MGASA-2019-0103 - Updated gnutls packages fix security vulnerability

Publication date: 07 Mar 2019
URL: https://advisories.mageia.org/MGASA-2019-0103.html
Type: security
Affected Mageia releases: 6
CVE: CVE-2018-16868

A Bleichenbacher type side-channel based padding oracle attack was found
in the way gnutls handles verification of RSA decrypted PKCS#1 v1.5 data.
An attacker who is able to run process on the same physical core as the
victim process, could use this to extract plaintext or in some cases
downgrade any TLS connections to a vulnerable server. (CVE-2018-16868)

References:
- https://bugs.mageia.org/show_bug.cgi?id=24066
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/thread/INZ7O52ANE3RPKUWDI3TKPVVHQNKHVKY/
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-16868

SRPMS:
- 6/core/gnutls-3.5.13-1.2.mga6

Mageia 2019-0103: gnutls security update

A Bleichenbacher type side-channel based padding oracle attack was found in the way gnutls handles verification of RSA decrypted PKCS#1 v1.5 data

Summary

A Bleichenbacher type side-channel based padding oracle attack was found in the way gnutls handles verification of RSA decrypted PKCS#1 v1.5 data. An attacker who is able to run process on the same physical core as the victim process, could use this to extract plaintext or in some cases downgrade any TLS connections to a vulnerable server. (CVE-2018-16868)

References

- https://bugs.mageia.org/show_bug.cgi?id=24066

- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/thread/INZ7O52ANE3RPKUWDI3TKPVVHQNKHVKY/

- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-16868

Resolution

MGASA-2019-0103 - Updated gnutls packages fix security vulnerability

SRPMS

- 6/core/gnutls-3.5.13-1.2.mga6

Severity
Publication date: 07 Mar 2019
URL: https://advisories.mageia.org/MGASA-2019-0103.html
Type: security
CVE: CVE-2018-16868

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