CVE-2016-2522: Buffer Overflow
First published: Sun Feb 28 2016(Updated: )
The dissect_ber_constrained_bitstring function in epan/dissectors/packet-ber.c in the ASN.1 BER dissector in Wireshark 2.0.x before 2.0.2 does not verify that a certain length is nonzero, which allows remote attackers to cause a denial of service (out-of-bounds read and application crash) via a crafted packet.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Wireshark Wireshark | =2.0.0 | |
| Wireshark Wireshark | =2.0.1 |
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Reference Links
- http://www.securitytracker.com/id/1035118
- http://www.wireshark.org/security/wnpa-sec-2016-02.html
- https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=11828
- https://code.wireshark.org/review/gitweb?p=wireshark.git;a=commit;h=9b2f3f7c5c9205381cb72e42b66e97d8ed3abf63
- https://security.gentoo.org/glsa/201604-05
- https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=9b2f3f7c5c9205381cb72e42b66e97d8ed3abf63
Frequently Asked Questions
What is the severity of CVE-2016-2522?
CVE-2016-2522 has a medium severity rating as it can cause denial of service through application crash.
How do I fix CVE-2016-2522?
To fix CVE-2016-2522, upgrade Wireshark to version 2.0.2 or later.
What versions of Wireshark are affected by CVE-2016-2522?
CVE-2016-2522 affects Wireshark versions 2.0.0 and 2.0.1.
What type of vulnerability is CVE-2016-2522?
CVE-2016-2522 is an out-of-bounds read vulnerability that can be exploited to crash the application.
Can CVE-2016-2522 be exploited remotely?
Yes, CVE-2016-2522 can be exploited remotely by attackers sending crafted ASN.1 BER packets.
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- agent/softwarecombine
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- collector/mitre-cve
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- agent/last-modified-date
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- vendor/wireshark
- canonical/wireshark wireshark
- version/wireshark wireshark/2.0.0
- version/wireshark wireshark/2.0.1