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CVE-2009-3555

TLS: MITM attacks via session renegotiation

The TLS protocol, and the SSL protocol 3.0 and possibly earlier, as used in Microsoft Internet Information Services (IIS) 7.0, mod_ssl in the Apache HTTP Server 2.2.14 and earlier, OpenSSL before 0.9.8l, GnuTLS 2.8.5 and earlier, Mozilla Network Security Services (NSS) 3.12.4 and earlier, multiple Cisco products, and other products, does not properly associate renegotiation handshakes with an existing connection, which allows man-in-the-middle attackers to insert data into HTTPS sessions, and possibly other types of sessions protected by TLS or SSL, by sending an unauthenticated request that is processed retroactively by a server in a post-renegotiation context, related to a "plaintext injection" attack, aka the "Project Mogul" issue.

CVSS 3.1 · 9.8 Critical EPSS 87.3% KEV · Not listed
Vendors
Apache Canonical Debian and 6 more
Products
Http Server Ubuntu Linux Debian Linux and 12 more
CVE-2023-4421

nss: new tlsfuzzer code can still detect timing issues in RSA operations

The NSS code used for checking PKCS#1 v1.5 was leaking information useful in mounting Bleichenbacher-like attacks. Both the overall correctness of the padding as well as the length of the encrypted message was leaking through timing side-channel. By sending large number of attacker-selected ciphertexts, the attacker would be able to decrypt a previously intercepted PKCS#1 v1.5 ciphertext (for example, to decrypt a TLS session that used RSA key exchange), or forge a signature using the victim's key. The issue was fixed by implementing the implicit rejection algorithm, in which the NSS returns a deterministic random message in case invalid padding is detected, as proposed in the Marvin Attack paper. This vulnerability affects NSS < 3.61.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Vendors
Mozilla
Products
Nss
CVE-2016-1938

NSS: Errors in mp_div and mp_exptmod cryptographic functions

The s_mp_div function in lib/freebl/mpi/mpi.c in Mozilla Network Security Services (NSS) before 3.21, as used in Mozilla Firefox before 44.0, improperly divides numbers, which might make it easier for remote attackers to defeat cryptographic protection mechanisms by leveraging use of the (1) mp_div or (2) mp_exptmod function.

CVSS 3.0 · 6.5 Medium EPSS 3.2% KEV · Not listed
Vendors
Mozilla Opensuse
Products
Firefox Nss Leap and 1 more
CVE-2021-43527

nss: Memory corruption in decodeECorDsaSignature with DSA signatures (and RSA-PSS)

NSS (Network Security Services) versions prior to 3.73 or 3.68.1 ESR are vulnerable to a heap overflow when handling DER-encoded DSA or RSA-PSS signatures. Applications using NSS for handling signatures encoded within CMS, S/MIME, PKCS \#7, or PKCS \#12 are likely to be impacted. Applications using NSS for certificate validation or other TLS, X.509, OCSP or CRL functionality may be impacted, depending on how they configure NSS. *Note: This vulnerability does NOT impact Mozilla Firefox.* However, email clients and PDF viewers that use NSS for signature verification, such as Thunderbird, LibreOffice, Evolution and Evince are believed to be impacted. This vulnerability affects NSS < 3.73 and NSS < 3.68.1.

CVSS 3.1 · 9.8 Critical EPSS 17.6% KEV · Not listed
Vendors
Mozilla Netapp Oracle and 2 more
Products
Nss Nss Esr Cloud Backup and 14 more
CVE-2020-12403

nss: CHACHA20-POLY1305 decryption with undersized tag leads to out-of-bounds read

A flaw was found in the way CHACHA20-POLY1305 was implemented in NSS in versions before 3.55. When using multi-part Chacha20, it could cause out-of-bounds reads. This issue was fixed by explicitly disabling multi-part ChaCha20 (which was not functioning correctly) and strictly enforcing tag length. The highest threat from this vulnerability is to confidentiality and system availability.

CVSS 3.1 · 9.1 Critical EPSS 1.5% KEV · Not listed
Vendors
Mozilla Redhat
Products
Nss Enterprise Linux Openshift Do and 4 more
CVE-2016-5285

nss: Missing NULL check in PK11_SignWithSymKey / ssl3_ComputeRecordMACConstantTime causes server crash

A Null pointer dereference vulnerability exists in Mozilla Network Security Services due to a missing NULL check in PK11_SignWithSymKey / ssl3_ComputeRecordMACConstantTime, which could let a remote malicious user cause a Denial of Service.

CVSS 3.1 · 7.5 High EPSS 2.3% KEV · Not listed
Vendors
Avaya Debian Mozilla and 2 more
Products
Aura Application Enablement Services Aura Application Server 5300 Aura Communication Manager and 29 more