Security Bulletin: AIX is vulnerable to a denial of service (CVE-2025-9086) due to cURL libcurl

Summary Vulnerability in cURL libcurl could allow a remote attacker to cause a denial of service CVE-2025-9086. AIX uses cURL libcurl as part of rsyslog, LV/PV encryption integration with HPCS and in Live Update for interacting with HMC. Vulnerability Details CVEID:CVE-2025-9086 DESCRIPTION: 1. A...

Moderate: Red Hat Security Advisory: curl security update

An update for curl is now available for Red Hat Enterprise Linux 9.6 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for eac...

RHEL 9 : curl (RHSA-2025:23043)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2025:23043 advisory. The curl packages provide the libcurl library and the curl utility for downloading files from servers using various protocols, including HTTP, FTP,...

curl: CVE-2025-14524: bearer token leak on cross-protocol redirect

Summary: A vulnerability exists in libcurl regarding the handling of OAuth2 Bearer tokens CURLOPTXOAUTH2BEARER during HTTP redirects. While libcurl correctly clears standard authentication credentials CURLOPTUSERPWD when following a redirect to a different host, port, or protocol a security...

curl: SMTP Protocol Injection via CRLF in CURLOPT_MAIL_FROM leading to Email Spoofing

Voici le rapport complet et finalisé. J'ai intégré la version spécifique de curl que vous avez fournie et j'ai ajouté une section détaillée "Vulnerable Code Analysis" avec les extraits de code expliqués, comme demandé. J'ai retiré la section Impact conformément à votre consigne. Summary: A critic...

curl: Double-free vulnerability in libcurl with rustls via NoServerCertVerifier condition leads to application crash

Summary: There is a double-free in libcurl with rustls. The root cause is reported and it is fixed in https://github.com/curl/curl/pull/19425, while I did not try to evaluate the actual triggering at that time. No AI was used to find the issue or generate the report. Affected version It was...

Siemens SIMATIC S7-1500 Improper Certificate Validation (CVE-2020-8286)

The libcurl library versions 7.41.0 to and including 7.73.0 are vulnerable to an improper check for certificate revocation due to insufficient verification of the OCSP response. This vulnerability could allow an attacker to pass a revoked certificate as valid. This plugin only works with...

Siemens SIMATIC and SCALANCE Integer Overflow to Buffer Overflow (CVE-2025-0725)

When libcurl is asked to perform automatic gzip decompression of content-encoded HTTP responses with the CURLOPTACCEPTENCODING option, using zlib 1.2.0.3 or older, an attacker-controlled integer overflow would make libcurl perform a buffer overflow. This plugin only works with Tenable.ot. Please...

Siemens SIMATIC S7-1500 Improper Input Validation (CVE-2023-27538)

libcurl would reuse a previously created connection even when an SSH related option had been changed that should have prohibited reuse. libcurl keeps previously used connections in a connection pool for subsequent transfers to reuse if one of them matches the setup. However, two SSH settings were...

Siemens SIMATIC S7-1500 Integer Overflow or Wraparound (CVE-2019-5435)

An integer overflow in curl's URL API results in a buffer overflow in libcurl 7.62.0 to and including 7.64.1. This plugin only works with Tenable.ot. Please visit https://www.tenable.com/products/tenable-ot for more information. %NASLMINLEVEL 80900 C Tenable, Inc. include'compat.inc'; if...

Siemens SIMATIC S7-1500 Exposure of Sensitive Information to an Unauthorized Actor (CVE-2020-8169)

The libcurl library versions 7.62.0 to and including 7.70.0 are vulnerable to an information disclosure vulnerability that can lead to a partial password being leaked over the network and to the DNS servers. This plugin only works with Tenable.ot. Please visit...

Siemens SIMATIC and SCALANCE Improper Input Validation (CVE-2024-7264)

libcurl's ASN1 parser code has the GTime2str function, used for parsing an ASN.1 Generalized Time field. If given an syntactically incorrect field, the parser might end up using -1 for the length of the time fraction, leading to a strlen getting performed on a pointer to a heap buffer area that i...

Siemens SIMATIC S7-1500 Improper Certificate Validation (CVE-2024-2379)

libcurl skips the certificate verification for a QUIC connection under certain conditions, when built to use wolfSSL. If told to use an unknown/bad cipher or curve, the error path accidentally skips the verification and returns OK, thus ignoring any certificate problems. This plugin only works wi...

Siemens SIMATIC S7-1500 Improper Authentication (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...

Siemens RUGGEDCOM ROX, SIMATIC S7-1500 Uncontrolled Resource Consumption (CVE-2022-27781)

libcurl provides the CURLOPTCERTINFO option to allow applications torequest details to be returned about a server's certificate chain.Due to an erroneous function, a malicious server could make libcurl built withNSS get stuck in a never-ending busy-loop when trying to retrieve thatinformation. Th...

Siemens RUGGEDCOM ROX, SIMATIC S7-1500 Improper Certificate Validation (CVE-2022-27782)

libcurl would reuse a previously created connection even when a TLS or SSHrelated option had been changed that should have prohibited reuse.libcurl keeps previously used connections in a connection pool for subsequenttransfers to reuse if one of them matches the setup. However, several TLS andSSH...

Siemens SIMATIC S7-1500 Improper Certificate Validation (CVE-2021-22926)

libcurl-using applications can ask for a specific client certificate to be used in a transfer. This is done with the CURLOPTSSLCERT option --cert with the command line tool.When libcurl is built to use the macOS native TLS library Secure Transport, an application can ask for the client certificat...

Siemens SIMATIC and SCALANCE Multiple Releases of Same Resource or Handle (CVE-2025-0665)

libcurl would wrongly close the same eventfd file descriptor twice when taking down a connection channel after having completed a threaded name resolve. This plugin only works with Tenable.ot. Please visit https://www.tenable.com/products/tenable-ot for more information. %NASLMINLEVEL 80900 C...

Siemens SIMATIC S7-1500 Use After Free (CVE-2020-8231)

Due to use of a dangling pointer, libcurl 7.29.0 through 7.71.1 can use the wrong connection when sending data. This plugin only works with Tenable.ot. Please visit https://www.tenable.com/products/tenable-ot for more information. %NASLMINLEVEL 80900 C Tenable, Inc. include'compat.inc'; if...

Siemens SIMATIC S7-1500 Out-of-bounds Write (CVE-2019-5436)

A heap buffer overflow in the TFTP receiving code allows for DoS or arbitrary code execution in libcurl versions 7.19.4 through 7.64.1. This plugin only works with Tenable.ot. Please visit https://www.tenable.com/products/tenable-ot for more information. %NASLMINLEVEL 80900 C Tenable, Inc...