Bug 2461602 (CVE-2026-41898) - CVE-2026-41898 rust-openssl: rust-openssl: Buffer overflow via improper callback return size validation
Summary: CVE-2026-41898 rust-openssl: rust-openssl: Buffer overflow via improper callb...
Keywords:
Status: NEW
Alias: CVE-2026-41898
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2461789 2461790
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-04-24 18:01 UTC by OSIDB Bzimport
Modified: 2026-04-25 11:51 UTC (History)
0 users

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)

Description OSIDB Bzimport 2026-04-24 18:01:42 UTC 
rust-openssl provides OpenSSL bindings for the Rust programming language.  From 0.9.24 to before 0.10.78, the FFI trampolines behind SslContextBuilder::set_psk_client_callback, set_psk_server_callback, set_cookie_generate_cb, and set_stateless_cookie_generate_cb forwarded the user closure's returned usize directly to OpenSSL without checking it against the &mut [u8] that was handed to the closure. This can lead to buffer overflows and other unintended consequences. This vulnerability is fixed in 0.10.78.
Note You need to log in before you can comment on or make changes to this bug.