CVE-2021-34585

In the CODESYS V2 web server prior to V1.1.9.22 crafted web server requests can trigger a parser error. Since the parser result is not checked under all conditions, a pointer dereference with an invalid address can occur. This leads to a denial of service situation...

CVE-2021-34586

In the CODESYS V2 web server prior to V1.1.9.22 crafted web server requests may cause a Null pointer dereference in the CODESYS web server and may result in a denial-of-service condition...

CVE-2021-34584

Crafted web server requests can be utilised to read partial stack or heap memory or may trigger a denial-of- service condition due to a crash in the CODESYS V2 web server prior to V1.1.9.22...

Heap overflow

Crafted web server requests may cause a heap-based buffer overflow and could therefore trigger a denial-of- service condition due to a crash in the CODESYS V2 web server prior to V1.1.9.22...

Design/Logic Flaw

Crafted web server requests can be utilised to read partial stack or heap memory or may trigger a denial-of- service condition due to a crash in the CODESYS V2 web server prior to V1.1.9.22...

Null pointer dereference

In the CODESYS V2 web server prior to V1.1.9.22 crafted web server requests may cause a Null pointer dereference in the CODESYS web server and may result in a denial-of-service condition...

Out-of-bounds

A crafted request with invalid offsets may cause an out-of-bounds read or write access in CODESYS V2 Runtime Toolkit 32 Bit full and PLCWinNT prior to versions V2.4.7.56, resulting in a denial-of-service condition or local memory overwrite...

Design/Logic Flaw

In CODESYS V2 Runtime Toolkit 32 Bit full and PLCWinNT prior to versions V2.4.7.56 unauthenticated crafted invalid requests may result in several denial-of-service conditions. Running PLC programs may be stopped, memory may be leaked, or further communication clients may be blocked from accessing...

Race condition

A crafted request may cause a read access to an uninitialized pointer in CODESYS V2 Runtime Toolkit 32 Bit full and PLCWinNT prior to versions V2.4.7.56, resulting in a denial-of-service condition...

CVE-2021-34596 CODESYS V2 runtime: Access of Uninitialized Pointer may result in denial-of-service

A crafted request may cause a read access to an uninitialized pointer in CODESYS V2 Runtime Toolkit 32 Bit full and PLCWinNT prior to versions V2.4.7.56, resulting in a denial-of-service condition...

CVE-2021-34596

CVE-2021-34596 affects CODESYS V2 Runtime Toolkit 32 Bit full and PLCWinNT before version 2.4.7.56. A crafted request may trigger a read access to an uninitialized pointer, causing a denial-of-service condition. No exploitation details are provided in the documents. Remediation: update to V2.4.7....

CVE-2021-34595 CODESYS V2 runtime: out-of-bounds read or write access may result in denial-of-service

A crafted request with invalid offsets may cause an out-of-bounds read or write access in CODESYS V2 Runtime Toolkit 32 Bit full and PLCWinNT prior to versions V2.4.7.56, resulting in a denial-of-service condition or local memory overwrite...

CVE-2021-34595

The CVE-2021-34595 issue affects CODESYS V2 Runtime Toolkit 32 Bit full and PLCWinNT versions prior to V2.4.7.56. A crafted request with invalid offsets can trigger an out-of-bounds read or write, leading to a denial-of-service condition or local memory overwrite. The issue’s impact is reflected ...

CVE-2021-34593 CODESYS V2 runtime: unauthenticated invalid requests may result in denial-of-service

In CODESYS V2 Runtime Toolkit 32 Bit full and PLCWinNT prior to versions V2.4.7.56 unauthenticated crafted invalid requests may result in several denial-of-service conditions. Running PLC programs may be stopped, memory may be leaked, or further communication clients may be blocked from accessing...

CVE-2021-34586

CVE-2021-34586 affects the CODESYS V2 web server prior to version 1.1.9.22. Crafted web server requests can trigger a null pointer dereference in the CODESYS web server, potentially causing a denial-of-service. Affected products: CODESYS V2 web server (versions prior to 1.1.9.22). Root cause: nul...

CVE-2021-34586 CODESYS V2 web server: crafted requests could trigger a null pointer dereference (DoS)

In the CODESYS V2 web server prior to V1.1.9.22 crafted web server requests may cause a Null pointer dereference in the CODESYS web server and may result in a denial-of-service condition...

CVE-2021-34585 CODESYS V2 web server: crafted requests could trigger a pointer dereference with an invalid address (DoS)

In the CODESYS V2 web server prior to V1.1.9.22 crafted web server requests can trigger a parser error. Since the parser result is not checked under all conditions, a pointer dereference with an invalid address can occur. This leads to a denial of service situation...

CVE-2021-34584

The CVE-2021-34584 issue affects CODESYS V2 web server prior to version 1.1.9.22. Crafted web server requests can read partial stack or heap memory and may trigger a denial-of-service crash. The vulnerability is tied to the V2 web server, and remediation is to upgrade to V1.1.9.22 or later. No ex...

CVE-2021-34584 CODESYS V2 web server: crafted requests could trigger a buffer over-read (DoS)

Crafted web server requests can be utilised to read partial stack or heap memory or may trigger a denial-of- service condition due to a crash in the CODESYS V2 web server prior to V1.1.9.22...

CVE-2021-34583 CODESYS V2 web server: crafted requests could trigger a heap-based buffer overflow (DoS)

Crafted web server requests may cause a heap-based buffer overflow and could therefore trigger a denial-of- service condition due to a crash in the CODESYS V2 web server prior to V1.1.9.22...