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Security Vulnerabilities Related To CWE-788

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# CVE ID CWE ID # of Exploits Vulnerability Type(s) Publish Date Update Date Score Gained Access Level Access Complexity Authentication Conf. Integ. Avail.
1 CVE-2021-32629 788 2021-05-24 2021-06-03
4.6
None Local Low Not required Partial Partial Partial
Cranelift is an open-source code generator maintained by Bytecode Alliance. It translates a target-independent intermediate representation into executable machine code. There is a bug in 0.73 of the Cranelift x64 backend that can create a scenario that could result in a potential sandbox escape in a Wasm program. This bug was introduced in the new backend on 2020-09-08 and first included in a release on 2020-09-30, but the new backend was not the default prior to 0.73. The recently-released version 0.73 with default settings, and prior versions with an explicit build flag to select the new backend, are vulnerable. The bug in question performs a sign-extend instead of a zero-extend on a value loaded from the stack, under a specific set of circumstances. If those circumstances occur, the bug could allow access to memory addresses upto 2GiB before the start of the Wasm program heap. If the heap bound is larger than 2GiB, then it would be possible to read memory from a computable range dependent on the size of the heaps bound. The impact of this bug is highly dependent on heap implementation, specifically: * if the heap has bounds checks, and * does not rely exclusively on guard pages, and * the heap bound is 2GiB or smaller * then this bug cannot be used to reach memory from another Wasm program heap. The impact of the vulnerability is mitigated if there is no memory mapped in the range accessible using this bug, for example, if there is a 2 GiB guard region before the Wasm program heap. The bug in question performs a sign-extend instead of a zero-extend on a value loaded from the stack, when the register allocator reloads a spilled integer value narrower than 64 bits. This interacts poorly with another optimization: the instruction selector elides a 32-to-64-bit zero-extend operator when we know that an instruction producing a 32-bit value actually zeros the upper 32 bits of its destination register. Hence, we rely on these zeroed bits, but the type of the value is still i32, and the spill/reload reconstitutes those bits as the sign extension of the i32’s MSB. The issue would thus occur when: * An i32 value in a Wasm program is greater than or equal to 0x8000_0000; * The value is spilled and reloaded by the register allocator due to high register pressure in the program between the value’s definition and its use; * The value is produced by an instruction that we know to be “special� in that it zeroes the upper 32 bits of its destination: add, sub, mul, and, or; * The value is then zero-extended to 64 bits in the Wasm program; * The resulting 64-bit value is used. Under these circumstances there is a potential sandbox escape when the i32 value is a pointer. The usual code emitted for heap accesses zero-extends the Wasm heap address, adds it to a 64-bit heap base, and accesses the resulting address. If the zero-extend becomes a sign-extend, the program could reach backward and access memory up to 2GiB before the start of its heap. In addition to assessing the nature of the code generation bug in Cranelift, we have also determined that under specific circumstances, both Lucet and Wasmtime using this version of Cranelift may be exploitable. See referenced GitHub Advisory for more details.
2 CVE-2021-27384 788 Exec Code 2021-05-12 2021-05-21
7.5
None Remote Low Not required Partial Partial Partial
SmartVNC has an out-of-bounds memory access vulnerability in the device layout handler represented by a binary data stream on client side, which could result in code execution on the SIMATIC HMIs/WinCC Products SIMATIC HMI Comfort Outdoor Panels 7’ and 15’ (incl. SIPLUS variants), SIMATIC HMI Comfort Panels 4’to 22’ (incl. SIPLUS variants), SIMATIC HMI KTP Mobile Panels KTP400F, KTP700, KTP700F, KTP900, and KTP900F, SIMATIC WinCC Runtime Advanced (All versions prior to v16 Update 4).
3 CVE-2021-25661 788 2021-05-12 2021-05-21
5.0
None Remote Low Not required None None Partial
SmartVNC has an out-of-bounds memory access vulnerability that could be triggered on the client side when sending data from the server, which could result in a denial-of-service condition on the SIMATIC HMIs/WinCC Products SIMATIC HMI Comfort Outdoor Panels 7’ and 15’ (incl. SIPLUS variants), SIMATIC HMI Comfort Panels 4’to 22’ (incl. SIPLUS variants), SIMATIC HMI KTP Mobile Panels KTP400F, KTP700, KTP700F, KTP900, and KTP900F, SIMATIC WinCC Runtime Advanced (All versions prior to v16 Update 4).
4 CVE-2021-21093 788 Exec Code Mem. Corr. 2021-04-15 2021-04-20
6.8
None Remote Medium Not required Partial Partial Partial
Adobe Bridge versions 10.1.1 (and earlier) and 11.0.1 (and earlier) are affected by a memory corruption vulnerability when parsing a specially crafted file. An unauthenticated attacker could leverage this vulnerability to achieve arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
5 CVE-2021-21092 788 Exec Code Mem. Corr. 2021-04-15 2021-04-20
6.8
None Remote Medium Not required Partial Partial Partial
Adobe Bridge versions 10.1.1 (and earlier) and 11.0.1 (and earlier) are affected by a memory corruption vulnerability when parsing a specially crafted file. An unauthenticated attacker could leverage this vulnerability to achieve arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
6 CVE-2021-21082 788 Exec Code Mem. Corr. 2021-03-12 2021-06-28
6.8
None Remote Medium Not required Partial Partial Partial
Adobe Photoshop versions 21.2.5 (and earlier) and 22.2 (and earlier) are affected by a Memory Corruption vulnerability when parsing a specially crafted file. An unauthenticated attacker could leverage this vulnerability to achieve arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
7 CVE-2021-21071 788 Exec Code Mem. Corr. 2021-03-12 2021-03-16
6.8
None Remote Medium Not required Partial Partial Partial
Adobe Animate version 21.0.3 (and earlier) is affected by a Memory Corruption vulnerability. An unauthenticated attacker could leverage this vulnerability to achieve arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
8 CVE-2021-21063 788 Exec Code Mem. Corr. 2021-02-11 2021-02-17
9.3
None Remote Medium Not required Complete Complete Complete
Acrobat Reader DC versions versions 2020.013.20074 (and earlier), 2020.001.30018 (and earlier) and 2017.011.30188 (and earlier) are affected by a Memory corruption vulnerability when parsing a specially crafted PDF file. An unauthenticated attacker could leverage this vulnerability to achieve arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
9 CVE-2021-21062 788 Exec Code Mem. Corr. 2021-02-11 2021-02-17
9.3
None Remote Medium Not required Complete Complete Complete
Acrobat Reader DC versions versions 2020.013.20074 (and earlier), 2020.001.30018 (and earlier) and 2017.011.30188 (and earlier) are affected by a Memory corruption vulnerability when parsing a specially crafted PDF file. An unauthenticated attacker could leverage this vulnerability to achieve arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
10 CVE-2021-21059 788 Exec Code Mem. Corr. 2021-02-11 2021-02-17
9.3
None Remote Medium Not required Complete Complete Complete
Acrobat Reader DC versions versions 2020.013.20074 (and earlier), 2020.001.30018 (and earlier) and 2017.011.30188 (and earlier) are affected by a Memory corruption vulnerability when parsing a specially crafted PDF file. An unauthenticated attacker could leverage this vulnerability to achieve arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
11 CVE-2021-21058 788 Exec Code Mem. Corr. 2021-02-11 2021-02-17
9.3
None Remote Medium Not required Complete Complete Complete
Acrobat Reader DC versions versions 2020.013.20074 (and earlier), 2020.001.30018 (and earlier) and 2017.011.30188 (and earlier) are affected by a Memory corruption vulnerability when parsing a specially crafted PDF file. An unauthenticated attacker could leverage this vulnerability to achieve arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
12 CVE-2021-21048 788 Exec Code Mem. Corr. 2021-02-11 2021-02-17
9.3
None Remote Medium Not required Complete Complete Complete
Adobe Photoshop versions 21.2.4 (and earlier) and 22.1.1 (and earlier) are affected by a Memory Corruption vulnerability when parsing a specially crafted file. An unauthenticated attacker could leverage this vulnerability to achieve arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file
13 CVE-2021-21046 788 Mem. Corr. 2021-02-11 2021-02-14
4.3
None Remote Medium Not required None None Partial
Acrobat Reader DC versions versions 2020.013.20074 (and earlier), 2020.001.30018 (and earlier) and 2017.011.30188 (and earlier) are affected by an memory corruption vulnerability. An unauthenticated attacker could leverage this vulnerability to cause an application denial-of-service. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Total number of vulnerabilities : 13   Page : 1 (This Page)
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