NULL pointer dereference in Bitlbee

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.

EPSS: 0.030 (85.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

References

  • cve@mitre.org (x_refsource_CONFIRM, Patch, Issue Tracking, Vendor Advisory)
  • cve@mitre.org (x_refsource_CONFIRM, Patch, Third Party Advisory)
  • cve@mitre.org (vdb-entry, x_refsource_BID)
  • cve@mitre.org (mailing-list, x_refsource_MLIST, Patch, Mailing List, Third Party Advisory)
  • cve@mitre.org (mailing-list, x_refsource_MLIST, Patch, Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2017-5668?
CVE-2017-5668 is a critical-severity vulnerability in Bitlbee, classified under NULL Pointer Dereference. CVSS score: 9.8/10. Published 2017-03-14.
How severe is CVE-2017-5668?
Critical severity. CVSS v3 base score is 9.8 out of 10.