kernel: TLB flush happens too late on mremap

Since Linux kernel version 3.2, the mremap() syscall performs TLB flushes after dropping pagetable locks. If a syscall such as ftruncate() removes entries from the pagetables of a task that is in the middle of mremap(), a stale TLB entry can remain for a short time that permits access to a physical page after it has been released back to the page allocator and reused. This is fixed in the following kernel versions: 4.9.135, 4.14.78, 4.18.16, 4.19.

wireshark: CoAP dissector crash

In Wireshark 2.6.0 to 2.6.3, the CoAP dissector could crash. This was addressed in epan/dissectors/packet-coap.c by ensuring that the piv length is correctly computed.

The ARM-based hardware debugging feature on Raspberry Pi 3 module B+ and possibly other devices allows non-secure EL1 code to read/write any EL3 (the highest privilege level in ARMv8) memory/register via inter-processor debugging. With a debug host processor A running in non-secure EL1 and a debug target processor B running in any privilege level, the debugging feature allows A to halt B and promote B to any privilege level. As a debug host, A has full control of B even if B owns a higher privilege level than A. Accordingly, A can read/write any EL3 memory/register via B. Also, with this memory access, A can execute arbitrary code in EL3.

qpdf: recursive calls can lead to a DoS in libqpdf/QPDFWriter.cc

In QPDF 8.2.1, in libqpdf/QPDFWriter.cc, QPDFWriter::unparseObject and QPDFWriter::unparseChild have recursive calls for a long time, which allows remote attackers to cause a denial of service via a crafted PDF file.

An open redirect vulnerability exists in the Access Manager Identity Provider prior to 4.4 SP3.

Multiple instances of this vulnerability (Unsafe ActiveX Control Marked Safe For Scripting) have been identified in the third-party ActiveX object provided to GE iFIX versions 2.0 - 5.8 by Gigasoft. Only the independent use of the Gigasoft charting package outside the iFIX product may expose users to the reported vulnerability. The reported method shown to impact Internet Explorer is not exposed in the iFIX product, nor is the core functionality of the iFIX product known to be impacted.

An XXE vulnerability exists in CASE Suite Versions 3.10 and prior when processing parameter entities, which may allow remote file disclosure.

In WECON Technology Co., Ltd. PI Studio HMI versions 4.1.9 and prior and PI Studio versions 4.2.34 and prior when parsing project files, the XMLParser that ships with Wecon PIStudio is vulnerable to a XML external entity injection attack, which may allow sensitive information disclosure.

On D-Link DIR-823G 2018-09-19 devices, the GoAhead configuration allows /HNAP1 SetPasswdSettings commands without authentication to trigger an admin password change.

An issue was discovered in BTITeam XBTIT 2.5.4. The "returnto" parameter of account_change.php is vulnerable to an open redirect, a different vulnerability than CVE-2018-15683.

Newgen OmniFlow Intelligent Business Process Suite (iBPS) 7.0 has an "improper server side validation" vulnerability where client-side validations are tampered, and inappropriate information is stored on the server side and fetched from the server every time the user visits the D, creating business confusion. In the worst case, all available resources are consumed while processing the data, resulting in unavailability of the service to legitimate users. This occurs because non-editable parameters can be modified by manually editing a disabled form field within the developer options.

dotCMS before 5.0.2 has open redirects via the html/common/forward_js.jsp FORWARD_URL parameter or the html/portlet/ext/common/page_preview_popup.jsp hostname parameter.

An XML External Entity (XXE) vulnerability exists in iWay Data Quality Suite Web Console 10.6.1.ga-2016-11-20.

The PhonePe wallet (aka com.PhonePe.app) application 3.0.6 through 3.3.26 for Android might allow attackers to perform Account Takeover attacks by exploiting its Forgot Password feature. NOTE: the vendor says that, to exploit this, the user has to explicitly install a malicious app and provide accessibility permission to the malicious app, that the Android platform provides fair warnings to the users before turning on accessibility for any application, and that it believes it is similar to installing malicious keyboards, or malicious apps taking screenshots

An issue was discovered in Enalean Tuleap before 10.5. Reset password links are not invalidated after a user changes its password.

An XML external entity (XXE) vulnerability in Kofax Front Office Server Administration Console version 4.1.1.11.0.5212 allows remote authenticated users to read arbitrary files via crafted XML inside an imported package configuration (.ZIP file) within the Kofax/KFS/Admin/PackageService/package/upload file parameter.

Elasticsearch Security versions 6.5.0 and 6.5.1 contain an XXE flaw in Machine Learning's find_file_structure API. If a policy allowing external network access has been added to Elasticsearch's Java Security Manager then an attacker could send a specially crafted request capable of leaking content of local files on the Elasticsearch node. This could allow a user to access information that they should not have access to.

Telegram Desktop (aka tdesktop) 1.3.14 might allow attackers to cause a denial of service (assertion failure and application exit) via an "Edit color palette" search that triggers an "index out of range" condition. NOTE: this issue is disputed by multiple third parties because the described attack scenario does not cross a privilege boundary

openvswitch: Error during bundle commit in ofproto/ofproto.c:ofproto_rule_insert__() allows for crash

An issue was discovered in Open vSwitch (OvS) 2.7.x through 2.7.6, affecting ofproto_rule_insert__ in ofproto/ofproto.c. During bundle commit, flows that are added in a bundle are applied to ofproto in order. If a flow cannot be added (e.g., the flow action is a go-to for a group id that does not exist), OvS tries to revert back all previous flows that were successfully applied from the same bundle. This is possible since OvS maintains list of old flows that were replaced by flows from the bundle. While reinserting old flows, OvS has an assertion failure due to a check on rule state != RULE_INITIALIZED. This would work for new flows, but for an old flow the rule state is RULE_REMOVED. The assertion failure causes an OvS crash.

openvswitch: Mishandle of group mods in lib/ofp-util.c:parse_group_prop_ntr_selection_method() allows for assertion failure

An issue was discovered in Open vSwitch (OvS) 2.7.x through 2.7.6, affecting parse_group_prop_ntr_selection_method in lib/ofp-util.c. When decoding a group mod, it validates the group type and command after the whole group mod has been decoded. The OF1.5 decoder, however, tries to use the type and command earlier, when it might still be invalid. This causes an assertion failure (via OVS_NOT_REACHED). ovs-vswitchd does not enable support for OpenFlow 1.5 by default.