JLSEC-2026-260 Issue summary: A TLS 1.3 connection using certificate compression can be forced to allocate a...

Issue summary: A TLS 1.3 connection using certificate compression can be forced to allocate a large buffer before decompression without checking against the configured certificate size limit. Impact summary: An attacker can cause per-connection memory allocations of up to approximately 22 MiB and...

openssl: OpenSSL: Denial of Service due to excessive memory allocation in TLS 1.3 certificate compression

A flaw was found in OpenSSL. A remote attacker can exploit this vulnerability by sending a specially crafted CompressedCertificate message during the TLS 1.3 handshake. This can cause excessive per-connection memory allocations, leading to resource exhaustion and a Denial of Service DoS for...

CVE-2025-66199

Issue summary: A TLS 1.3 connection using certificate compression can be forced to allocate a large buffer before decompression without checking against the configured certificate size limit. Impact summary: An attacker can cause per-connection memory allocations of up to approximately 22 MiB and...

EUVD-2025-206398

Issue summary: A TLS 1.3 connection using certificate compression can be forced to allocate a large buffer before decompression without checking against the configured certificate size limit. Impact summary: An attacker can cause per-connection memory allocations of up to approximately 22 MiB and...

Exploit for Infinite Loop in Openssl

A simple remote triggering POC for CVE-2022-0778 Why While...

DEBIAN-CVE-2022-25638

In wolfSSL before 5.2.0, certificate validation may be bypassed during attempted authentication by a TLS 1.3 client to a TLS 1.3 server. This occurs when the sigalgo field differs between the certificateverify message and the certificate message...

openssl security update

1.0.2k-16.0.1.el76.1 - Bump release for rebuild. 1.0.2k-16.1 - use SHA-256 in FIPS RSA pairwise key check - fix CVE-2018-5407 - EC signature local timing side-channel key extraction 1.0.2k-16 - fix CVE-2018-0495 - ROHNP - Key Extraction Side Channel on DSA, ECDSA - fix incorrect error message on...

openssl: certificate message OOB reads

Multiple out of bounds read flaws were found in the way OpenSSL handled certain TLS/SSL protocol handshake messages. A remote attacker could possibly use these flaws to crash a TLS/SSL server or client using OpenSSL...

openSUSE Security Update : openssl-steam (openSUSE-2018-168)

This update for openssl-steam fixes the following issues : - Merged changes from upstream openssl Factory rev 137 into this fork for Steam. Updated to openssl 1.0.2k : - CVE-2016-7055: Montgomery multiplication may produce incorrect results boo1009528 - CVE-2016-7056: ECSDA P-256 timing attack ke...

Internet Bug Bounty: Certificate message OOB reads (CVE-2016-6306)

In OpenSSL 1.0.2 and earlier some missing message length checks can result in OOB reads of up to 2 bytes beyond an allocated buffer. There is a theoretical DoS risk but this has not been observed in practice on common platforms. The messages affected are client certificate, client certificate...

OpenSSL Security Advisory [22 Sept 2016]

The OpenSSL project released an advisory on Sept 22nd, 2016, describing 1 High, 1 Medium and 12 Low severity vulnerabilities, as listed below: OCSP Status Request extension unbounded memory growth CVE-2016-6304 SSLpeek hang on empty record CVE-2016-6305 SWEET32 Mitigation CVE-2016-2183 OOB write ...

OracleVM 3.2 : openssl (OVMSA-2016-0141)

The remote OracleVM system is missing necessary patches to address critical security updates : - fix CVE-2016-2177 - possible integer overflow - fix CVE-2016-2178 - non-constant time DSA operations - fix CVE-2016-2182 - possible buffer overflow in BNbn2dec - fix CVE-2016-6306 - certificate messag...

Oracle Linux 5 : openssl (ELSA-2016-3627)

The remote Oracle Linux 5 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2016-3627 advisory. - fix CVE-2016-2177 - possible integer overflow - fix CVE-2016-2178 - non-constant time DSA operations - fix CVE-2016-2182 - possible buffer overflow i...

openssl security update

0.9.8e-40.0.3 - fix CVE-2016-2177 - possible integer overflow - fix CVE-2016-2178 - non-constant time DSA operations - fix CVE-2016-2182 - possible buffer overflow in BNbn2dec - fix CVE-2016-6306 - certificate message OOB reads - mitigate CVE-2016-2183 - degrade all 64bit block ciphers and RC4 to...

SUSE SLED12 / SLES12 Security Update : compat-openssl098 (SUSE-SU-2016:2468-1)

This update for compat-openssl098 fixes the following issues: OpenSSL Security Advisory 22 Sep 2016 bsc999665 Severity: High - OCSP Status Request extension unbounded memory growth CVE-2016-6304 bsc999666 Severity: Low - Pointer arithmetic undefined behaviour CVE-2016-2177 bsc982575 - Constant ti...

Oracle Linux 6 / 7 : openssl (ELSA-2016-1940)

The remote Oracle Linux 6 / 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2016-1940 advisory. - fix CVE-2016-2177 - possible integer overflow - fix CVE-2016-2178 - non-constant time DSA operations - fix CVE-2016-2179 - further DoS issues in...

SUSE SLED12 / SLES12 Security Update : openssl (SUSE-SU-2016:2394-1)

This update for openssl fixes the following issues: OpenSSL Security Advisory 22 Sep 2016 bsc999665 Severity: High - OCSP Status Request extension unbounded memory growth CVE-2016-6304 bsc999666 Severity: Low - Pointer arithmetic undefined behaviour CVE-2016-2177 bsc982575 - Constant time flag no...

openssl security update

1.0.1e-48.3 - fix CVE-2016-2177 - possible integer overflow - fix CVE-2016-2178 - non-constant time DSA operations - fix CVE-2016-2179 - further DoS issues in DTLS - fix CVE-2016-2180 - OOB read in TSOBJprintbio - fix CVE-2016-2181 - DTLS1 replay protection and unprocessed records issue - fix...

FreeBSD : OpenSSL -- multiple vulnerabilities (43eaa656-80bc-11e6-bf52-b499baebfeaf)

OpenSSL reports : High: OCSP Status Request extension unbounded memory growth SSLpeek hang on empty record SWEET32 Mitigation OOB write in MDC2Update Malformed SHA512 ticket DoS OOB write in BNbn2dec OOB read in TSOBJprintbio Pointer arithmetic undefined behaviour Constant time flag not preserved...

OpenSSL -- multiple vulnerabilities

OpenSSL reports: High: OCSP Status Request extension unbounded memory growth SSLpeek hang on empty record SWEET32 Mitigation OOB write in MDC2Update Malformed SHA512 ticket DoS OOB write in BNbn2dec OOB read in TSOBJprintbio Pointer arithmetic undefined behaviour Constant time flag not preserved ...