Buffer overflow in Wireshark
CVE-2016-2522
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.021 (80.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 81st percentile — 80.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.021 · newest: 0.021 · change: 0.000
Affected products
- Wireshark — versions 2.0.0, 2.0.1
Weakness classification (CWE)
References
- www.wireshark.org/security/wnpa-sec-2016-02.html (Vendor Advisory)
- code.wireshark.org/review/gitweb
- bugs.wireshark.org/bugzilla/show_bug.cgi (Exploit, Vendor Advisory)
- security.gentoo.org/glsa/201604-05 (vendor-advisory)
- www.securitytracker.com/id/1035118 (vdb-entry)
Frequently asked questions
- What is CVE-2016-2522?
- CVE-2016-2522 is a medium-severity vulnerability in Wireshark, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 5.9/10. Published 2016-02-28.
- How severe is CVE-2016-2522?
- Medium severity. CVSS v3 base score is 5.9 out of 10.