SB2017041305 - Improper Neutralization of Special Elements in Output Used by a Downstream Component in Wireshark
Published: April 13, 2017 Updated: August 4, 2020
Security Bulletin ID
SB2017041305
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Improper Neutralization of Special Elements in Output Used by a Downstream Component (CVE-ID: CVE-2017-7703)
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
In Wireshark 2.2.0 to 2.2.5 and 2.0.0 to 2.0.11, the IMAP dissector could crash, triggered by packet injection or a malformed capture file. This was addressed in epan/dissectors/packet-imap.c by calculating a line's end correctly.
Remediation
Install update from vendor's website.
References
- http://www.securityfocus.com/bid/97636
- http://www.securitytracker.com/id/1038262
- https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=13466
- https://code.wireshark.org/review/gitweb?p=wireshark.git;a=commit;h=671e32820ab29d41d712cc8a472eab9b672684d9
- https://lists.debian.org/debian-lts-announce/2019/01/msg00010.html
- https://security.gentoo.org/glsa/201706-12
- https://www.wireshark.org/security/wnpa-sec-2017-12.html