Apache Standard Taglibs before 1.2.3 allows remote attackers to execute arbitrary code or conduct external XML entity (XXE) attacks via a crafted XSLT extension in a (1) <x:parse> or (2) <x:transform> JSTL XML tag.

Race condition in Apport before 2.17.2-0ubuntu1.1 as packaged in Ubuntu 15.04, before 2.14.70ubuntu8.5 as packaged in Ubuntu 14.10, before 2.14.1-0ubuntu3.11 as packaged in Ubuntu 14.04 LTS, and before 2.0.1-0ubuntu17.9 as packaged in Ubuntu 12.04 LTS allow local users to write to arbitrary files and gain root privileges.

As per upstream samba advisory:

All versions of Samba from 3.5.0 to 4.2.0rc4 are vulnerable to an unexpected code execution vulnerability in the smbd file server daemon.

A malicious client could send packets that may set up the stack in such a way that the freeing of memory in a subsequent anonymous netlogon packet could allow execution of arbitrary code. This code would execute with root privileges.

The snprintf implementation in PostgreSQL before 9.0.20, 9.1.x before 9.1.16, 9.2.x before 9.2.11, 9.3.x before 9.3.7, and 9.4.x before 9.4.2 does not properly handle system-call errors, which allows attackers to obtain sensitive information or have other unspecified impact via unknown vectors, as demonstrated by an out-of-memory error.

Last updated 24 July 2024

Last updated 24 July 2024

Last updated 24 July 2024

Last updated 24 July 2024

Last updated 24 July 2024

Buffer overflow in the nsXMLHttpRequest::AppendToResponseText function ...

Last updated 24 July 2024

It was found that the Linux kernel KVM subsystem's sysenter instruction emulation was not sufficient.

An unprivileged guest user could use this flaw to escalate their privileges by tricking the hypervisor to emulate a SYSENTER instruction in 16-bit mode, if the guest OS does not initialize the SYSENTER MSRs.

Please note that the Red Hat Enterprise Linux with KVM certified guest operating systems do initialize the SYSENTER MSRs and are thus not vulnerable to this issue when running on KVM hypervisor.

References: http://www.openwall.com/lists/oss-security/2015/01/27/6

Upstream patch: http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f3747379accba8e95d70cec0eae0582c8c182050

Acknowledgements:

Red Hat would like to thank Nadav Amit for reporting this issue.

Last updated 24 July 2024

Last updated 24 July 2024

Last updated 24 July 2024

DISPUTED Multiple integer overflows in the lzo1xdecompresssafe function in lib/lzo/lzo1xdecompresssafe.c in the LZO decompressor in the Linux kernel before 3.15.2 allow context-dependent attackers to cause a denial of service (memory corruption) via a crafted Literal Run. NOTE: the author of the LZO algorithms says "the Linux kernel is not affected; media hype."

arch/x86/kvm/vmx.c in the KVM subsystem in the Linux kernel before 3.17.2 on Intel processors does not ensure that the value in the CR4 control register remains the same after a VM entry, which allows host OS users to kill arbitrary processes or cause a denial of service (system disruption) by leveraging /dev/kvm access, as demonstrated by PRSETTSC prctl calls within a modified copy of QEMU.

It was reported [1] that iptables can allow protocols that do not have a protocol handler kernel module loaded.

Given following iptables ruleset: -P FORWARD DROP -A FORWARD -m sctp --dport 9 -j ACCEPT -A FORWARD -p tcp --dport 80 -j ACCEPT -A FORWARD -p tcp -m conntrack -m state ESTABLISHED,RELATED -j ACCEPT

One would assume that this allows SCTP on port 9 and TCP on port 80. Unfortunately, if the SCTP conntrack module is not loaded, this allows all SCTP communication to pass through, i.e. -p sctp -j ACCEPT

[1]: http://www.spinics.net/lists/netfilter-devel/msg33430.html

Last updated 24 July 2024

It was found that routing packets to too many different dsts/too fast can lead to a excessive resource consumption.

A remote attacker can use this flaw to crash the system.

Introduced by: http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f88649721268999bdff09777847080a52004f691

Acknowledgements:

This issue was found by Marcelo Ricardo Leitner of Red Hat.

An use after free flaw was found in the Linux kernel SCTP implementation handled auth keys reference counting during INIT collisions.

A remote user could use this flaw to crash the system or, though unlikely, escalate their privileges on the system.

Upstream patch:

https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=600ddd6825543962fb807884169e57b580dba208

Acknowledgements:

This issue was discovered by Sun Baoliang of Red Hat.

It was found that the Linux kernel's Infiniband subsystem did not properly sanitize input parameters while registering memory regions from the userspace via the (u)verbs API. As a result, an unrestricted physical memory access could be achieved.

A local user with access to /dev/infiniband/uverbsX could use this flaw to crash the system or, potentially, escalate their privileges on the system.

It was reported [1] that running strings, nm or objdump on a constructed PE file [2] leads to out-of bounds write to an unitialized memory area. Upstream path for this issue is at [3].

[1]: https://sourceware.org/bugzilla/showbug.cgi?id=17512#c0 [2]: https://sourceware.org/bugzilla/attachment.cgi?id=7849 [3]: https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=7e1e19887abd24aeb15066b141cdff5541e0ec8e

Last updated 24 July 2024

A heap overflow was reborted [1] when running objdump on a specially crafted PE executable [2]. Upstream patches that address this are at [3] and [4].

[1]: https://sourceware.org/bugzilla/showbug.cgi?id=17512#c17 [2]: https://sourceware.org/bugzilla/attachment.cgi?id=7862 [3]: https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=5a4b0ccc20ba30caef53b01bee2c0aaa5b855339 [4]: https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=acafeb6056bec47d7211cf462a7c211a8c95cf42

Last updated 24 July 2024

Last updated 24 July 2024

Directory traversal vulnerability allowing random files deleteion/creation was reported [1] in binutils. Upstream patch is in [2]. Reproducer is available in https://sourceware.org/bugzilla/showbug.cgi?id=17552#c0

[1]: https://sourceware.org/bugzilla/showbug.cgi?id=17552 [2]: https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=dd9b91de2149ee81d47f708e7b0bbf57da10ad42

Last updated 24 July 2024

Last updated 24 July 2024