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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 |
A flaw was found in gnutls. This vulnerability occurs because permitted name constraints were incorrectly ignored when previous Certificate Authorities (CAs) only had excluded name constraints. A remote attacker could exploit this...
1 affected package
gnutls28
| Package | 26.04 LTS | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|---|
| gnutls28 | Fixed | Fixed | Fixed | Fixed | Fixed |
A flaw was found in gnutls. Servers configured with RSA-PSK (Rivest–Shamir–Adleman – Pre-Shared Key) wrongfully matched usernames containing a NUL character with truncated usernames. A remote attacker could exploit this by sending...
1 affected package
gnutls28
| Package | 26.04 LTS | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|---|
| gnutls28 | Fixed | Fixed | Fixed | Fixed | Not affected |
A heap buffer overflow vulnerability exists in the DTLS handshake fragment reassembly logic of GnuTLS. The issue arises in merge_handshake_packet() where incoming handshake fragments are matched and merged based solely...
1 affected package
gnutls28
| Package | 26.04 LTS | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|---|
| gnutls28 | Fixed | Fixed | Fixed | Fixed | Fixed |
A flaw was found in gnutls. A remote attacker could exploit this vulnerability by presenting a specially crafted Online Certificate Status Protocol (OCSP) response during a TLS handshake. Due to a logic error in how gnutls...
1 affected package
gnutls28
| Package | 26.04 LTS | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|---|
| gnutls28 | Fixed | Fixed | Fixed | Not affected | Not affected |
A flaw was found in gnutls. The PKCS#7 padding check, performed during decryption, was not constant-time. This timing side-channel could allow a remote attacker to potentially leak sensitive information about the padding bytes...
1 affected package
gnutls28
| Package | 26.04 LTS | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|---|
| gnutls28 | Fixed | Fixed | Not affected | Not affected | Not affected |