🚨 CVE-2021-3782
An internal reference count is held on the buffer pool, incremented every time a new buffer is created from the pool. The reference count is maintained as an int; on LP64 systems this can cause the reference count to overflow if the client creates a large number of wl_shm buffer objects, or if it can coerce the server to create a large number of external references to the buffer storage. With the reference count overflowing, a use-after-free can be constructed on the wl_shm_pool tracking structure, where values may be incremented or decremented; it may also be possible to construct a limited oracle to leak 4 bytes of server-side memory to the attacking client at a time.
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An internal reference count is held on the buffer pool, incremented every time a new buffer is created from the pool. The reference count is maintained as an int; on LP64 systems this can cause the reference count to overflow if the client creates a large number of wl_shm buffer objects, or if it can coerce the server to create a large number of external references to the buffer storage. With the reference count overflowing, a use-after-free can be constructed on the wl_shm_pool tracking structure, where values may be incremented or decremented; it may also be possible to construct a limited oracle to leak 4 bytes of server-side memory to the attacking client at a time.
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GitLab
Reference count overflow in shm leads to use-after-free (#224) · Issues · wayland / wayland · GitLab
The shared memory code uses an int for the reference count. On 64-bit systems, a malicous client can create so many references that the int overflows. This is...
🚨 CVE-2021-45035
Velneo vClient on its 28.1.3 version, does not correctly check the certificate of authenticity by default. This could allow an attacker that has access to the network to perform a MITM attack in order to obtain the user´s credentials.
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Velneo vClient on its 28.1.3 version, does not correctly check the certificate of authenticity by default. This could allow an attacker that has access to the network to perform a MITM attack in order to obtain the user´s credentials.
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INCIBE-CERT
Velneo vClient Improper authentication
INCIBE has coordinated the publication of a vulnerability in Velneo vClient, which has been discovered by Jesús Ródenas Huerta 'Marmeus'. CVE-2021-45035 has been assigned to this vulnerability. A
🚨 CVE-2022-2025
an attacker with knowledge of user/pass of Grandstream GSD3710 in its 1.0.11.13 version, could overflow the stack since it doesn't check the param length before use the strcopy instruction. The explotation of this vulnerability may lead an attacker to execute a shell with full access.
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an attacker with knowledge of user/pass of Grandstream GSD3710 in its 1.0.11.13 version, could overflow the stack since it doesn't check the param length before use the strcopy instruction. The explotation of this vulnerability may lead an attacker to execute a shell with full access.
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INCIBE-CERT
Buffer overflow vulnerabilities in Grandstream GSD3710
INCIBE has coordinated the publication of 2 vulnerabilities in Grandstream GSD3710, with the internal code INCIBE-2022-0925, which have been discovered by José Luis Verdeguer Navarro. These
🚨 CVE-2022-2070
In Grandstream GSD3710 in its 1.0.11.13 version, it's possible to overflow the stack since it doesn't check the param length before using the sscanf instruction. Because of that, an attacker could create a socket and connect with a remote IP:port by opening a shell and getting full access to the system. The exploit affects daemons dbmng and logsrv that are running on ports 8000 and 8001 by default.
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In Grandstream GSD3710 in its 1.0.11.13 version, it's possible to overflow the stack since it doesn't check the param length before using the sscanf instruction. Because of that, an attacker could create a socket and connect with a remote IP:port by opening a shell and getting full access to the system. The exploit affects daemons dbmng and logsrv that are running on ports 8000 and 8001 by default.
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INCIBE-CERT
Buffer overflow vulnerabilities in Grandstream GSD3710
INCIBE has coordinated the publication of 2 vulnerabilities in Grandstream GSD3710, with the internal code INCIBE-2022-0925, which have been discovered by José Luis Verdeguer Navarro. These
🚨 CVE-2022-2973
MZ Automation's libIEC61850 (versions 1.4 and prior; version 1.5 prior to commit a3b04b7bc4872a5a39e5de3fdc5fbde52c09e10e) uses a NULL pointer in certain situations. which could allow an attacker to crash the server.
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MZ Automation's libIEC61850 (versions 1.4 and prior; version 1.5 prior to commit a3b04b7bc4872a5a39e5de3fdc5fbde52c09e10e) uses a NULL pointer in certain situations. which could allow an attacker to crash the server.
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🚨 CVE-2022-2972
MZ Automation's libIEC61850 (versions 1.4 and prior; version 1.5 prior to commit a3b04b7bc4872a5a39e5de3fdc5fbde52c09e10e) is vulnerable to a stack-based buffer overflow, which could allow an attacker to crash the device or remotely execute arbitrary code.
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MZ Automation's libIEC61850 (versions 1.4 and prior; version 1.5 prior to commit a3b04b7bc4872a5a39e5de3fdc5fbde52c09e10e) is vulnerable to a stack-based buffer overflow, which could allow an attacker to crash the device or remotely execute arbitrary code.
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🚨 CVE-2022-2971
MZ Automation's libIEC61850 (versions 1.4 and prior; version 1.5 prior to commit a3b04b7bc4872a5a39e5de3fdc5fbde52c09e10e) accesses a resource using an incompatible type, which could allow an attacker to crash the server with a malicious payload.
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MZ Automation's libIEC61850 (versions 1.4 and prior; version 1.5 prior to commit a3b04b7bc4872a5a39e5de3fdc5fbde52c09e10e) accesses a resource using an incompatible type, which could allow an attacker to crash the server with a malicious payload.
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🚨 CVE-2022-2970
MZ Automation's libIEC61850 (versions 1.4 and prior; version 1.5 prior to commit a3b04b7bc4872a5a39e5de3fdc5fbde52c09e10e) does not sanitize input before memcpy is used, which could allow an attacker to crash the device or remotely execute arbitrary code.
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MZ Automation's libIEC61850 (versions 1.4 and prior; version 1.5 prior to commit a3b04b7bc4872a5a39e5de3fdc5fbde52c09e10e) does not sanitize input before memcpy is used, which could allow an attacker to crash the device or remotely execute arbitrary code.
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🚨 CVE-2022-35097
SWFTools commit 772e55a2 was discovered to contain a segmentation violation via FoFiTrueType::writeTTF at /xpdf/FoFiTrueType.cc.
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SWFTools commit 772e55a2 was discovered to contain a segmentation violation via FoFiTrueType::writeTTF at /xpdf/FoFiTrueType.cc.
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GitHub
bug found in swftools-pdf2swf · Issue #182 · swftools/swftools
Hi, I currently learn to use fuzz tech to detect bugs and I found something in this repo. in order to reproduce the crash info, please attach ASAN when you compile this repo. heap buffer overflow r...
🚨 CVE-2022-35096
SWFTools commit 772e55a2 was discovered to contain a heap-buffer overflow via draw_stroke at /gfxpoly/stroke.c.
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SWFTools commit 772e55a2 was discovered to contain a heap-buffer overflow via draw_stroke at /gfxpoly/stroke.c.
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GitHub
bug found in swftools-pdf2swf · Issue #182 · swftools/swftools
Hi, I currently learn to use fuzz tech to detect bugs and I found something in this repo. in order to reproduce the crash info, please attach ASAN when you compile this repo. heap buffer overflow r...
🚨 CVE-2022-35092
SWFTools commit 772e55a2 was discovered to contain a segmentation violation via convert_gfxline at /gfxpoly/convert.c.
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SWFTools commit 772e55a2 was discovered to contain a segmentation violation via convert_gfxline at /gfxpoly/convert.c.
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GitHub
bug found in swftools-pdf2swf · Issue #182 · swftools/swftools
Hi, I currently learn to use fuzz tech to detect bugs and I found something in this repo. in order to reproduce the crash info, please attach ASAN when you compile this repo. heap buffer overflow r...
🚨 CVE-2022-35098
SWFTools commit 772e55a2 was discovered to contain a heap-buffer overflow via GfxICCBasedColorSpace::getDefaultColor(GfxColor*) at /xpdf/GfxState.cc.
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SWFTools commit 772e55a2 was discovered to contain a heap-buffer overflow via GfxICCBasedColorSpace::getDefaultColor(GfxColor*) at /xpdf/GfxState.cc.
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GitHub
bug found in swftools-pdf2swf · Issue #182 · swftools/swftools
Hi, I currently learn to use fuzz tech to detect bugs and I found something in this repo. in order to reproduce the crash info, please attach ASAN when you compile this repo. heap buffer overflow r...
🚨 CVE-2022-35099
SWFTools commit 772e55a2 was discovered to contain a stack overflow via ImageStream::getPixel(unsigned char*) at /xpdf/Stream.cc.
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SWFTools commit 772e55a2 was discovered to contain a stack overflow via ImageStream::getPixel(unsigned char*) at /xpdf/Stream.cc.
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GitHub
Poc/CVE-2022-35099.md at main · Cvjark/Poc
记录自己使用 fuzz 发现的漏洞,包括产品 version、reproduce 步骤、威胁 rank。也自觉发现这些 POC 并不是重点,可能往后有进一步分析的必要,因此在此记录。 - Poc/CVE-2022-35099.md at main · Cvjark/Poc
🚨 CVE-2022-35095
SWFTools commit 772e55a2 was discovered to contain a segmentation violation via InfoOutputDev::type3D1 at /pdf/InfoOutputDev.cc.
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SWFTools commit 772e55a2 was discovered to contain a segmentation violation via InfoOutputDev::type3D1 at /pdf/InfoOutputDev.cc.
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🚨 CVE-2022-40101
Tenda i9 v1.0.0.8(3828) was discovered to contain a buffer overflow via the formWifiMacFilterSet function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted string.
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Tenda i9 v1.0.0.8(3828) was discovered to contain a buffer overflow via the formWifiMacFilterSet function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted string.
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🚨 CVE-2022-36338
An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. An SMM callout vulnerability in the SMM driver FwBlockServiceSmm, creating SMM, leads to arbitrary code execution. An attacker can replace the pointer to the UEFI boot service GetVariable with a pointer to malware, and then generate a software SMI.
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An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. An SMM callout vulnerability in the SMM driver FwBlockServiceSmm, creating SMM, leads to arbitrary code execution. An attacker can replace the pointer to the UEFI boot service GetVariable with a pointer to malware, and then generate a software SMI.
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Insyde Software
Security Pledge
Product security is a top priority and one that we continue to improve upon continuously.
🚨 CVE-2022-3298
Allocation of Resources Without Limits or Throttling in GitHub repository ikus060/rdiffweb prior to 2.4.8.
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Allocation of Resources Without Limits or Throttling in GitHub repository ikus060/rdiffweb prior to 2.4.8.
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🚨 CVE-2021-32802
Nextcloud server is an open source, self hosted personal cloud. Nextcloud supports rendering image previews for user provided file content. For some image types, the Nextcloud server was invoking a third-party library that wasn't suited for untrusted user-supplied content. There are several security concerns with passing user-generated content to this library, such as Server-Side-Request-Forgery, file disclosure or potentially executing code on the system. The risk depends on your system configuration and the installed library version. It is recommended that the Nextcloud Server is upgraded to 20.0.12, 21.0.4 or 22.1.0. These versions do not use this library anymore. As a workaround users may disable previews by setting `enable_previews` to `false` in `config.php`.
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Nextcloud server is an open source, self hosted personal cloud. Nextcloud supports rendering image previews for user provided file content. For some image types, the Nextcloud server was invoking a third-party library that wasn't suited for untrusted user-supplied content. There are several security concerns with passing user-generated content to this library, such as Server-Side-Request-Forgery, file disclosure or potentially executing code on the system. The risk depends on your system configuration and the installed library version. It is recommended that the Nextcloud Server is upgraded to 20.0.12, 21.0.4 or 22.1.0. These versions do not use this library anymore. As a workaround users may disable previews by setting `enable_previews` to `false` in `config.php`.
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GitHub
Preview generation used third-party library not suited for user-generated content
### Impact
Nextcloud supports rendering image previews for user provided file content. For some image types, the Nextcloud server was invoking a third-party library that wasn't suited for untr...
Nextcloud supports rendering image previews for user provided file content. For some image types, the Nextcloud server was invoking a third-party library that wasn't suited for untr...
🚨 CVE-2020-8229
A memory leak in the OCUtil.dll library used by Nextcloud Desktop Client 2.6.4 can lead to a DoS against the host system.
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A memory leak in the OCUtil.dll library used by Nextcloud Desktop Client 2.6.4 can lead to a DoS against the host system.
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HackerOne
Nextcloud disclosed on HackerOne: Memory Leak in OCUtil.dll library...
The function IsChildFile(const wchar_t* rootFolder, const wchar_t* file) in FileUtil.cpp allocates memory on line 42 and fails to free it.
The following PoC code can provide evidence. The code and...
The following PoC code can provide evidence. The code and...
🚨 CVE-2020-8227
Missing sanitization of a server response in Nextcloud Desktop Client 2.6.4 for Linux allowed a malicious Nextcloud Server to store files outside of the dedicated sync directory.
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Missing sanitization of a server response in Nextcloud Desktop Client 2.6.4 for Linux allowed a malicious Nextcloud Server to store files outside of the dedicated sync directory.
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HackerOne
Nextcloud disclosed on HackerOne: Linux client is vulnerable to...
## Summary
The Nextcloud Linux client is vulnerable to directory traversal when downloading files from a Nextcloud server. A malicious Nextcloud administrator can exploit the vulnerability to...
The Nextcloud Linux client is vulnerable to directory traversal when downloading files from a Nextcloud server. A malicious Nextcloud administrator can exploit the vulnerability to...
🚨 CVE-2017-0890
Nextcloud Server before 11.0.3 is vulnerable to an inadequate escaping leading to a XSS vulnerability in the search module. To be exploitable a user has to write or paste malicious content into the search dialogue.
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Nextcloud Server before 11.0.3 is vulnerable to an inadequate escaping leading to a XSS vulnerability in the search module. To be exploitable a user has to write or paste malicious content into the search dialogue.
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