CVE-2016-5824: canonical ubuntu_linux Use After Free

Modified

AliasesUBUNTU-CVE-2016-5824DEBIAN-CVE-2016-5824

Published 27-01-2017Last modified 06-08-2024

Vulnerability summary

CVE-2016-5824 is a medium (CVSS 5.5) Use After Free vulnerability in canonical ubuntu_linux. EPSS estimates a 2.17% chance of exploitation in the next 30 days, higher than 82.3% of scored vulnerabilities.

Priority

Routine

Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?

CVSS score

5.5/10

010

Medium · v3.0 (NVD)

EPSS score

2.17%

0%100%

Low · 0.00 pp in 30 days

KEVNot listedNot listed by any tracked catalog.

RansomwareNot flaggedNo ransomware use recorded.

Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 10 · Related 6

DLA-959-1 MGASA-2018-0021 OPENSUSE-SU-2019:0249-1 OPENSUSE-SU-2024:10601-1 RHSA-2019:0269 RHSA-2019:0270+4 more

Timeline

27-01-2017
PublishedVulnerability first disclosed.
06-08-2024
Last modifiedVulnerability information updated.

Description

libical 1.0 allows remote attackers to cause a denial of service (use-after-free) via a crafted ics file.

CVSS metrics

4 scores · 3 sources · 2 versions

v3.05.5v2.04.3

EPSS trend

Probability

2.17%

Chance of exploitation in the next 30 days

Percentile

82%

Versus all other CVEs

30-day change

No change 0.00 pp

From 2.17% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs

CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

CWE-416Use After FreeThe product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

Affected systems

Version check

Known conditions: local access, no authentication, user interaction (CVSS vector). Other conditions: not stated in public data.

Redhat6 products

Show all 6

Ubuntu2 products

libicalAll versions (No fix recorded)
thunderbird< 1:60.5.1+build2-0ubuntu0.14.04.1 | < 1:60.5.1+build2-0ubuntu0.16.04.1 | < 1:60.5.1+build2-0ubuntu0.18.04.1

Canonical1 product

ubuntu_linuxEOL14.04 | 16.04 | 18.04 | 18.10

Debian1 product

thunderbird< 1:60.5.0-1

Libical_project1 product

libical1.0

5 vendors · 11 products

References

19 links

github.com/libical/libical/issues/235X Refsource MISCIssue TrackingPatchThird Party Advisory
usn.ubuntu.com/3897-1/Vendor AdvisoryX Refsource UBUNTUThird Party Advisory
access.redhat.com/errata/RHSA-2019:0269Vendor AdvisoryX Refsource REDHATThird Party Advisory
bugzilla.mozilla.org/show_bug.cgi?id=1275400X Refsource CONFIRMIssue Tracking
www.openwall.com/lists/oss-security/2017/01/20/16Mailing ListX Refsource MLISTPatchThird Party Advisory
github.com/libical/libical/issues/251X Refsource CONFIRMIssue TrackingPatchThird Party Advisory
www.securityfocus.com/bid/91459VDB EntryX Refsource BIDThird Party Advisory
www.openwall.com/lists/oss-security/2016/06/25/4Mailing ListX Refsource MLISTThird Party Advisory
github.com/libical/libical/issues/286X Refsource CONFIRMIssue TrackingPatchThird Party Advisory
access.redhat.com/errata/RHSA-2019:0270Vendor AdvisoryX Refsource REDHATThird Party Advisory

Show all 19 references

security.gentoo.org/glsa/201904-02Vendor AdvisoryX Refsource GENTOO
security.gentoo.org/glsa/201904-07Vendor AdvisoryX Refsource GENTOO
ubuntu.com/security/CVE-2016-5824REPORT
seclists.org/oss-sec/2016/q2/604REPORT
www.mozilla.org/en-US/security/advisories/mfsa2019-03/REPORT
ubuntu.com/security/notices/USN-3897-1Advisory
bugzilla.mozilla.org/attachment.cgi?id=8757553REPORT
www.cve.org/CVERecord?id=CVE-2016-5824REPORT
security-tracker.debian.org/tracker/CVE-2016-5824Advisory