CVE-2023-27535

A flaw was found in the Curl package. Libcurl keeps previously used connections in a connection pool for subsequent transfers to reuse if one of them matches the setup. However, several FTP settings were left out from the configuration match checks, making them match too easily. The problematic...

CVE-2023-27534

A path traversal vulnerability exists in curl 8.0.0 SFTP implementation causes the tilde character to be wrongly replaced when used as a prefix in the first path element, in addition to its intended use as the first element to indicate a path relative to the user's home directory. Attackers can...

SUSE CVE-2023-27534

A path traversal vulnerability exists in curl 8.0.0 SFTP implementation causes the tilde character to be wrongly replaced when used as a prefix in the first path element, in addition to its intended use as the first element to indicate a path relative to the user's home directory. Attackers can...

SUSE CVE-2023-27533

A vulnerability in input validation exists in curl 8.0 during communication using the TELNET protocol may allow an attacker to pass on maliciously crafted user name and "telnet options" during server negotiation. The lack of proper input scrubbing allows an attacker to send content or perform...

SUSE CVE-2023-27536

An authentication bypass vulnerability exists libcurl 8.0.0 in the connection reuse feature which can reuse previously established connections with incorrect user permissions due to a failure to check for changes in the CURLOPTGSSAPIDELEGATION option. This vulnerability affects...

Double Free

curl is vulnerable to Double Free. Two threads sharing the same HSTS data could end up doing a double-free or use-after-free due to missing mutexes or thread locks. This was introduced without consideration for sharing across separate threads, which could lead to a double-free or use-after-free...

Authentication Bypass

curl is vulnerable to Authentication Bypass. The library would reuse a previously created connection even if the GSS delegation CURLOPTGSSAPIDELEGATION option had been changed, but this setting was left out from configuration match checks, affecting krb5/kerberos/negotiate/GSSAPI transfers...

Authentication Bypass

curl is vulnerable to Authentication Bypass. The vulnerability exists because the SSH connection is too eager to reuse still since it keeps previously used connections in a connection pool for subsequent transfers to reuse if one of them matches the setup...

Authentication Bypass

curl is vulnerable to Authentication Bypass. The library would reuse a previously created FTP connection even when one or more options had been changed, leading to wrong credentials. Several FTP settings were left out from configuration match checks, making them easily match...

Path Traversal

curl is vulnerable to Path Traversal. The library supports SFTP transfers with a tilde character as the first path element to denote a path relative to the user's home directory. However, due to a bug, this can be used wrongly when used as a prefix in the first element...

curl -- multiple vulnerabilities

Wei Chong Tan, Harry Sintonen, and Hiroki Kurosawa reports: This update fixes 4 security vulnerabilities: Medium CVE-2023-28319: UAF in SSH sha256 fingerprint check. Reported by Wei Chong Tan on 2023-03-21 Low CVE-2023-28320: siglongjmp race condition. Reported by Harry Sintonen on 2023-04-02 Low...

Slackware: Security Advisory (SSA:2023-079-01)

The remote host is missing an update for the SPDX-FileCopyrightText: 2023 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

Ubuntu: Security Advisory (USN-5964-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2023 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

Amazon Linux 2023 : curl, curl-minimal, libcurl (ALAS2023-2023-114)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2023-114 advisory. A flaw was found in the Curl package, where the HSTS mechanism would be ignored by subsequent transfers when done on the same command line because the state would not be properly carried. This...

Amazon Linux 2023 : curl, curl-minimal, libcurl (ALAS2023-2023-083)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2023-083 advisory. 2024-02-15: CVE-2022-27781 was added to this advisory. A vulnerability was found in curl. This security flaw allows reusing OAUTH2-authenticated connections without properly ensuring that the...

CLSA-2023-1679350332 curl: Fix of CVE-2023-23916

CVE-2023-23916: fix HTTP multi-header compression denial of service - fix testing system by adding the nonewline option...

CLSA-2023-1679349850 curl: Fix of CVE-2023-23916

CVE-2023-23916: fix HTTP multi-header compression denial of service - fix testing system by adding the nonewline option...

[slackware-security] curl

New curl packages are available for Slackware 14.0, 14.1, 14.2, 15.0, and -current to fix security issues. Here are the details from the Slackware 15.0 ChangeLog: patches/packages/curl-8.0.1-i586-1slack15.0.txz: Upgraded. This update fixes security issues: SSH connection too eager reuse still. HS...

USN-5964-1: curl vulnerabilities

Harry Sintonen discovered that curl incorrectly handled certain TELNET connection options. Due to lack of proper input scrubbing, curl could pass on user name and telnet options to the server as provided, contrary to expectations. CVE-2023-27533 Harry Sintonen discovered that curl incorrectly...

TELNET option IAC injection

curl supports communicating using the TELNET protocol and as a part of this it offers users to pass on username and "telnet options" for the server negotiation. Due to lack of proper input scrubbing and without it being the documented functionality, curl would pass on username and telnet options ...