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

A remote code execution flaw was found in the way NSS verifies certificates. This flaw allows an attacker posing as an SSL/TLS server to trigger this issue in a client application compiled with NSS when it tries to initiate an SSL/TLS connection. Similarly, a server application compiled with NSS,...

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

A remote code execution flaw was found in the way NSS verifies certificates. This flaw allows an attacker posing as an SSL/TLS server to trigger this issue in a client application compiled with NSS when it tries to initiate an SSL/TLS connection. Similarly, a server application compiled with NSS,...

Critical: Red Hat Security Advisory: nss security update

An update for nss is now available for Red Hat Enterprise Linux 7.4 Advanced Update Support. Red Hat Product Security has rated this update as having a security impact of Critical. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each...

Security update for mozilla-nss (important)

openSUSE Security Update: Security update for mozilla-nss Announcement ID: openSUSE-SU-2021:3934-1 Rating: important References: 1193170 Cross-References: CVE-2021-43527 CVSS scores: CVE-2021-43527 SUSE: 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Affected Products: openSUSE Leap 15.3 An...

Photon OS 1.0: Nss PHSA-2021-1.0-0454

An update of the nss package has been released. - 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 \...

Slackware Linux 14.0 / 14.1 / 14.2 / current mozilla-nss Vulnerability (SSA:2021-337-01)

The version of mozilla-nss installed on the remote host is prior to 3.23 / 3.40.1 / 3.73. It is, therefore, affected by a vulnerability as referenced in the SSA:2021-337-01 advisory. - NSS Network Security Services versions prior to 3.73 or 3.68.1 ESR are vulnerable to a heap overflow when handli...

Critical: Red Hat Security Advisory: nss security update

An update for nss is now available for Red Hat Enterprise Linux 8.4 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Critical. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each...

Critical Bug in Mozilla's NSS Crypto Library Potentially Affects Several Other Software

Mozilla has rolled out fixes to address a critical security weakness in its cross-platform Network Security Services NSS cryptographic library that could be potentially exploited by an adversary to crash a vulnerable application and even execute arbitrary code. Tracked as CVE-2021-43527, the flaw...

Ubuntu 18.04 LTS / 20.04 LTS : NSS vulnerability (USN-5168-1)

The remote Ubuntu 18.04 LTS / 20.04 LTS host has packages installed that are affected by a vulnerability as referenced in the USN-5168-1 advisory. Tavis Ormandy discovered that NSS incorrectly handled verifying DSA/RSA-PSS signatures. A remote attacker could use this issue to cause NSS to crash,...

Debian DSA-5016-1 : nss - security update

The remote Debian 10 / 11 host has packages installed that are affected by a vulnerability as referenced in the dsa-5016 advisory. Tavis Ormandy discovered that nss, the Mozilla Network Security Service library, is prone to a heap overflow flaw when verifying DSA or RSA-PPS signatures, which coul...

Ubuntu 16.04 ESM : NSS vulnerability (USN-5168-3)

The remote Ubuntu 16.04 ESM host has packages installed that are affected by a vulnerability as referenced in the USN-5168-3 advisory. USN-5168-1 fixed a vulnerability in NSS. This update provides the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM. Tenable has extracted the...

RHEL 6 : nss (RHSA-2021:4907)

The remote Redhat Enterprise Linux 6 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2021:4907 advisory. Network Security Services NSS is a set of libraries designed to support the cross-platform development of security-enabled client and server...

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

A remote code execution flaw was found in the way NSS verifies certificates. This flaw allows an attacker posing as an SSL/TLS server to trigger this issue in a client application compiled with NSS when it tries to initiate an SSL/TLS connection. Similarly, a server application compiled with NSS,...

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

A remote code execution flaw was found in the way NSS verifies certificates. This flaw allows an attacker posing as an SSL/TLS server to trigger this issue in a client application compiled with NSS when it tries to initiate an SSL/TLS connection. Similarly, a server application compiled with NSS,...

USN-5168-3: NSS vulnerability

USN-5168-1 fixed a vulnerability in NSS. This update provides the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM. Original advisory details: Tavis Ormandy discovered that NSS incorrectly handled verifying DSA/RSA-PSS signatures. A remote attacker could use this issue to cause NSS ...

USN-5168-1: NSS vulnerability

Tavis Ormandy discovered that NSS incorrectly handled verifying DSA/RSA-PSS signatures. A remote attacker could use this issue to cause NSS to crash, resulting in a denial of service, or possibly execute arbitrary code...

CVE-2021-43527

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 N...

UBUNTU-CVE-2021-43527

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 N...

Amazon Linux 2 : nss, nss-util, nss-softokn, nspr (ALAS-2021-1722)

The version of nspr installed on the remote host is prior to 4.32.0-1. The version of nss installed on the remote host is prior to 3.67.0-4. The version of nss-softokn installed on the remote host is prior to 3.67.0-3. The version of nss- util installed on the remote host is prior to 3.67.0-1. It...

This shouldn't have happened: A vulnerability postmortem

Posted by Tavis Ormandy, Project Zero Introduction This is an unusual blog post. I normally write posts to highlight some hidden attack surface or interesting complex vulnerability class. This time, I want to talk about a vulnerability that is neither of those things. The striking thing about thi...