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A cached side channel attack during handshakes using RSA encryption could allow for the decryption of encrypted content. This is a variant of the Adaptive Chosen Ciphertext attack (AKA Bleichenbacher attack) and affects all NSS...
1 affected package
nss
| Package | 26.04 LTS | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|---|
| nss | — | — | — | — | Fixed |
Simultaneous Multi-threading (SMT) in processors can enable local users to exploit software vulnerable to timing attacks via a side-channel timing attack on 'port contention'.
3 affected packages
openssl, openssl098, openssl1.0
| Package | 26.04 LTS | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|---|
| openssl | — | — | — | Not affected | Fixed |
| openssl098 | — | — | — | Not in release | Not in release |
| openssl1.0 | — | — | — | Not in release | Fixed |
The OpenSSL DSA signature algorithm has been shown to be vulnerable to a timing side channel attack. An attacker could use variations in the signing algorithm to recover the private key. Fixed in OpenSSL 1.1.1a (Affected 1.1.1)....
3 affected packages
openssl, openssl098, openssl1.0
| Package | 26.04 LTS | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|---|
| openssl | — | — | — | Fixed | Fixed |
| openssl098 | — | — | — | Not in release | Not in release |
| openssl1.0 | — | — | — | Not in release | Fixed |
The OpenSSL ECDSA signature algorithm has been shown to be vulnerable to a timing side channel attack. An attacker could use variations in the signing algorithm to recover the private key. Fixed in OpenSSL 1.1.0j...
3 affected packages
openssl, openssl098, openssl1.0
| Package | 26.04 LTS | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|---|
| openssl | — | — | — | Fixed | Fixed |
| openssl098 | — | — | — | Not in release | Not in release |
| openssl1.0 | — | — | — | Not in release | Not affected |
Some fixes available 7 of 8
An issue was discovered in the OpenSSL library in Ruby before 2.3.8, 2.4.x before 2.4.5, 2.5.x before 2.5.2, and 2.6.x before 2.6.0-preview3. When two OpenSSL::X509::Name objects are compared using ==, depending on the ordering,...
5 affected packages
ruby1.9.1, ruby2.0, ruby2.3, ruby2.5, ruby-openssl
| Package | 26.04 LTS | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|---|
| ruby1.9.1 | — | Not in release | Not in release | Not in release | Not in release |
| ruby2.0 | — | Not in release | Not in release | Not in release | Not in release |
| ruby2.3 | — | Not in release | Not in release | Not in release | Not in release |
| ruby2.5 | — | Not in release | Not in release | Not in release | Fixed |
| ruby-openssl | — | Not in release | Not in release | Not in release | Not affected |
Python Cryptographic Authority pyopenssl version Before 17.5.0 contains a CWE - 401 : Failure to Release Memory Before Removing Last Reference vulnerability in PKCS #12 Store that can result in Denial of service if memory runs low...
1 affected package
pyopenssl
| Package | 26.04 LTS | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|---|
| pyopenssl | — | — | — | — | Not affected |
Python Cryptographic Authority pyopenssl version prior to version 17.5.0 contains a CWE-416: Use After Free vulnerability in X509 object handling that can result in Use after free can lead to possible denial of service or remote...
1 affected package
pyopenssl
| Package | 26.04 LTS | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|---|
| pyopenssl | — | — | — | — | Not affected |
When handling a SSLv2-compatible ClientHello request, the server doesn't generate a new random value but sends an all-zero value instead. This results in full malleability of the ClientHello for SSLv2 used for TLS 1.2 in all...
1 affected package
nss
| Package | 26.04 LTS | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|---|
| nss | — | — | — | — | Fixed |
Remotely observable behaviour in auth-gss2.c in OpenSSH through 7.8 could be used by remote attackers to detect existence of users on a target system when GSS2 is in use. NOTE: the discoverer states 'We understand that the OpenSSH...
2 affected packages
openssh, openssh-ssh1
| Package | 26.04 LTS | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|---|
| openssh | — | — | — | Ignored | Ignored |
| openssh-ssh1 | — | — | — | Ignored | Ignored |
OpenSSH through 7.7 is prone to a user enumeration vulnerability due to not delaying bailout for an invalid authenticating user until after the packet containing the request has been fully parsed, related to...
2 affected packages
openssh, openssh-ssh1
| Package | 26.04 LTS | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|---|
| openssh | — | — | — | Not affected | Fixed |
| openssh-ssh1 | — | — | — | Not affected | Not affected |