A race condition was found in the Linux kernel's RxRPC network protocol, within the processing of RxRPC bundles. This issue results from the lack of proper locking when performing operations on an object. This may allow an attacker to escalate privileges and execute arbitrary code in the context of the kernel.
Expat (aka libexpat) is vulnerable to a denial of service, caused by a realloc misbehavior issue in the storeAtts function in xmlparse.c. By persuading a victim to open a specially-crafted XML content, a remote attacker could exploit this vulnerability to cause a the application to crash.
A use-after-free flaw was found in cgroup1parseparam in kernel/cgroup/cgroup-v1.c in the Linux kernel cgroup v1 parser, where a local attacker with a user privilege could cause a privilege escalation by exploiting the fsconfig syscall parameter leads to container breakout and a denial of service problem on the system.
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3b0462726e7ef281c35a7a4ae33e93ee2bc9975b
expat (libexpat) is susceptible to a software flaw that causes process interruption. When processing a large number of prefixed XML attributes on a single tag can libexpat can terminate unexpectedly due to integer overflow. The highest threat from this vulnerability is to availability, confidentiality and integrity.
A flaw was found in the x86 KVM subsystem in kvmstealtimesetpreempted in arch/x86/kvm/x86.c in the Linux kernel. Unprivileged guest users can compromise the guest kernel because TLB flush operations are mishandled in certain KVMVCPUPREEMPTED situations.
A double-free flaw was found in the Linux kernel in the emsusbstartxmit function. This flaw allows an attacker to create a memory leak and corrupt the underlying data structure by calling free more than once.
In the Linux kernel through 6.3.1, a use-after-free in Netfilter nftables when processing batch requests can be abused to perform arbitrary read and write operations on kernel memory. Unprivileged local users can obtain root privileges. This occurs because anonymous sets are mishandled.
A flaw was found in the fixed buffer registration code for iouring (iosqebufferregister in iouring/rsrc.c) in the Linux kernel that allows out-of-bounds access to physical memory beyond the end of the buffer. This flaw enables full local privilege escalation.
A flaw was found in the Linux kernel's ext4unlink function. An attacker could corrupt memory or escalate privileges when deleting a file from a recently unmounted specially crafted ext4 filesystem, including local, USB, and iSCSI.
A use-after-free vulnerability in the Linux Kernel iouring subsystem can be exploited to achieve local privilege escalation.
Both ioinstallfixedfile and its callers call fput in a file in case of an error, causing a reference underflow which leads to a use-after-free vulnerability.
We recommend upgrading past commit 9d94c04c0db024922e886c9fd429659f22f48ea4.
A memory leak in the adisupdatescanmodeburst() function in drivers/iio/imu/adisbuffer.c in the Linux kernel before 5.3.9 allows attackers to cause a denial of service (memory consumption), aka CID-9c0530e898f3.
A memory leak in the gscanopen() function in drivers/net/can/usb/gsusb.c in the Linux kernel before 5.3.11 allows attackers to cause a denial of service (memory consumption) by triggering usbsubmiturb() failures, aka CID-fb5be6a7b486.
A memory leak in the adisupdatescanmode() function in drivers/iio/imu/adisbuffer.c in the Linux kernel before 5.3.9 allows attackers to cause a denial of service (memory consumption), aka CID-ab612b1daf41.
Last updated 29 November 2024
A memory leak in the rpmsgeptdevwriteiter() function in drivers/rpmsg/rpmsgchar.c in the Linux kernel through 5.3.11 allows attackers to cause a denial of service (memory consumption) by triggering copyfromiterfull() failures, aka CID-bbe692e349e2.
A use after free vulnerability was found in preparetorelocate in fs/btrfs/relocation.c in btrfs in the Linux Kernel. This possible flaw can be triggered by calling btrfsioctlbalance() before calling btrfsioctldefrag().
In rndisqueryoid in drivers/net/wireless/rndiswlan.c in the Linux kernel through 6.1.5, there is an integer overflow in an addition.
ISC BIND is vulnerable to a denial of service, caused by an error when preparing an NSEC3 closest encloser proof. By flooding the target resolver with queries, a remote attacker could exploit this vulnerability to cause CPU exhaustion on a DNSSEC-validating resolver.
A race condition in perfeventopen() which can be exploited by an unprivileged user to gain root privileges. The bug allows to build several exploit primitives such as kernel address information leak, arbitrary execution, etc.
gzip integer overflow
A use-after-free flaw was found in the Linux kernel console driver when using the copy-paste buffer. This flaw allows a local user to crash the system.
A flaw was found in the Linux kernel. A NULL pointer dereference may occur while a slip driver is in progress to detach in sltxtimeout in drivers/net/slip/slip.c. This issue could allow an attacker to crash the system or leak internal kernel information.
A use-after-free flaw was found in r592remove in drivers/memstick/host/r592.c in media access in Linux Kernel. This flaw could allow a local attacker to crash the system at device disconnect. This vulnerability could even lead to a kernel information leak problem.
Refer: https://lore.kernel.org/lkml/CAPDyKFoV9aZObZ5GBm0U-UVeVkBNrAG-kH3BKoP4EXdYM4bw@mail.gmail.com/t/
In the Linux kernel 6.0.8, there is an out-of-bounds read in ntfsattrfind in fs/ntfs/attrib.c.
A flaw use after free found in Linux Kernel mm/mremap memory address space accounting source code. If race condition happens between rmap walk and mremap, this can result in stale TLB entries.
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=97113eb39fa7972722ff490b947d8af023e1f6a2
Impact Passing HTML containing <option> elements from untrusted sources - even after sanitizing them - to one of jQuery's DOM manipulation methods (i.e. .html(), .append(), and others) may execute untrusted code.
Patches This problem is patched in jQuery 3.5.0.
Workarounds To workaround this issue without upgrading, use DOMPurify with its SAFEFORJQUERY option to sanitize the HTML string before passing it to a jQuery method.
References https://blog.jquery.com/2020/04/10/jquery-3-5-0-released/
For more information If you have any questions or comments about this advisory, search for a relevant issue in the jQuery repo. If you don't find an answer, open a new issue.
A use-after-free flaw was found in usbsgcancel in drivers/usb/core/message.c in USB core subsystem. This flaw could allow a local attacker with special user privilege (or root) to crash the system due to a race problem in scatter-gather cancellation and transfer completion in usbsgwait. This vulnerability can even lead to a kernel information leak problem .
Here usbsgcancel() does not take any reference to the transfer and there is nothing to prevent the URBs from being deallocated while the routine is trying to use them.
Taking a reference by incrementing the transfer's io->count field while the cancellation is in progress and decrementing it afterwards can be way to address this. The transfer's URBs are not deallocated until io->complete is triggered, which happens when io->count reaches zero. ~~~ BUG: KASAN: use-after-free in atomicread include/asm-generic/atomic-instrumented.h:26 [inline] BUG: KASAN: use-after-free in usbhcdunlinkurb+0x5f/0x170 drivers/usb/core/hcd.c:1607 Read of size 4 at addr ffff888065379610 by task kworker/u4:1/27 ~~~
References: https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.6.8 https://lkml.org/lkml/2020/3/23/52
Upstream commit: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=056ad39ee9253873522f6469c3364964a322912b
An issue was discovered in the Linux kernel before 5.6.7. xdpumemreg in net/xdp/xdpumem.c has an out-of-bounds write (by a user with the CAPNETADMIN capability) because of a lack of headroom validation.
An array overflow was discovered in mt76addfragment in drivers/net/wireless/mediatek/mt76/dma.c in the Linux kernel before 5.5.10, aka CID-b102f0c522cf. An oversized packet with too many rx fragments can corrupt memory of adjacent pages.
A flaw was found in the Linux kernel’s scheduler, where it can allow attackers to cause a denial of service against non-CPU-bound applications by generating a workload that triggers unwanted scheduling slice expiration. A local attacker who can trigger a specific workload type could abuse this technique to trigger a system to be seen as degraded, and possibly trigger workload-rebalance in systems that use the slice-expiration metric as a measure of system health.