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In GnuTLS v3.8.13, an excluded msUPN/SRV otherName is never checked. NOTE: the Supplier does not consider this an actionable security vulnerability because of its "threat model doesn't consider attacks only possible by modifying...
2 affected packages
gnutls26, gnutls28
| Package | 26.04 LTS | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|---|
| gnutls26 | Not in release | Not in release | Not in release | — | — |
| gnutls28 | Vulnerable | Vulnerable | Vulnerable | Vulnerable | Vulnerable |
GnuTLS v3.8.13 does not reject end-entity X.509 certificates that contain a contradictory combination of Key Usage (KU) and Extended Key Usage (EKU). NOTE: the Supplier does not consider this an actionable security vulnerability...
2 affected packages
gnutls26, gnutls28
| Package | 26.04 LTS | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|---|
| gnutls26 | Not in release | Not in release | Not in release | — | — |
| gnutls28 | Vulnerable | Vulnerable | Vulnerable | Vulnerable | Vulnerable |
GnuTLS v3.8.13 does not reject a critical keyUsage extension when it cannot be processed, such as when extnValue is an ASN.1 NULL (05 00) instead of a BIT STRING. NOTE: the Supplier does not consider this an actionable security...
2 affected packages
gnutls26, gnutls28
| Package | 26.04 LTS | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|---|
| gnutls26 | Not in release | Not in release | Not in release | — | — |
| gnutls28 | Vulnerable | Vulnerable | Vulnerable | Vulnerable | Vulnerable |
GnuTLS v3.8.13 does not properly enforce name constraints, as demonstrated by a permitted subtree violation for "EE O=Evil accepted although outside permitted O=Good." NOTE: the Supplier does not consider this an...
2 affected packages
gnutls26, gnutls28
| Package | 26.04 LTS | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|---|
| gnutls26 | Not in release | Not in release | Not in release | — | — |
| gnutls28 | Vulnerable | Vulnerable | Vulnerable | Vulnerable | Vulnerable |
GnuTLS v3.8.13 can perhaps unexpectedly trust a certificate on the basis of Common Name when Subject Alternative Name has an SRV otherName (1.3.6.1.5.5.7.8.7) whose value is an OCTET STRING. NOTE: the Supplier does not consider...
2 affected packages
gnutls26, gnutls28
| Package | 26.04 LTS | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|---|
| gnutls26 | Not in release | Not in release | Not in release | — | — |
| gnutls28 | Vulnerable | Vulnerable | Vulnerable | Vulnerable | Vulnerable |
Some fixes available 3 of 5
A NULL pointer dereference flaw was found in GnuTLS. As Nettle's hash update functions internally call memcpy, providing zero-length input may cause undefined behavior. This flaw leads to a denial of service after authentication...
2 affected packages
gnutls26, gnutls28
| Package | 26.04 LTS | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|---|
| gnutls26 | Not in release | Not in release | Not in release | Not in release | Not in release |
| gnutls28 | Not affected | Not affected | Not affected | Fixed | Fixed |
It was discovered in gnutls before version 3.6.7 upstream that there is an uninitialized pointer access in gnutls versions 3.6.3 or later which can be triggered by certain post-handshake messages.
2 affected packages
gnutls26, gnutls28
| Package | 26.04 LTS | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|---|
| gnutls26 | — | — | — | — | Not in release |
| gnutls28 | — | — | — | — | Not affected |
A vulnerability was found in gnutls versions from 3.5.8 before 3.6.7. A memory corruption (double free) vulnerability in the certificate verification API. Any client or server application that verifies X.509 certificates with...
2 affected packages
gnutls26, gnutls28
| Package | 26.04 LTS | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|---|
| gnutls26 | — | — | — | — | Not in release |
| gnutls28 | — | — | — | — | Fixed |
Some fixes available 9 of 10
A Bleichenbacher type side-channel based padding oracle attack was found in the way gnutls handles verification of RSA decrypted PKCS#1 v1.5 data. An attacker who is able to run process on the same physical core as the...
2 affected packages
gnutls26, gnutls28
| Package | 26.04 LTS | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|---|
| gnutls26 | — | — | Not in release | Not in release | Not in release |
| gnutls28 | — | — | Fixed | Fixed | Ignored |
Some fixes available 2 of 3
A cache-based side channel in GnuTLS implementation that leads to plain text recovery in cross-VM attack setting was found. An attacker could use a combination of "Just in Time" Prime+probe attack in combination with Lucky-13...
2 affected packages
gnutls26, gnutls28
| Package | 26.04 LTS | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|---|
| gnutls26 | Not in release | Not in release | Not in release | Not in release | Not in release |
| gnutls28 | Not affected | Not affected | Not affected | Not affected | Fixed |