Use-after-free vulnerability in bitlbee-libpurple before 3.5 allows remote servers to cause a denial of service (crash) or possibly execute arbitrary code by causing a file transfer connection to expire.

The remote Ubuntu 16.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-8977-1 advisory.

    It was discovered that BitlBee incorrectly handled file transfer connections that expired when built with     libpurple. A remote attacker could possibly use this issue to cause BitlBee to crash, resulting in a     denial of service, or possibly execute arbitrary code. (CVE-2016-10188)

    It was discovered that BitlBee incorrectly handled file transfer requests for contacts that were not in     the contact list. A remote attacker could possibly use this issue to cause BitlBee to crash, resulting in     a denial of service, or possibly execute arbitrary code. (CVE-2016-10189)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

It was discovered that bitlbee, an IRC to other chat networks gateway, contained issues that allowed a remote attacker to cause a denial of service (via application crash), or potentially execute arbitrary commands.

CVE-2017-5668 Fix for incomplete fix for 'NULL pointer dereference with file transfer request from unknown contacts'. (Though this package wasn't in Wheezy with this issue, I mention it here. The fix was done with the second patch for CVE-2016-10189)

CVE-2016-10189 NULL pointer dereference with file transfer request from unknown contacts.

CVE-2016-10188 deactivate any incoming file transfer for bitlbee This affects any libpurple protocol when used through BitlBee. It does not affect other libpurple-based clients such as pidgin.

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	Name	Product	Family	Type	Severity
375874	Ubuntu 16.04 LTS : BitlBee vulnerabilities (USN-8977-1)	Nessus	Ubuntu Local Security Checks	Local	critical
100178	Debian DSA-3853-1 : bitlbee - security update	Nessus	Debian Local Security Checks	Local	critical
97356	Debian DLA-832-1 : bitlbee security update	Nessus	Debian Local Security Checks	Local	critical

Detections

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CVE-2016-10188

critical

Tenable Plugins

critical

critical

critical