MGASA-2022-0415 - Updated mbedtls packages fix security vulnerability

Publication date: 08 Nov 2022
URL: https://advisories.mageia.org/MGASA-2022-0415.html
Type: security
Affected Mageia releases: 8
CVE: CVE-2022-35409

An unauthenticated remote host could send an invalid ClientHello message in
which the declared length of the cookie extends past the end of the message.
A DTLS server with MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE enabled would read past
the end of the message up to the declared length of the cookie. This could
cause a buffer overread of up to 255 bytes on the heap in vulnerable DTLS
servers, which may lead to a crash or to information disclosure via the
cookie check function (CVE-2022-35409).

This issue has been patched, backporting a fix from upstream's 2.28.0 release.

References:
- https://bugs.mageia.org/show_bug.cgi?id=31058
- - https://github.com/Mbed-TLS/mbedtls/commit/e5af9fabf7d68e3807b6ea78792794b8352dbba2
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-35409

SRPMS:
- 8/core/mbedtls-2.16.12-1.1.mga8

Mageia 2022-0415: mbedtls security update

An unauthenticated remote host could send an invalid ClientHello message in which the declared length of the cookie extends past the end of the message

Summary

An unauthenticated remote host could send an invalid ClientHello message in which the declared length of the cookie extends past the end of the message. A DTLS server with MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE enabled would read past the end of the message up to the declared length of the cookie. This could cause a buffer overread of up to 255 bytes on the heap in vulnerable DTLS servers, which may lead to a crash or to information disclosure via the cookie check function (CVE-2022-35409).
This issue has been patched, backporting a fix from upstream's 2.28.0 release.

References

- https://bugs.mageia.org/show_bug.cgi?id=31058

- - https://github.com/Mbed-TLS/mbedtls/commit/e5af9fabf7d68e3807b6ea78792794b8352dbba2

- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-35409

Resolution

MGASA-2022-0415 - Updated mbedtls packages fix security vulnerability

SRPMS

- 8/core/mbedtls-2.16.12-1.1.mga8

Severity
Publication date: 08 Nov 2022
URL: https://advisories.mageia.org/MGASA-2022-0415.html
Type: security
CVE: CVE-2022-35409

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