CVE-2024-34703

Botan is a BSD-licensed crypto library written in C++. It provides a wide variety of basic cryptographic algorithms, X.509 certificates and CRLs, PKCS #10 certificate requests, a filter/pipe message processing system, and a wide variety of other features, all written in portable C++. The API reference, tutorial, and examples may help impart the flavor of the library. This is the current stable release branch 2.x of Botan.

Security Fix(es):

Botan is a C++ cryptography library. X.509 certificates can identify elliptic curves using either an object identifier or using explicit encoding of the parameters. Prior to 3.5.0 and 2.19.5, checking name constraints in X.509 certificates is quadratic in the number of names and name constraints. An attacker who presented a certificate chain which contained a very large number of names in the SubjectAlternativeName, signed by a CA certificate which contained a large number of name constraints, could cause a denial of service. The problem has been addressed in Botan 3.5.0 and a partial backport has also been applied and is included in Botan 2.19.5.(CVE-2024-34702)

Botan is a C++ cryptography library. X.509 certificates can identify elliptic curves using either an object identifier or using explicit encoding of the parameters. Prior to versions 3.3.0 and 2.19.4, an attacker could present an ECDSA X.509 certificate using explicit encoding where the parameters are very large. The proof of concept used a 16Kbit prime for this purpose. When parsing, the parameter is checked to be prime, causing excessive computation. This was patched in 2.19.4 and 3.3.0 to allow the prime parameter of the elliptic curve to be at most 521 bits. No known workarounds are available. Note that support for explicit encoding of elliptic curve parameters is deprecated in Botan. (CVE-2024-34703)

Botan is a C++ cryptography library. X.509 certificates can identify elliptic curves using either an object identifier or using explicit encoding of the parameters. A bug in the parsing of name constraint extensions in X.509 certificates meant that if the extension included both permitted subtrees and excluded subtrees, only the permitted subtree would be checked. If a certificate included a name which was permitted by the permitted subtree but also excluded by excluded subtree, it would be accepted. Fixed in versions 3.5.0 and 2.19.5.(CVE-2024-39312)

Botan is a BSD-licensed crypto library written in C++. It provides a wide variety of basic cryptographic algorithms, X.509 certificates and CRLs, PKCS #10 certificate requests, a filter/pipe message processing system, and a wide variety of other features, all written in portable C++. The API reference, tutorial, and examples may help impart the flavor of the library. This is the current stable release branch 2.x of Botan.

Security Fix(es):

Botan is a C++ cryptography library. X.509 certificates can identify elliptic curves using either an object identifier or using explicit encoding of the parameters. Prior to 3.5.0 and 2.19.5, checking name constraints in X.509 certificates is quadratic in the number of names and name constraints. An attacker who presented a certificate chain which contained a very large number of names in the SubjectAlternativeName, signed by a CA certificate which contained a large number of name constraints, could cause a denial of service. The problem has been addressed in Botan 3.5.0 and a partial backport has also been applied and is included in Botan 2.19.5.(CVE-2024-34702)

Botan is a C++ cryptography library. X.509 certificates can identify elliptic curves using either an object identifier or using explicit encoding of the parameters. Prior to versions 3.3.0 and 2.19.4, an attacker could present an ECDSA X.509 certificate using explicit encoding where the parameters are very large. The proof of concept used a 16Kbit prime for this purpose. When parsing, the parameter is checked to be prime, causing excessive computation. This was patched in 2.19.4 and 3.3.0 to allow the prime parameter of the elliptic curve to be at most 521 bits. No known workarounds are available. Note that support for explicit encoding of elliptic curve parameters is deprecated in Botan. (CVE-2024-34703)

Botan is a C++ cryptography library. X.509 certificates can identify elliptic curves using either an object identifier or using explicit encoding of the parameters. A bug in the parsing of name constraint extensions in X.509 certificates meant that if the extension included both permitted subtrees and excluded subtrees, only the permitted subtree would be checked. If a certificate included a name which was permitted by the permitted subtree but also excluded by excluded subtree, it would be accepted. Fixed in versions 3.5.0 and 2.19.5.(CVE-2024-39312)

Botan is a BSD-licensed crypto library written in C++. It provides a wide variety of basic cryptographic algorithms, X.509 certificates and CRLs, PKCS #10 certificate requests, a filter/pipe message processing system, and a wide variety of other features, all written in portable C++. The API reference, tutorial, and examples may help impart the flavor of the library. This is the current stable release branch 2.x of Botan.

Security Fix(es):

Botan is a C++ cryptography library. X.509 certificates can identify elliptic curves using either an object identifier or using explicit encoding of the parameters. Prior to 3.5.0 and 2.19.5, checking name constraints in X.509 certificates is quadratic in the number of names and name constraints. An attacker who presented a certificate chain which contained a very large number of names in the SubjectAlternativeName, signed by a CA certificate which contained a large number of name constraints, could cause a denial of service. The problem has been addressed in Botan 3.5.0 and a partial backport has also been applied and is included in Botan 2.19.5.(CVE-2024-34702)

Botan is a C++ cryptography library. X.509 certificates can identify elliptic curves using either an object identifier or using explicit encoding of the parameters. Prior to versions 3.3.0 and 2.19.4, an attacker could present an ECDSA X.509 certificate using explicit encoding where the parameters are very large. The proof of concept used a 16Kbit prime for this purpose. When parsing, the parameter is checked to be prime, causing excessive computation. This was patched in 2.19.4 and 3.3.0 to allow the prime parameter of the elliptic curve to be at most 521 bits. No known workarounds are available. Note that support for explicit encoding of elliptic curve parameters is deprecated in Botan. (CVE-2024-34703)

Botan is a C++ cryptography library. X.509 certificates can identify elliptic curves using either an object identifier or using explicit encoding of the parameters. A bug in the parsing of name constraint extensions in X.509 certificates meant that if the extension included both permitted subtrees and excluded subtrees, only the permitted subtree would be checked. If a certificate included a name which was permitted by the permitted subtree but also excluded by excluded subtree, it would be accepted. Fixed in versions 3.5.0 and 2.19.5.(CVE-2024-39312)

Botan is a C++ cryptography library. X.509 certificates can identify elliptic curves using either an object identifier or using explicit encoding of the parameters. Prior to versions 3.3.0 and 2.19.4, an attacker could present an ECDSA X.509 certificate using explicit encoding where the parameters are very large. The proof of concept used a 16Kbit prime for this purpose. When parsing, the parameter is checked to be prime, causing excessive computation. This was patched in 2.19.4 and 3.3.0 to allow the prime parameter of the elliptic curve to be at most 521 bits. No known workarounds are available. Note that support for explicit encoding of elliptic curve parameters is deprecated in Botan.

Botan is a C++ cryptography library. X.509 certificates can identify elliptic curves using either an object identifier or using explicit encoding of the parameters. Prior to versions 3.3.0 and 2.19.4, an attacker could present an ECDSA X.509 certificate using explicit encoding where the parameters are very large. The proof of concept used a 16Kbit prime for this purpose. When parsing, the parameter is checked to be prime, causing excessive computation. This was patched in 2.19.4 and 3.3.0 to allow the prime parameter of the elliptic curve to be at most 521 bits. No known workarounds are available. Note that support for explicit encoding of elliptic curve parameters is deprecated in Botan.

Botan is a C++ cryptography library. X.509 certificates can identify elliptic curves using either an object identifier or using explicit encoding of the parameters. Prior to versions 3.3.0 and 2.19.4, an attacker could present an ECDSA X.509 certificate using explicit encoding where the parameters are very large. The proof of concept used a 16Kbit prime for this purpose. When parsing, the parameter is checked to be prime, causing excessive computation. This was patched in 2.19.4 and 3.3.0 to allow the prime parameter of the elliptic curve to be at most 521 bits. No known workarounds are available. Note that support for explicit encoding of elliptic curve parameters is deprecated in Botan.

An attacker could present an ECDSA X.509 certificate using explicit encoding where the parameters are very large. When parsing, the parameter is checked to be prime, causing excessive computation. This was patched in 2.19.4 and 3.3.0 to allow the prime parameter of the elliptic curve to be at most 521 bits. No known workarounds are available. Note that support for explicit encoding of elliptic curve parameters is deprecated in Botan.

This update for Botan fixes the following issues:

Update to 2.19.5:

• Fix multiple Denial of service attacks due to X.509 cert processing:
• CVE-2024-34702 - boo#1227238
• CVE-2024-34703 - boo#1227607
• CVE-2024-39312 - boo#1227608
• Fix a crash in OCB
• Fix a test failure in compression with certain versions of zlib
• Fix some iterator debugging errors in TLS CBC decryption.
• Avoid a miscompilation in ARIA when using XCode 14

These are all security issues fixed in the MozillaThunderbird-115.12.2-1.1 package on the GA media of openSUSE Tumbleweed.

These are all security issues fixed in the Botan-doc-2.19.5-1.1 package on the GA media of openSUSE Tumbleweed.

This update for MozillaThunderbird fixes the following issues:

Security fixes:

• CVE-2024-34703: Fixed denial of service due to overly large elliptic curve parameters in Botan (bsc#1227239)

Other fixes:

• Mozilla Thunderbird 115.12.1
  • 115.12.0 got pulled because of upstream automation process errors and Windows installer signing changes. No code changes, changelog is the same as 115.12.0 (bsc#1226495)

This update for MozillaThunderbird fixes the following issues:

Mozilla Thunderbird 153.2:

• fixed: Deleting an Exchange account retained the outgoing server settings
• fixed: Thunderbird upgrade disabled Settings menu for versions before macOS 13
• fixed: Windows jump list menu no longer functioned correctly
• fixed: Security fixes MFSA 2026-88 (bsc#1278001):
• CVE-2026-84639 Uninitialized memory in MIME parsing
• CVE-2026-84640 One byte overflow read in mail parser
• CVE-2026-84641 Information disclosure due to malicious IMAP server response
• CVE-2026-84637 Calendar invitation attachments could launch local executables
• CVE-2026-84642 Allowed UNC hostnames for attachments interpreted as a regular expression
• CVE-2026-75874 Sandbox escape in the Remote Settings Client component
• CVE-2026-84118 Use-after-free in the JavaScript: GC component
• CVE-2026-84119 Sandbox escape due to use-after-free in the DOM: Navigation component
• CVE-2026-84120 Use-after-free in the Audio/Video component
• CVE-2026-84121 Sandbox escape due to use-after-free in the DOM: Security component
• CVE-2026-84122 Use-after-free in the Audio/Video component
• CVE-2026-84123 Privilege escalation due to use-after-free in the Graphics: WebGPU component
• CVE-2026-84124 Use-after-free in the DOM: Core & HTML component
• CVE-2026-84125 Use-after-free in the DOM: Core & HTML component
• CVE-2026-74952 Privilege escalation in the Application Update component
• CVE-2026-84129 Site isolation issue in the DOM: Navigation component
• CVE-2026-84130 Information disclosure in the Graphics: WebGPU component
• CVE-2026-84131 Privilege escalation due to invalid pointer in the Graphics component
• CVE-2026-84132 Information disclosure in the Networking: HTTP component
• CVE-2026-84133 Site isolation issue in the DOM: Push Subscriptions component
• CVE-2026-84134 Other issue in the Profile Backup component
• CVE-2026-84136 Other issue in the DOM: Navigation component
• CVE-2026-84137 Spoofing issue in the DOM: Core & HTML component
• CVE-2026-84139 Clickjacking issue in the DOM: Events component
• CVE-2026-84140 Site isolation issue in the DOM: Navigation component
• CVE-2026-84141 Integer overflow in the Graphics: ImageLib component
• CVE-2026-84143 Internally found bugs fixed in Thunderbird 155, Thunderbird ESR 153.2 and Thunderbird ESR 140.15
• CVE-2026-84144 Internally found bugs fixed in Thunderbird 155 and Thunderbird ESR 153.2
• CVE-2026-84145 Internally found bugs fixed in Thunderbird 155, Thunderbird ESR 153.2 and Thunderbird ESR 140.15

• Mozilla Thunderbird 153.1.1

  • fixed: Thunderbird upgrade disabled composition toolbar
  • fixed: Draft was not preserved when encrypted message send failed
  • fixed: Account Hub prompted for calendar credentials after successful login
  • fixed: Thunderbird crash fixes
  • fixed: Folder compaction showed incorrect disk space recovery estimates
  • fixed: Thunderbird failed to launch GPU process

• Mozilla Thunderbird 153.1

  • fixed: Autoscroll icon was missing directional arrows in scrollable messages
  • fixed: Security fixes MFSA 2026-80 (bsc#1274867):
  • CVE-2026-74934 Site isolation issue in the Graphics: CanvasWebGL component
  • CVE-2026-74935 Privilege escalation in the DOM: Networking component
  • CVE-2026-74936 Use-after-free in the JavaScript: WebAssembly component
  • CVE-2026-74937 Use-after-free in the JavaScript: GC component
  • CVE-2026-74938 Mitigation bypass in the JavaScript: GC component
  • CVE-2026-74939 Privilege escalation in the DOM: Navigation component
  • CVE-2026-74940 Use-after-free in the Graphics: Text component
  • CVE-2026-74941 Privilege escalation in the Graphics:…

It was discovered that Botan could have compiler dependent operations induced under certain circumstances. An attacker could possibly use this issue to cause undefined behavior. (CVE-2024-50382, CVE-2024-50383)

Bing Shi discovered that Botan did not limit the size of certain inputs when checking primality and name constraints. An attacker could possibly use this issue to cause a denial of service. (CVE-2024-34702, CVE-2024-34703)

It was discovered that Botan did not correctly handle conflicting name constraints. An attacker could possibly use this issue to bypass authentication. (CVE-2024-39312)