Description
Botan is a C++ cryptography library. From version 2.3.0 to before version 3.11.0, during SM2 decryption, the code that checked the authentication code value (C3) failed to check that the encoded value was of the expected length prior to comparison. An invalid ciphertext can cause a heap over-read of up to 31 bytes, resulting in a crash or potentially other undefined behavior. This issue has been patched in version 3.11.0.
Details
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
Affected Packages
| Software | From version | Fixed in |
|---|---|---|
| botan3 | — | 3.11.0-r0 |
References
Similar Threats
- Unknown DEBIAN-CVE-2026-44378
- Unknown ALPINE-CVE-2026-34580
- Unknown ALPINE-CVE-2026-34582
- Unknown DEBIAN-CVE-2026-34582
- Unknown UBUNTU-CVE-2026-34580
Exploit Protection
Help block exploit attempts
BotEraser is designed to detect and help reduce malicious bot traffic that may target known vulnerabilities on your site.
Try BotEraser Free →No credit card required · Results in minutes
ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.