Bug 1553355 (CVE-2018-0490) - CVE-2018-0490 tor: NULL pointer dereference via a misformatted relay descriptor
Summary: CVE-2018-0490 tor: NULL pointer dereference via a misformatted relay descriptor
Keywords:
Status: NEW
Alias: CVE-2018-0490
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1553356
Blocks:
TreeView+ depends on / blocked
 
Reported: 2018-03-08 18:07 UTC by Laura Pardo
Modified: 2019-09-29 14:35 UTC (History)
6 users (show)

Fixed In Version: tor 0.2.9.15, tor 0.3.1.10, tor 0.3.2.10, tor 0.3.3.3-alpha
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Description Laura Pardo 2018-03-08 18:07:41 UTC
An issue was discovered in Tor before 0.2.9.15, 0.3.1.x before 0.3.1.10, and 0.3.2.x before 0.3.2.10. The directory-authority protocol-list subprotocol implementation allows remote attackers to cause a denial of service (NULL pointer dereference and directory-authority crash) via a misformatted relay descriptor that is mishandled during voting.


References:
https://trac.torproject.org/projects/tor/ticket/25074
https://lists.torproject.org/pipermail/tor-announce/2018-March/000152.html
https://blog.torproject.org/new-stable-tor-releases-security-fixes-and-dos-prevention-03210-03110-02915

Comment 1 Laura Pardo 2018-03-08 18:08:23 UTC
Created tor tracking bugs for this issue:

Affects: epel-6 [bug 1553356]


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