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Linux < 4.20.14 - Virtual Address 0 is Mappable via Privileged write() to /proc/*/mem
By following the codepath that Andrea Arcangeli pointed out in his mails
regarding the last bug I reported, I noticed that it is possible for userspace
on a normal distro to map virtual address 0, which on an...
Android - binder Use-After-Free via racy Initialization of ->allow_user_free
The following bug report solely looks at the situation on the upstream master
branch; while from a cursory look, at least the wahoo kernel also looks
affected, I have only properly tested this on upstream master.
The...
Android - getpidcon() Usage in Hardware binder ServiceManager Permits ACL Bypass
We already reported four bugs in Android that are caused by the use of
getpidcon(), which is fundamentally unsafe:
https://bugs.chromium.org/p/project-zero/issues/detail?id=727 (AndroidID-27111481...
Bull/IBM AIX Clusterwatch/Watchware - Multiple Vulnerabilities
Bull Clusterwatch/Watchware is a VERY VERY OLD tool used by sysadmins to manage their AIX clusters.
Marble effect in the web banner and questionable font: it smells the 90s !
Tool is mainly a web app with CGIs (shell scripts and...
Conext ComBox 865-1058 - Denial of Service
#Exploit Title: Conext ComBox - Denial of Service (HTTP-POST)
#Description: The exploit cause the device to self-reboot, constituting a denial of service.
#Google Dork: "Conext ComBox" + "JavaScript was not detected" /OR/ "Conext ComBox" + "Recover...
macOS XNU - Copy-on-Write Behavior Bypass via Mount of User-Owned Filesystem Image
XNU has various interfaces that permit creating copy-on-write copies of data
between processes, including out-of-line message descriptors in mach messages.
It is important that the copied memory is protected...
Google Chrome < M72 - FileWriterImpl Use-After-Free
There's a use-after-free in the implementation of the FileWriter component of the mojo bindings for the filesystem API.
The browser-process side of this API is defined in...
tcpdump < 4.9.3 - Multiple Heap-Based Out-of-Bounds Reads
Through fuzzing of network capture .pcap files, we have identified 16 crashes with unique stack traces in tcpdump. These crashes are caused by heap-based out-of-bounds memory reads, and can be reproduced with the latest tcpdump source...
Linux < 4.14.103 / < 4.19.25 - Out-of-Bounds Read and Write in SNMP NAT Module
commit cc2d58634e0f ("netfilter: nf_nat_snmp_basic: use asn1 decoder library",
first in 4.16) changed the nf_nat_snmp_basic module (which, when enabled, parses
and modifies the ASN.1-encoded payloads of SNMP...
Google Chrome < M72 - PaymentRequest Service Use-After-Free
There are several object-lifetime issues in the browser process in the
implementation of payments.mojom.PaymentRequest.
The PaymentRequest object contains a std::unique_ptr to a
PaymentRequestSpec, which is initialised during the...
Google Chrome < M72 - RenderFrameHostImpl::CreateMediaStreamDispatcherHost Use-After-Free
There's a race-condition / object-lifetime issue in the browser process when the browser process shutdown races against the IO thread handling mojo messages from the renderer.
It's (at least) possible to...
Google Chrome < M72 - Use-After-Free in RenderProcessHostImpl Binding for P2PSocketDispatcherHost
There's an object-lifetime issue in the browser process in the handling of P2PSocketDispatcherHost binding in parallel with OnBloatedRenderer event handling.
In RenderProcessHostImpl, we have a...
MikroTik RouterOS < 6.43.12 (stable) / < 6.42.12 (long-term) - Firewall and NAT Bypass
# CVE-2019-3924
A remote, unauthenticated attacker can proxy traffic through RouterOS via probes sent to the agent binary. This PoC demonstrates how to exploit a LAN host from the WAN. A video demonstrating...
MatrixSSL < 4.0.2 - Stack Buffer Overflow Verifying x.509 Certificates
I happened to notice that a public X.509 certificate testcase for CVE-2014-1569 caused a stack buffer overflow in MatrixSSL.
I cleaned up the testcase a bit, to make a better demonstration. You can test it with the...