Total
455 CVE
| CVE | Vendors | Products | Updated | CVSS v2 | CVSS v3 |
|---|---|---|---|---|---|
| CVE-2021-47465 | 1 Linux | 1 Linux Kernel | 2026-06-17 | N/A | 5.5 MEDIUM |
| In the Linux kernel, the following vulnerability has been resolved: KVM: PPC: Book3S HV: Fix stack handling in idle_kvm_start_guest() In commit 10d91611f426 ("powerpc/64s: Reimplement book3s idle code in C") kvm_start_guest() became idle_kvm_start_guest(). The old code allocated a stack frame on the emergency stack, but didn't use the frame to store anything, and also didn't store anything in its caller's frame. idle_kvm_start_guest() on the other hand is written more like a normal C function, it creates a frame on entry, and also stores CR/LR into its callers frame (per the ABI). The problem is that there is no caller frame on the emergency stack. The emergency stack for a given CPU is allocated with: paca_ptrs[i]->emergency_sp = alloc_stack(limit, i) + THREAD_SIZE; So emergency_sp actually points to the first address above the emergency stack allocation for a given CPU, we must not store above it without first decrementing it to create a frame. This is different to the regular kernel stack, paca->kstack, which is initialised to point at an initial frame that is ready to use. idle_kvm_start_guest() stores the backchain, CR and LR all of which write outside the allocation for the emergency stack. It then creates a stack frame and saves the non-volatile registers. Unfortunately the frame it creates is not large enough to fit the non-volatiles, and so the saving of the non-volatile registers also writes outside the emergency stack allocation. The end result is that we corrupt whatever is at 0-24 bytes, and 112-248 bytes above the emergency stack allocation. In practice this has gone unnoticed because the memory immediately above the emergency stack happens to be used for other stack allocations, either another CPUs mc_emergency_sp or an IRQ stack. See the order of calls to irqstack_early_init() and emergency_stack_init(). The low addresses of another stack are the top of that stack, and so are only used if that stack is under extreme pressue, which essentially never happens in practice - and if it did there's a high likelyhood we'd crash due to that stack overflowing. Still, we shouldn't be corrupting someone else's stack, and it is purely luck that we aren't corrupting something else. To fix it we save CR/LR into the caller's frame using the existing r1 on entry, we then create a SWITCH_FRAME_SIZE frame (which has space for pt_regs) on the emergency stack with the backchain pointing to the existing stack, and then finally we switch to the new frame on the emergency stack. | |||||
| CVE-2021-46509 | 1 Cesanta | 1 Mjs | 2026-06-17 | 6.8 MEDIUM | 7.8 HIGH |
| Cesanta MJS v2.20.0 was discovered to contain a stack overflow via snquote at mjs/src/mjs_json.c. | |||||
| CVE-2021-46507 | 1 Jsish | 1 Jsish | 2026-06-17 | 4.3 MEDIUM | 5.5 MEDIUM |
| Jsish v3.5.0 was discovered to contain a stack overflow via Jsi_LogMsg at src/jsiUtils.c. | |||||
| CVE-2021-46505 | 1 Jsish | 1 Jsish | 2026-06-17 | 4.3 MEDIUM | 5.5 MEDIUM |
| Jsish v3.5.0 was discovered to contain a stack overflow via /usr/lib/x86_64-linux-gnu/libasan.so.4+0x5b1e5. | |||||
| CVE-2021-46195 | 1 Gnu | 1 Gcc | 2026-06-17 | 4.3 MEDIUM | 5.5 MEDIUM |
| GCC v12.0 was discovered to contain an uncontrolled recursion via the component libiberty/rust-demangle.c. This vulnerability allows attackers to cause a Denial of Service (DoS) by consuming excessive CPU and memory resources. | |||||
| CVE-2021-45832 | 1 Hdfgroup | 1 Hdf5 | 2026-06-17 | 4.3 MEDIUM | 5.5 MEDIUM |
| A Stack-based Buffer Overflow Vulnerability exists in HDF5 1.13.1-1 at at hdf5/src/H5Eint.c, which causes a Denial of Service (context-dependent). | |||||
| CVE-2021-45105 | 5 Apache, Debian, Netapp and 2 more | 121 Log4j, Debian Linux, Cloud Manager and 118 more | 2026-06-17 | 4.3 MEDIUM | 5.9 MEDIUM |
| Apache Log4j2 versions 2.0-alpha1 through 2.16.0 (excluding 2.12.3 and 2.3.1) did not protect from uncontrolled recursion from self-referential lookups. This allows an attacker with control over Thread Context Map data to cause a denial of service when a crafted string is interpreted. This issue was fixed in Log4j 2.17.0, 2.12.3, and 2.3.1. | |||||
| CVE-2021-43519 | 2 Fedoraproject, Lua | 2 Fedora, Lua | 2026-06-17 | 4.3 MEDIUM | 5.5 MEDIUM |
| Stack overflow in lua_resume of ldo.c in Lua Interpreter 5.1.0~5.4.4 allows attackers to perform a Denial of Service via a crafted script file. | |||||
| CVE-2021-42717 | 5 Debian, F5, Oracle and 2 more | 6 Debian Linux, Nginx Modsecurity Waf, Http Server and 3 more | 2026-06-17 | 5.0 MEDIUM | 7.5 HIGH |
| ModSecurity 3.x through 3.0.5 mishandles excessively nested JSON objects. Crafted JSON objects with nesting tens-of-thousands deep could result in the web server being unable to service legitimate requests. Even a moderately large (e.g., 300KB) HTTP request can occupy one of the limited NGINX worker processes for minutes and consume almost all of the available CPU on the machine. Modsecurity 2 is similarly vulnerable: the affected versions include 2.8.0 through 2.9.4. | |||||
| CVE-2021-42697 | 1 Akka | 1 Http Server | 2026-06-17 | 5.0 MEDIUM | 7.5 HIGH |
| Akka HTTP 10.1.x before 10.1.15 and 10.2.x before 10.2.7 can encounter stack exhaustion while parsing HTTP headers, which allows a remote attacker to conduct a Denial of Service attack by sending a User-Agent header with deeply nested comments. | |||||
| CVE-2021-41752 | 1 Jerryscript | 1 Jerryscript | 2026-06-17 | 7.5 HIGH | 9.8 CRITICAL |
| Stack overflow vulnerability in Jerryscript before commit e1ce7dd7271288be8c0c8136eea9107df73a8ce2 on Oct 20, 2021 due to an unbounded recursive call to the new opt() function. | |||||
| CVE-2021-41737 | 2026-06-17 | N/A | 7.5 HIGH | ||
| In Faust 2.23.1, an input file with the lines "// r visualisation tCst" and "//process = +: L: abM-^Q;" and "process = route(3333333333333333333,2,1,2,3,1) : *;" leads to stack consumption. | |||||
| CVE-2021-3997 | 3 Fedoraproject, Redhat, Systemd Project | 3 Fedora, Enterprise Linux, Systemd | 2026-06-17 | N/A | 5.5 MEDIUM |
| A flaw was found in systemd. An uncontrolled recursion in systemd-tmpfiles may lead to a denial of service at boot time when too many nested directories are created in /tmp. | |||||
| CVE-2021-3530 | 2 Gnu, Netapp | 2 Binutils, Ontap Select Deploy Administration Utility | 2026-06-17 | 5.0 MEDIUM | 7.5 HIGH |
| A flaw was discovered in GNU libiberty within demangle_path() in rust-demangle.c, as distributed in GNU Binutils version 2.36. A crafted symbol can cause stack memory to be exhausted leading to a crash. | |||||
| CVE-2021-39929 | 3 Debian, Fedoraproject, Wireshark | 3 Debian Linux, Fedora, Wireshark | 2026-06-17 | 5.0 MEDIUM | 7.5 HIGH |
| Uncontrolled Recursion in the Bluetooth DHT dissector in Wireshark 3.4.0 to 3.4.9 and 3.2.0 to 3.2.17 allows denial of service via packet injection or crafted capture file | |||||
| CVE-2021-39257 | 2 Debian, Tuxera | 2 Debian Linux, Ntfs-3g | 2026-06-17 | 4.7 MEDIUM | 5.5 MEDIUM |
| A crafted NTFS image with an unallocated bitmap can lead to a endless recursive function call chain (starting from ntfs_attr_pwrite), causing stack consumption in NTFS-3G < 2021.8.22. | |||||
| CVE-2021-38569 | 1 Foxitsoftware | 2 Foxit Reader, Phantompdf | 2026-06-17 | 5.0 MEDIUM | 7.5 HIGH |
| An issue was discovered in Foxit Reader and PhantomPDF before 10.1.4. It allows stack consumption via recursive function calls during the handling of XFA forms or link objects. | |||||
| CVE-2021-38566 | 1 Foxitsoftware | 2 Pdf Editor, Pdf Reader | 2026-06-17 | 5.0 MEDIUM | 7.5 HIGH |
| An issue was discovered in Foxit PDF Reader before 11.0.1 and PDF Editor before 11.0.1. It allows stack consumption during recursive processing of embedded XML nodes. | |||||
| CVE-2021-36773 | 4 Debian, Sciruby, Ublockorigin and 1 more | 4 Debian Linux, Nmatrix, Ublock Origin and 1 more | 2026-06-17 | 5.0 MEDIUM | 7.5 HIGH |
| uBlock Origin before 1.36.2 and nMatrix before 4.4.9 support an arbitrary depth of parameter nesting for strict blocking, which allows crafted web sites to cause a denial of service (unbounded recursion that can trigger memory consumption and a loss of all blocking functionality). | |||||
| CVE-2021-36395 | 1 Moodle | 1 Moodle | 2026-06-17 | N/A | 7.5 HIGH |
| In Moodle, the file repository's URL parsing required additional recursion handling to mitigate the risk of recursion denial of service. | |||||