Use After Free in Libical Project
CVE-2016-5824
libical 1.0 allows remote attackers to cause a denial of service (use-after-free) via a crafted ics file.
Vulnerability class: Use-After-Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.022 (81.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 82nd percentile — 81.6% 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: 0.022 · change: +0.001
Affected products
- Libical Project — versions 1.0
- Canonical Ubuntu Linux — versions 14.04, 16.04, 18.04
- Red Hat Enterprise Linux Desktop — versions 6.0, 7.0
- Red Hat Enterprise Linux Server — versions 6.0, 7.0
- Red Hat Enterprise Linux Server Aus — versions 7.6
- Red Hat Enterprise Linux Server Eus — versions 7.6
- Red Hat Enterprise Linux Server Tus — versions 7.6
- Red Hat Enterprise Linux Workstation — versions 6.0, 7.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/libical/libical/issues/235 (Patch, Third Party Advisory, Issue Tracking)
- usn.ubuntu.com/3897-1/ (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2019:0269 (vendor-advisory, Third Party Advisory)
- bugzilla.mozilla.org/show_bug.cgi (Issue Tracking)
- www.openwall.com/lists/oss-security/2017/01/20/16 (mailing-list, Patch, Mailing List, Third Party Advisory)
- github.com/libical/libical/issues/251 (Patch, Third Party Advisory, Issue Tracking)
- www.securityfocus.com/bid/91459 (VDB Entry, Third Party Advisory, vdb-entry)
- www.openwall.com/lists/oss-security/2016/06/25/4 (mailing-list, Mailing List, Third Party Advisory)
- github.com/libical/libical/issues/286 (Patch, Third Party Advisory, Issue Tracking)
- access.redhat.com/errata/RHSA-2019:0270 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2016-5824?
- CVE-2016-5824 is a medium-severity vulnerability in Libical Project, classified under Use After Free. CVSS score: 5.5/10. Published 2017-01-27.
- How severe is CVE-2016-5824?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2016-5824 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.