The icalproperty_new_clone function in libical 0.47 and 1.0 allows remote attackers to cause a denial of service (use-after-free) via a crafted ics file.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - The icalproperty_new_clone function in libical 0.47 and 1.0 allows remote attackers to cause a denial of     service (use-after-free) via a crafted ics file. (CVE-2016-5823)

Note that Nessus relies on the presence of the package as reported by the vendor.

The remote host is affected by the vulnerability described in GLSA-201904-02 (Libical: Multiple vulnerabilities)

    Multiple vulnerabilities have been discovered in Libical. Please review       the referenced CVE identifiers for details.
  Impact :

    Please review the referenced CVE identifiers for details.
  Workaround :

    There is no known workaround at this time.

This update for libical fixes the following issues: Security issues fixed :

  - CVE-2016-5823: The icalproperty_new_clone function in     libical 0.47 and 1.0 allows remote attackers to cause a     denial of service (use-after-free) via a crafted ics     file. (bnc#986632)

  - CVE-2016-5824: libical 1.0 allows remote attackers to     cause a denial of service (use-after-free) via a crafted     ics file. (bsc#986639)

  - CVE-2016-5825: The icalparser_parse_string function in     libical 0.47 and 1.0 allows remote attackers to cause a     denial of service (out-of-bounds heap read) via a     crafted ics file. (bsc#986642)

  - CVE-2016-5826: The parser_get_next_char function in     libical 0.47 and 1.0 allows remote attackers to cause a     denial of service (out-of-bounds heap read) by crafting     a string to the icalparser_parse_string function.
    (bsc#986658)

  - CVE-2016-5827: The icaltime_from_string function in     libical 0.47 and 1.0 allows remote attackers to cause a     denial of service (out-of-bounds heap read) via a     crafted string to the icalparser_parse_string function.
    (bsc#986631)

  - CVE-2016-9584: libical allows remote attackers to cause     a denial of service (use-after-free) and possibly read     heap memory via a crafted ics file. (bnc#1015964) Bug     fixes :

  - libical crashes while parsing timezones (bsc#1044995)

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

ID	Name	Product	Family	Severity
219888	Linux Distros Unpatched Vulnerability : CVE-2016-5823	Nessus	Misc.	medium
123576	GLSA-201904-02 : Libical: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	medium
106130	SUSE SLES11 Security Update : Recommended update for libical (SUSE-SU-2018:0119-1)	Nessus	SuSE Local Security Checks	critical

Detections

Analytics

CVE-2016-5823

medium

Tenable Plugins

medium

medium

critical