MGASA-2021-0180 - Updated tor packages fix security vulnerabilities

Publication date: 12 Apr 2021
URL: https://advisories.mageia.org/MGASA-2021-0180.html
Type: security
Affected Mageia releases: 7, 8
CVE: CVE-2021-28089,
     CVE-2021-28090

The dump_desc() function that we used to dump unparseable information to disk,
was called incorrectly in several places, in a way that could lead to excessive
CPU usage (CVE-2021-28089).

A bug in appending detached signatures to a pending consensus document could be
used to crash a directory authority (CVE-2021-28090).

References:
- https://bugs.mageia.org/show_bug.cgi?id=28628
- https://blog.torproject.org/new-releases-with-security-fixes-tor-03514-0448-and-0457/
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-28089
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-28090

SRPMS:
- 7/core/tor-0.3.5.14-1.mga7
- 8/core/tor-0.3.5.14-1.mga8

Mageia 2021-0180: tor security update

The dump_desc() function that we used to dump unparseable information to disk, was called incorrectly in several places, in a way that could lead to excessive CPU usage (CVE-2021-2...

Summary

The dump_desc() function that we used to dump unparseable information to disk, was called incorrectly in several places, in a way that could lead to excessive CPU usage (CVE-2021-28089).
A bug in appending detached signatures to a pending consensus document could be used to crash a directory authority (CVE-2021-28090).

References

- https://bugs.mageia.org/show_bug.cgi?id=28628

- https://blog.torproject.org/new-releases-with-security-fixes-tor-03514-0448-and-0457/

- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-28089

- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-28090

Resolution

MGASA-2021-0180 - Updated tor packages fix security vulnerabilities

SRPMS

- 7/core/tor-0.3.5.14-1.mga7

- 8/core/tor-0.3.5.14-1.mga8

Severity
Publication date: 12 Apr 2021
URL: https://advisories.mageia.org/MGASA-2021-0180.html
Type: security
CVE: CVE-2021-28089, CVE-2021-28090

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