Vulnerability fixed in libcurl

There is a vulnerability in the SOCKS5 proxy handshake of libcurl. A malicious party could potentially exploit the vulnerability to cause a crash in the application using libcurl. To perform this attack successfully, several conditions must be met such as using a SOCKS5 proxy, the use of a long...

Important: curl

Issue Overview: An issue was found in curl that can cause a buffer overflow in its SOCKS5 proxy communications code. When curl is using a SOCKS5 proxy and it needs to resolve a hostname to an IP address, its default behavior is to pass the hostname to the proxy and allow it to perform the...

Slackware Linux 14.0 / 14.1 / 14.2 / 15.0 / current curl Multiple Vulnerabilities (SSA:2023-284-01)

The version of curl installed on the remote host is prior to 8.4.0. It is, therefore, affected by multiple vulnerabilities as referenced in the SSA:2023-284-01 advisory. - CVE-2023-38545 is a heap-based buffer overflow vulnerability in the SOCKS5 proxy handshake in libcurl and curl. When curl is...

Debian DSA-5523-1 : curl - security update

The remote Debian 11 / 12 host has packages installed that are affected by multiple vulnerabilities as referenced in the dsa-5523 advisory. - CVE-2023-38545 is a heap-based buffer overflow vulnerability in the SOCKS5 proxy handshake in libcurl and curl. When curl is given a hostname to pass along...

FreeBSD : curl -- SOCKS5 heap buffer overflow (d6c19e8c-6806-11ee-9464-b42e991fc52e)

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the d6c19e8c-6806-11ee-9464-b42e991fc52e advisory. - CVE-2023-38545 is a heap-based buffer overflow vulnerability in the SOCKS5 proxy handshake in libcurl...

cURL SOCKS5 Heap Overflow Vulnerability

cURL is a network data transfer project. Usually when we say cURL, we mean the cURL command line tool. cURL's underlying use is the libcurl library. A heap overflow vulnerability exists in cURL SOCKS5, which can be exploited by an attacker to construct a malicious hostname and cause code executio...

libcurl 7.69 < 8.4.0 Heap Buffer Overflow

The version of libcurl installed on the remote host is affected by a heap based buffer overflow in the SOCKS5 proxy handshake. When curl is asked to pass along the hostname to the SOCKS5 proxy to allow that to resolve the address instead of it getting done by curl itself, the maximum length that...

Ubuntu 20.04 LTS / 22.04 LTS / 23.04 : curl vulnerabilities (USN-6429-1)

The remote Ubuntu 20.04 LTS / 22.04 LTS / 23.04 host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-6429-1 advisory. Jay Satiro discovered that curl incorrectly handled hostnames when using a SOCKS5 proxy. In environments where curl is configured to...

Curl 7.69 < 8.4.0 Heap Buffer Overflow

The version of curl installed on the remote host is affected by a heap based buffer overflow in the SOCKS5 proxy handshake. When curl is asked to pass along the hostname to the SOCKS5 proxy to allow that to resolve the address instead of it getting done by curl itself, the maximum length that...

Heap-based Buffer Overflow

Overview Affected versions of this package are vulnerable to Heap-based Buffer Overflow in the SOCKS5 proxy handshake process when the hostname is longer than the target buffer and larger than 255 bytes. The local variable socks5resolvelocal could get the wrong value during a slow SOCKS5 handshak...

Heap-based Buffer Overflow

Overview curl-cffi is a python binding for curl-impersonate via cffi. Affected versions of this package are vulnerable to Heap-based Buffer Overflow in the SOCKS5 proxy handshake process when the hostname is longer than the target buffer and larger than 255 bytes. The local variable...

curl: CVE-2023-38545: socks5 heap buffer overflow

Vulnerability description not provided...

curl -- SOCKS5 heap buffer overflow

The curl team reports: This flaw makes curl overflow a heap based buffer in the SOCKS5 proxy handshake. When curl is asked to pass along the hostname to the SOCKS5 proxy to allow that to resolve the address instead of it getting done by curl itself, the maximum length that hostname can be is 255...

Authentication Bypass

Sing is vulnerable to an authentication bypass vulnerability. The vulnerability is due to SOCKS5 inbound user authentication which allows an attacker to bypass authentication by using specially crafted packets...

GHSA-R5HM-MP3J-285G sing-box vulnerable to improper authentication in the SOCKS inbound

Impact This vulnerability allows specially crafted requests to bypass authentication, affecting all SOCKS inbounds with user authentication. Patches Update to sing-box 1.4.5 or 1.5.0-rc.5 and later versions. Workarounds Don't expose the SOCKS5 inbound to insecure environments...

Authentication flaw

Sing-box is an open source proxy system. Affected versions are subject to an authentication bypass when specially crafted requests are sent to sing-box. This affects all SOCKS5 inbounds with user authentication and an attacker may be able to bypass authentication. Users are advised to update to...

CVE-2023-43644 Improper authentication in the SOCKS5 inbound in sing-box

Sing-box is an open source proxy system. Affected versions are subject to an authentication bypass when specially crafted requests are sent to sing-box. This affects all SOCKS5 inbounds with user authentication and an attacker may be able to bypass authentication. Users are advised to update to...

CVE-2023-43644

CVE-2023-43644 affects sing-box and enables an authentication bypass for all SOCKS5 inbounds with user authentication via specially crafted requests. The impact is an authentication bypass with potential high-severity consequences. Affected versions require updating to sing-box 1.4.4 or 1.5.0-rc....

CVE-2023-43644 Improper authentication in the SOCKS5 inbound in sing-box

Sing-box is an open source proxy system. Affected versions are subject to an authentication bypass when specially crafted requests are sent to sing-box. This affects all SOCKS5 inbounds with user authentication and an attacker may be able to bypass authentication. Users are advised to update to...

CVE-2023-43644 Improper authentication in the SOCKS5 inbound in sing-box

Sing-box is an open source proxy system. Affected versions are subject to an authentication bypass when specially crafted requests are sent to sing-box. This affects all SOCKS5 inbounds with user authentication and an attacker may be able to bypass authentication. Users are advised to update to...