Vulnerability Details : CVE-2017-5668
bitlbee-libpurple before 3.5.1 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) and possibly execute arbitrary code via a file transfer request for a contact that is not in the contact list. NOTE: this vulnerability exists because of an incomplete fix for CVE-2016-10189.
Vulnerability category: Memory CorruptionExecute codeDenial of service
Exploit prediction scoring system (EPSS) score for CVE-2017-5668
Probability of exploitation activity in the next 30 days: 3.16%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 90 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2017-5668
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
|---|---|---|---|---|---|
|
7.5
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:P |
10.0
|
6.4
|
NIST |
|
9.8
|
CRITICAL | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2017-5668
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A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit.Assigned by: nvd@nist.gov (Primary)
References for CVE-2017-5668
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http://www.securityfocus.com/bid/95932
BitlBee Incomplete Fix CVE-2017-5668 Denial of Service Vulnerability
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http://www.openwall.com/lists/oss-security/2017/01/31/11
oss-security - Re: CVE Request - Remote DoS vulnerabilities in BitlBeeMailing List;Patch;Third Party Advisory
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http://www.openwall.com/lists/oss-security/2017/01/30/4
oss-security - CVE Request - Remote DoS vulnerabilities in BitlBeeMailing List;Patch;Third Party Advisory
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https://github.com/bitlbee/bitlbee/commit/30d598ce7cd3f136ee9d7097f39fa9818a272441
purple: Fix crash on ft requests from unknown contacts · bitlbee/bitlbee@30d598c · GitHubPatch;Third Party Advisory
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https://bugs.bitlbee.org/ticket/1282
#1282 (Null pointer dereference with file transfer request from unknown contacts) – BitlBeeIssue Tracking;Patch;Vendor Advisory
Products affected by CVE-2017-5668
- cpe:2.3:a:bitlbee:bitlbee:*:*:*:*:*:*:*:*
- cpe:2.3:a:bitlbee:bitlbee-libpurple:*:*:*:*:*:*:*:*