhat
Products
Kernel Linux Kernel Enterprise Linux and 1 more
CVE-2009-2404

nss regexp heap overflow

Heap-based buffer overflow in a regular-expression parser in Mozilla Network Security Services (NSS) before 3.12.3, as used in Firefox, Thunderbird, SeaMonkey, Evolution, Pidgin, and AOL Instant Messenger (AIM), allows remote SSL servers to cause a denial of service (application crash) or possibly execute arbitrary code via a long domain name in the subject's Common Name (CN) field of an X.509 certificate, related to the cert_TestHostName function.

CVSS 2.0 · 9.3 Critical EPSS 4.2% KEV · Not listed
Vendors
Aol Gnome Mozilla and 2 more
Products
Instant Messenger Evolution Firefox and 6 more
CVE-2009-1895

kernel: personality: fix PER_CLEAR_ON_SETID

The personality subsystem in the Linux kernel before 2.6.31-rc3 has a PER_CLEAR_ON_SETID setting that does not clear the ADDR_COMPAT_LAYOUT and MMAP_PAGE_ZERO flags when executing a setuid or setgid program, which makes it easier for local users to leverage the details of memory usage to (1) conduct NULL pointer dereference attacks, (2) bypass the mmap_min_addr protection mechanism, or (3) defeat address space layout randomization (ASLR).

CVSS 2.0 · 7.2 High EPSS < 1% KEV · Not listed
Vendors
Canonical Debian Linux and 1 more
Products
Ubuntu Linux Debian Linux Linux Kernel and 3 more
CVE-2009-1389

kernel: r8169: fix crash when large packets are received

Buffer overflow in the RTL8169 NIC driver (drivers/net/r8169.c) in the Linux kernel before 2.6.30 allows remote attackers to cause a denial of service (kernel memory corruption and crash) via a long packet.

CVSS 2.0 · 7.8 High EPSS 5.5% KEV · Not listed
Vendors
Linux Redhat
Products
Kernel Linux Kernel Enterprise Linux and 2 more
CVE-2009-1385

kernel: e1000_clean_rx_irq() denial of service

Integer underflow in the e1000_clean_rx_irq function in drivers/net/e1000/e1000_main.c in the e1000 driver in the Linux kernel before 2.6.30-rc8, the e1000e driver in the Linux kernel, and Intel Wired Ethernet (aka e1000) before 7.5.5 allows remote attackers to cause a denial of service (panic) via a crafted frame size.

CVSS 2.0 · 7.8 High EPSS 33.7% KEV · Not listed
Vendors
Intel Linux Redhat
Products
E1000 Kernel Linux Kernel and 3 more
CVE-2009-1337

kernel: exit_notify: kill the wrong capable(CAP_KILL) check

The exit_notify function in kernel/exit.c in the Linux kernel before 2.6.30-rc1 does not restrict exit signals when the CAP_KILL capability is held, which allows local users to send an arbitrary signal to a process by running a program that modifies the exit_signal field and then uses an exec system call to launch a setuid application.

CVSS 2.0 · 4.4 Medium EPSS 1.3% KEV · Not listed
Vendors
Linux Redhat
Products
Linux Kernel Enterprise Linux Enterprise Mrg and 1 more
CVE-2009-1336

kernel: nfsv4 client can be crashed by stating a long filename

fs/nfs/client.c in the Linux kernel before 2.6.23 does not properly initialize a certain structure member that stores the maximum NFS filename length, which allows local users to cause a denial of service (OOPS) via a long filename, related to the encode_lookup function.

CVSS 2.0 · 4.9 Medium EPSS < 1% KEV · Not listed
Vendors
Linux Redhat
Products
Linux Kernel Enterprise Linux Rhel Eus
CVE-2009-1252

ntp: remote arbitrary code execution vulnerability if autokeys is enabled

Stack-based buffer overflow in the crypto_recv function in ntp_crypto.c in ntpd in NTP before 4.2.4p7 and 4.2.5 before 4.2.5p74, when OpenSSL and autokey are enabled, allows remote attackers to execute arbitrary code via a crafted packet containing an extension field.

CVSS 2.0 · 6.8 Medium EPSS 21.3% KEV · Not listed
Vendors
Ntp Redhat
Products
Ntp Enterprise Linux Rhel Eus
CVE-2009-0834

kernel: x86-64: syscall-audit: 32/64 syscall hole

The audit_syscall_entry function in the Linux kernel 2.6.28.7 and earlier on the x86_64 platform does not properly handle (1) a 32-bit process making a 64-bit syscall or (2) a 64-bit process making a 32-bit syscall, which allows local users to bypass certain syscall audit configurations via crafted syscalls, a related issue to CVE-2009-0342 and CVE-2009-0343.

CVSS 2.0 · 3.6 Low EPSS < 1% KEV · Not listed
Vendors
Canonical Debian Linux and 3 more
Products
Ubuntu Linux Debian Linux Linux Kernel and 12 more
CVE-2009-0778

kernel: rt_cache leak leads to lack of network connectivity

The icmp_send function in net/ipv4/icmp.c in the Linux kernel before 2.6.25, when configured as a router with a REJECT route, does not properly manage the Protocol Independent Destination Cache (aka DST) in some situations involving transmission of an ICMP Host Unreachable message, which allows remote attackers to cause a denial of service (connectivity outage) by sending a large series of packets to many destination IP addresses within this REJECT route, related to an "rt_cache leak."

CVSS 2.0 · 7.1 High EPSS 4.6% KEV · Not listed
Vendors
Linux Microsoft Redhat and 1 more
Products
Linux Kernel Windows Enterprise Linux and 6 more
CVE-2009-0692

dhclient: stack overflow leads to arbitrary code execution as root

Stack-based buffer overflow in the script_write_params method in client/dhclient.c in ISC DHCP dhclient 4.1 before 4.1.0p1, 4.0 before 4.0.1p1, 3.1 before 3.1.2p1, 3.0, and 2.0 allows remote DHCP servers to execute arbitrary code via a crafted subnet-mask option.

CVSS 2.0 · 10.0 Critical EPSS 25.8% KEV · Not listed
Vendors
Isc Redhat
Products
Dhcp Enterprise Linux Rhel Eus
CVE-2009-0689

array index error in dtoa implementation of many products

Array index error in the (1) dtoa implementation in dtoa.c (aka pdtoa.c) and the (2) gdtoa (aka new dtoa) implementation in gdtoa/misc.c in libc, as used in multiple operating systems and products including in FreeBSD 6.4 and 7.2, NetBSD 5.0, OpenBSD 4.5, Mozilla Firefox 3.0.x before 3.0.15 and 3.5.x before 3.5.4, K-Meleon 1.5.3, SeaMonkey 1.1.8, and other products, allows context-dependent attackers to cause a denial of service (application crash) and possibly execute arbitrary code via a large precision value in the format argument to a printf function, which triggers incorrect memory allocation and a heap-based buffer overflow during conversion to a floating-point number.

CVSS 2.0 · 6.8 Medium EPSS 29.4% KEV · Not listed
Vendors
Freebsd K-meleon Project Mozilla and 3 more
Products
Freebsd K-meleon Firefox and 6 more
CVE-2009-0159

ntp: buffer overflow in ntpq

Stack-based buffer overflow in the cookedprint function in ntpq/ntpq.c in ntpq in NTP before 4.2.4p7-RC2 allows remote NTP servers to execute arbitrary code via a crafted response.

CVSS 2.0 · 6.8 Medium EPSS 13.2% KEV · Not listed
Vendors
Ntp Redhat
Products
Ntp Enterprise Linux Rhel Eus