chocobo

chocobo Chocobo Root CVE-2016-8655 Analysis Notes This is the newest Linux privesc, released 2016-12-06 here http://seclists.org/oss-sec/2016/q4/607. References found at this point: http://www.theregister.co.uk/2016/12/07/androiddirtycowkernelpatch/ https://www.exploit-db.com/exploits/40871/ Goal...

CVE-2016-5195

CVE-2016-5195 DirtyCOW PoC Modified from dirtycow.github.ioc include include include include include include include include void map; int f; struct stat st; char name; void madviseThreadvoid arg char str; str = chararg; int i, c = 0; fori = 0; i 100000000; i++ c += madvisemap, 100, MADVDONTNEED;...

Linux Kernel Security Vulnerabilities

The Linux kernel version 4.16 contains a security vulnerability. This vulnerability stems from the wacomwacpenserialenforce function, which calculates and passes an invalid offset to hidfieldextract, resulting in out-of-bounds memory access and potentially leading to information leakage...

Linux Kernel Security Vulnerabilities

The Linux kernel version 5.13 contains a security vulnerability. This vulnerability arises from nftables not skipping expired elements when inserting or deleting catchall elements. As a result, expired elements become invisible but still prevent reinsertion or incorrect deactivation of elements...

Linux Kernel Security Vulnerabilities

The Linux kernel version 6.13 contains security vulnerabilities. These vulnerabilities stem from an error in the update order of NACL firewall entries. The Config field is written first, resulting in pending entries that are observed by the SBI implementation or the NACL hardware. This leads to...

Linux Kernel Security Vulnerabilities

The Linux kernel version 6.6 contains security vulnerabilities. These vulnerabilities stem from a lack of synchronization in the allocbulk function of bpf when processing lists like waitingforgpttrace and freebyrcuttrace concurrently. This leads to race conditions and allows for reuse of resource...

Linux Kernel Security Vulnerabilities

The Linux kernel version 4.13 contains a security vulnerability. This vulnerability stems from the HID multitouch driver, which does not prevent the timer from being re-activated when it is removed, allowing for reuse after release...

Linux Kernel Security Vulnerabilities

The Linux kernel version 2.6.12 has a security vulnerability. This vulnerability stems from improper bounds checking of the length of RX packets in the catcrxdone function. The function does not consider the packet header offset and the remaining bytes, and accepts packets that are shorter than t...

Linux Kernel Security Vulnerabilities

The Linux kernel version 6.12 contains security vulnerabilities. These vulnerabilities stem from insufficient depth restrictions on the ownership relationship between BPF and local kptrs and Goto statements. The self-referencing local kptr types can form arbitrarily deep object chains, and the sa...

Linux Kernel Security Vulnerabilities

There are security vulnerabilities in Linux kernels versions 3.10.106 through 3.11, 3.12.71 through 3.13, and 3.14. These vulnerabilities stem from improper handling of transmission states, specifically those marked as SCTPUNCONFIRMED, during the update and retransmission process via the...

Linux Kernel Security Vulnerabilities

Versions of the Linux kernel from 6.18.34 to 6.18.56, as well as 7.0.11 to 7.1 and 7.1 itself, have security vulnerabilities. These vulnerabilities stem from the fprobe processing program executing when RCU does not monitor it. The standard RCU grace period does not wait for these executions, and...

Linux Kernel Security Vulnerabilities

The Linux kernel version 5.16 contains a security vulnerability. This vulnerability arises from the fact that SORESERVEMEM is not limited to TCP sockets, and no upper limit is set. This may lead to concurrent operations on UDP sockets damaging skforwardalloc and memcg accounting, or causing...

Linux Kernel Security Vulnerabilities

The Linux kernel version 6.0 contains security vulnerabilities. These vulnerabilities arise from the fact that the IRQ is not stopped before terminating the work queue, resulting in the possibility of the IRQ still scheduling plat-work into the queue when the remove function removes the queue...

Linux Kernel Security Vulnerabilities

The Linux kernel version 6.19 contains security vulnerabilities. These vulnerabilities stem from binderfs’ binderadddevice function, which accesses freed objects after simpledonecreating releases the parent directory lock and dentry references. Concurrently, unlinkat can delete the new device ent...

Linux Kernel Security Vulnerabilities

The Linux kernel version 2.6.30 contains a security vulnerability. This vulnerability arises from the max3100 serial port driver returning values prematurely when the system is suspended. The polling timer is not closed before releasing the port. When the SPI device unlinks before it recovers, it...

Linux Kernel Security Vulnerabilities

The Linux kernel version 5.11 contains security vulnerabilities. One of these vulnerabilities arises from sockmapalloc, which does not reject entries greater than INTMAX. Additionally, sockmapfree uses a signed int to iterate through the sks array, leading to integer overflows and potential...

Linux Kernel Security Vulnerabilities

Versions of the Linux kernel prior to 7.2.9 have a security vulnerability. This vulnerability arises from the BPF verifier failing to reject the transfer of the PTRTOPACKET pointer to procedures that may modify data packets, potentially causing the data packet memory area to become invalid...

Linux Kernel Security Vulnerabilities

The Linux kernel version 5.8 contains a security vulnerability. This vulnerability stems from the bpfsock context code, which fails to ensure that the width of the read value is consistent with the assumptions of the verifier when reading the rxqueuemapping field. As a result, the values of runti...

Linux Kernel Security Vulnerabilities

The Linux kernel version 6.18 contains a security vulnerability. This vulnerability stems from emmactxmemmap in drivers/net/ethernet/spacemit/k1emac.c, which fails to clear the written TX descriptors when fragment mapping fails. As a result, the DMA engine may access an old address that has been...

Linux Kernel Security Vulnerabilities

The Linux kernel version 6.13 contains a security vulnerability. This vulnerability arises from the fact that the UDP socket is disconnected from the quadruplet hash table, but the hash count remains retained. As a result, data packets are still processed through quadruplet lookups, which may lea...