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.

The remote Redhat Enterprise Linux 6 host has one or more packages installed that are affected by multiple vulnerabilities that have been acknowledged by the vendor but will not be patched.

  - libical: Use-after-free (CVE-2016-9584)

  - 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. (CVE-2016-5825)

  - 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.
    (CVE-2016-5826)

Note that Nessus has not tested for these issues but has instead relied on the package manager's report that the package is installed.

The remote Redhat Enterprise Linux 7 host has one or more packages installed that are affected by multiple vulnerabilities that have been acknowledged by the vendor but will not be patched.

  - libical: Use-after-free (CVE-2016-9584)

  - 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. (CVE-2016-5825)

  - 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.
    (CVE-2016-5826)

Note that Nessus has not tested for these issues but has instead relied on the package manager's report that the package is installed.

The remote Redhat Enterprise Linux 5 host has one or more packages installed that are affected by multiple vulnerabilities that have been acknowledged by the vendor but will not be patched.

  - libical: Heap buffer over-read in icaltime_from_string (CVE-2016-5827)

  - 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. (CVE-2016-5825)

  - 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.
    (CVE-2016-5826)

Note that Nessus has not tested for these issues but has instead relied on the package manager's report that the package is installed.

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
199282	RHEL 6 : libical (Unpatched Vulnerability)	Nessus	Red Hat Local Security Checks	critical
199279	RHEL 7 : libical (Unpatched Vulnerability)	Nessus	Red Hat Local Security Checks	critical
199258	RHEL 5 : libical (Unpatched Vulnerability)	Nessus	Red Hat Local Security Checks	high
106130	SUSE SLES11 Security Update : Recommended update for libical (SUSE-SU-2018:0119-1)	Nessus	SuSE Local Security Checks	critical

Detections

Analytics

CVE-2016-5826

high

Tenable Plugins

critical

critical

high

critical