Most recent entries from all

ALSA-2023:0946 — Moderate: openssl security and bug fix update

Affected: AlmaLinux:9: openssl, AlmaLinux:9: openssl-devel, AlmaLinux:9: openssl-libs, AlmaLinux:9: openssl-perl

OpenSSL is a toolkit that implements the Secure Sockets Layer (SSL) and Transport Layer Security (TLS) protocols, as well as a full-strength general-purpose cryptography library.

Security Fix(es):

* openssl: read buffer overflow in X.509 certificate verification (CVE-2022-4203) * openssl: timing attack in RSA Decryption implementation (CVE-2022-4304) * openssl: double free after calling PEM_read_bio_ex (CVE-2022-4450) * openssl: use-after-free following BIO_new_NDEF (CVE-2023-0215) * openssl: invalid pointer dereference in d2i_PKCS7 functions (CVE-2023-0216) * openssl: NULL dereference validating DSA public key (CVE-2023-0217) * openssl: X.400 address type confusion in X.509 GeneralName (CVE-2023-0286) * openssl: NULL dereference during PKCS7 data verification (CVE-2023-0401)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Bug Fix(es):

* HMAC generation should reject key lengths < 112 bits or provide an indicator in FIPS mode (BZ#2144000) * In FIPS mode, openssl should set a minimum length for passwords in PBKDF2 (BZ#2144003) * stunnel consumes high amount of memory when pestered with TCP connections without a TLS handshake (BZ#2144008) * In FIPS mode, openssl should reject SHAKE as digest for RSA-OAEP or provide an indicator (BZ#2144010) * In FIPS mode, openssl should reject RSASSA-PSS salt lengths larger than the output size of t…

bdu:2023-02239

Withdrawn: BELL-CVE-2023-0216 — CVE-2023-0216 does not affect BellSoft software

Withdrawn by the publisher.

certfr-2023-avi-0102 — De multiples vulnérabilités ont été découvertes dans OpenSSL. Elles permettent à un attaquant de provoquer un déni de s…

certfr-2023-avi-0102

Withdrawn: CLEANSTART-2026-GK72927 — Issue summary: PBMAC1 parameters in PKCS#12 files are missing validation which can trigger a stack-based buffer overflo…

Withdrawn by the publisher.

Affected: CleanStart: openssl

Multiple security vulnerabilities affect the openssl package. Issue summary: PBMAC1 parameters in PKCS#12 files are missing validation which can trigger a stack-based buffer overflow, invalid pointer or NULL pointer dereference during MAC verification. See references for individual vulnerability details.

EUVD-2026-259568

fkie_cve-2023-0216

An invalid pointer dereference on read can be triggered when an application tries to load malformed PKCS7 data with the d2i_PKCS7(), d2i_PKCS7_bio() or d2i_PKCS7_fp() functions.

The result of the dereference is an application crash which could lead to a denial of service attack. The TLS implementation in OpenSSL does not call this function however third party applications might call these functions on untrusted data.

GHSA-29xx-hcv2-c4cp — openssl-src subject to Invalid pointer dereference in `d2i_PKCS7` functions

Affected: crates.io: openssl-src

An invalid pointer dereference on read can be triggered when an application tries to load malformed PKCS7 data with the `d2i_PKCS7()`, `d2i_PKCS7_bio()` or `d2i_PKCS7_fp()` functions.

gsd-2023-0216

ICSA-23-320-08 — Siemens SCALANCE Family Products

A read buffer overrun can be triggered in X.509 certificate verification, specifically in name constraint checking. Note that this occurs after certificate chain signature verification and requires either a CA to have signed the malicious certificate or for the application to continue certificate verification despite failure to construct a path to a trusted issuer. The read buffer overrun might result in a crash which could lead to a denial of service attack. In theory it could also result in the disclosure of private memory contents (such as private keys, or sensitive plaintext) although we are not aware of any working exploit leading to memory contents disclosure as of the time of release of this advisory. In a TLS client, this can be triggered by connecting to a malicious server. In a TLS server, this can be triggered if the server requests client authentication and a malicious client connects. A timing based side channel exists in the OpenSSL RSA Decryption implementation which could be sufficient to recover a plaintext across a network in a Bleichenbacher style attack. To achieve a successful decryption an attacker would have to be able to send a very large number of trial messages for decryption. The vulnerability affects all RSA padding modes: PKCS#1 v1.5, RSA-OEAP and RSASVE. For example, in a TLS connection, RSA is commonly used by a client to send an encrypted pre-master secret to the server. An attacker that had observed a genuine connection between a client and a…

openSUSE-SU-2024:12716-1 — libopenssl-3-devel-3.0.8-1.1 on GA media

libopenssl-3-devel-3.0.8-1.1 on GA media

RHSA-2023:1199 — Red Hat Security Advisory: openssl security and bug fix update

openssl: read buffer overflow in X.509 certificate verification openssl: timing attack in RSA Decryption implementation openssl: double free after calling PEM_read_bio_ex openssl: use-after-free following BIO_new_NDEF openssl: invalid pointer dereference in d2i_PKCS7 functions openssl: NULL dereference validating DSA public key openssl: X.400 address type confusion in X.509 GeneralName openssl: NULL dereference during PKCS7 data verification

RUSTSEC-2023-0011 — Invalid pointer dereference in `d2i_PKCS7` functions

Affected: crates.io: openssl-src

An invalid pointer dereference on read can be triggered when an application tries to load malformed PKCS7 data with the `d2i_PKCS7()`, `d2i_PKCS7_bio()` or `d2i_PKCS7_fp()` functions.

UBUNTU-CVE-2023-0216

Affected: Ubuntu:22.04:LTS: openssl

An invalid pointer dereference on read can be triggered when an application tries to load malformed PKCS7 data with the d2i_PKCS7(), d2i_PKCS7_bio() or d2i_PKCS7_fp() functions. The result of the dereference is an application crash which could lead to a denial of service attack. The TLS implementation in OpenSSL does not call this function however third party applications might call these functions on untrusted data.

WID-SEC-W-2023-0304 — OpenSSL: Mehrere Schwachstellen

Ein entfernter, authentisierter oder anonymer Angreifer kann mehrere Schwachstellen in OpenSSL ausnutzen, um einen Denial of Service Angriff durchzuführen, Informationen offenzulegen oder Chiffretext über ein Netzwerk wiederherzustellen.