| CVE |
Vendors |
Products |
Updated |
CVSS v3.1 |
| ASN.1 strings are represented internally within OpenSSL as an ASN1_STRING structure which contains a buffer holding the string data and a field holding the buffer length. This contrasts with normal C strings which are repesented as a buffer for the string data which is terminated with a NUL (0) byte. Although not a strict requirement, ASN.1 strings that are parsed using OpenSSL's own "d2i" functions (and other similar parsing functions) as well as any string whose value has been set with the ASN1_STRING_set() function will additionally NUL terminate the byte array in the ASN1_STRING structure. However, it is possible for applications to directly construct valid ASN1_STRING structures which do not NUL terminate the byte array by directly setting the "data" and "length" fields in the ASN1_STRING array. This can also happen by using the ASN1_STRING_set0() function. Numerous OpenSSL functions that print ASN.1 data have been found to assume that the ASN1_STRING byte array will be NUL terminated, even though this is not guaranteed for strings that have been directly constructed. Where an application requests an ASN.1 structure to be printed, and where that ASN.1 structure contains ASN1_STRINGs that have been directly constructed by the application without NUL terminating the "data" field, then a read buffer overrun can occur. The same thing can also occur during name constraints processing of certificates (for example if a certificate has been directly constructed by the application instead of loading it via the OpenSSL parsing functions, and the certificate contains non NUL terminated ASN1_STRING structures). It can also occur in the X509_get1_email(), X509_REQ_get1_email() and X509_get1_ocsp() functions. If a malicious actor can cause an application to directly construct an ASN1_STRING and then process it through one of the affected OpenSSL functions then this issue could be hit. This might result in a crash (causing a Denial of Service attack). It could also result in the disclosure of private memory contents (such as private keys, or sensitive plaintext). Fixed in OpenSSL 1.1.1l (Affected 1.1.1-1.1.1k). Fixed in OpenSSL 1.0.2za (Affected 1.0.2-1.0.2y). |
| A vulnerability has been identified in SICAM SIAPP SDK (All versions < V2.1.7). An out-of-bounds write vulnerability exists in SICAM SIAPP SDK. This could allow an attacker to write data beyond the intended buffer, potentially leading to denial of service, or arbitrary code execution. |
| A vulnerability has been identified in SICAM SIAPP SDK (All versions < V2.1.7). The SICAM SIAPP SDK does not perform checks on input values potentially resulting in stack overflow. This could allow an attacker to perform code execution and denial of service. |
| A vulnerability has been identified in SICAM SIAPP SDK (All versions < V2.1.7). The affected application builds shell commands with caller-provided strings and executes them. An attacker could influence the executed command, potentially resulting in command injection and full system compromise. |
| A vulnerability has been identified in SINEC Security Monitor (All versions < V4.9.0). The affected application leaks confidential information in metadata, and files such as information on contributors and email address, on `SSM Server`. |
| Siemens SpeedStream 2624 allows remote attackers to cause a denial of service (device hang) by sending a crafted packet to the web administrative interface. |
| FTP servers can allow an attacker to connect to arbitrary ports on machines other than the FTP client, aka FTP bounce. |
| Siemens 3568i WAP mobile phones allows remote attackers to cause a denial of service (crash) via an SMS message containing unusual characters. |
| Buffer overflow in Siemens 45 series mobile phones allows remote attackers to cause a denial of service (disconnect and unavailable inbox) via a Short Message Service (SMS) message with a long image name. |
| GUI overlay vulnerability in the Java API in Siemens S55 cellular phones allows remote attackers to send unauthorized SMS messages by overlaying a confirmation message with a malicious message. |
| Siemens Speedstream Wireless Router 2624 allows local users to bypass authentication and access protected files by using the Universal Plug and Play UPnP/1.0 component. |
| The management interface for Siemens SANTIS 50 running firmware 4.2.8.0, and possibly other products including Ericsson HN294dp and Dynalink RTA300W, allows remote attackers to access the Telnet port without authentication via certain packets to the web interface that cause the interface to freeze. |
| DB4Web server, when configured to use verbose debug messages, allows remote attackers to use DB4Web as a proxy and attempt TCP connections to other systems (port scan) via a request for a URL that specifies the target IP address and port, which produces a connection status in the resulting error message. |
| OpenSSH-portable (OpenSSH) 3.6.1p1 and earlier with PAM support enabled immediately sends an error message when a user does not exist, which allows remote attackers to determine valid usernames via a timing attack. |
| ppd in Reliant Sinix allows local users to corrupt arbitrary files via a symlink attack in the /tmp/ppd.trace file. |
| Reliant Unix 5.44 and earlier allows remote attackers to cause a denial of service via an ICMP port unreachable packet, which causes Reliant to drop all connections to the source address of the packet. |
| Buffer overflow in the web administration service for the HiNet LP5100 IP-phone allows remote attackers to cause a denial of service and possibly execute arbitrary commands via a long GET request. |
| libcurl versions from 7.36.0 to before 7.64.0 is vulnerable to a heap buffer out-of-bounds read. The function handling incoming NTLM type-2 messages (`lib/vauth/ntlm.c:ntlm_decode_type2_target`) does not validate incoming data correctly and is subject to an integer overflow vulnerability. Using that overflow, a malicious or broken NTLM server could trick libcurl to accept a bad length + offset combination that would lead to a buffer read out-of-bounds. |
| libcurl versions from 7.36.0 to before 7.64.0 are vulnerable to a stack-based buffer overflow. The function creating an outgoing NTLM type-3 header (`lib/vauth/ntlm.c:Curl_auth_create_ntlm_type3_message()`), generates the request HTTP header contents based on previously received data. The check that exists to prevent the local buffer from getting overflowed is implemented wrongly (using unsigned math) and as such it does not prevent the overflow from happening. This output data can grow larger than the local buffer if very large 'nt response' data is extracted from a previous NTLMv2 header provided by the malicious or broken HTTP server. Such a 'large value' needs to be around 1000 bytes or more. The actual payload data copied to the target buffer comes from the NTLMv2 type-2 response header. |
| A vulnerability has been identified in SINEC NMS (All versions < V4.0 SP3), User Management Component (UMC) (All versions < V2.15.2.1). The affected application permits improper modification of a configuration file by a low-privileged user.
This could allow an attacker to load malicious DLLs, potentially leading to arbitrary code execution with SYSTEM privileges.(ZDI-CAN-28108) |
