Several vulnerabilities have been fixed in the GNU C Library, glibc.
The first vulnerability listed below is considered to have critical impact.
CVE-2015-7547 The Google Security Team and Red Hat discovered that the glibc host name resolver function, getaddrinfo, when processing AF_UNSPEC queries (for dual A/AAAA lookups), could mismanage its internal buffers, leading to a stack-based buffer overflow and arbitrary code execution. This vulnerability affects most applications which perform host name resolution using getaddrinfo, including system services.
CVE-2015-8776 Adam Nielsen discovered that if an invalid separated time value is passed to strftime, the strftime function could crash or leak information. Applications normally pass only valid time information to strftime; no affected applications are known.
CVE-2015-8778 Szabolcs Nagy reported that the rarely-used hcreate and hcreate_r functions did not check the size argument properly, leading to a crash (denial of service) for certain arguments. No impacted applications are known at this time.
CVE-2015-8779 The catopen function contains several unbound stack allocations (stack overflows), causing it the crash the process (denial of service). No applications where this issue has a security impact are currently known.
While it is only necessary to ensure that all processes are not using the old glibc anymore, it is recommended to reboot the machines after applying the security upgrade.
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory DSA-3481. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(88768);
script_version("2.15");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/11");
script_cve_id("CVE-2015-7547", "CVE-2015-8776", "CVE-2015-8778", "CVE-2015-8779");
script_xref(name:"DSA", value:"3481");
script_xref(name:"TRA", value:"TRA-2017-08");
script_xref(name:"IAVA", value:"2016-A-0053");
script_name(english:"Debian DSA-3481-1 : glibc - security update");
script_summary(english:"Checks dpkg output for the updated package");
script_set_attribute(
attribute:"synopsis",
value:"The remote Debian host is missing a security-related update."
);
script_set_attribute(
attribute:"description",
value:
"Several vulnerabilities have been fixed in the GNU C Library, glibc.
The first vulnerability listed below is considered to have critical
impact.
- CVE-2015-7547
The Google Security Team and Red Hat discovered that the
glibc host name resolver function, getaddrinfo, when
processing AF_UNSPEC queries (for dual A/AAAA lookups),
could mismanage its internal buffers, leading to a
stack-based buffer overflow and arbitrary code
execution. This vulnerability affects most applications
which perform host name resolution using getaddrinfo,
including system services.
- CVE-2015-8776
Adam Nielsen discovered that if an invalid separated
time value is passed to strftime, the strftime function
could crash or leak information. Applications normally
pass only valid time information to strftime; no
affected applications are known.
- CVE-2015-8778
Szabolcs Nagy reported that the rarely-used hcreate and
hcreate_r functions did not check the size argument
properly, leading to a crash (denial of service) for
certain arguments. No impacted applications are known at
this time.
- CVE-2015-8779
The catopen function contains several unbound stack
allocations (stack overflows), causing it the crash the
process (denial of service). No applications where this
issue has a security impact are currently known.
While it is only necessary to ensure that all processes are not using
the old glibc anymore, it is recommended to reboot the machines after
applying the security upgrade."
);
script_set_attribute(
attribute:"see_also",
value:"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=812441"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=812445"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=812455"
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2015-7547"
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2015-8776"
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2015-8778"
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2015-8779"
);
script_set_attribute(
attribute:"see_also",
value:"https://packages.debian.org/source/jessie/glibc"
);
script_set_attribute(
attribute:"see_also",
value:"https://www.debian.org/security/2016/dsa-3481"
);
script_set_attribute(
attribute:"see_also",
value:"https://www.tenable.com/security/research/tra-2017-08"
);
script_set_attribute(
attribute:"solution",
value:
"Upgrade the glibc packages.
For the stable distribution (jessie), these problems have been fixed
in version 2.19-18+deb8u3."
);
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:glibc");
script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:8.0");
script_set_attribute(attribute:"patch_publication_date", value:"2016/02/16");
script_set_attribute(attribute:"in_the_news", value:"true");
script_set_attribute(attribute:"plugin_publication_date", value:"2016/02/17");
script_set_attribute(attribute:"stig_severity", value:"I");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2016-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_family(english:"Debian Local Security Checks");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/Debian/release", "Host/Debian/dpkg-l");
exit(0);
}
include("audit.inc");
include("debian_package.inc");
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Debian/release")) audit(AUDIT_OS_NOT, "Debian");
if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);
flag = 0;
if (deb_check(release:"8.0", prefix:"glibc-doc", reference:"2.19-18+deb8u3")) flag++;
if (deb_check(release:"8.0", prefix:"glibc-source", reference:"2.19-18+deb8u3")) flag++;
if (deb_check(release:"8.0", prefix:"libc-bin", reference:"2.19-18+deb8u3")) flag++;
if (deb_check(release:"8.0", prefix:"libc-dev-bin", reference:"2.19-18+deb8u3")) flag++;
if (deb_check(release:"8.0", prefix:"libc6", reference:"2.19-18+deb8u3")) flag++;
if (deb_check(release:"8.0", prefix:"libc6-amd64", reference:"2.19-18+deb8u3")) flag++;
if (deb_check(release:"8.0", prefix:"libc6-dbg", reference:"2.19-18+deb8u3")) flag++;
if (deb_check(release:"8.0", prefix:"libc6-dev", reference:"2.19-18+deb8u3")) flag++;
if (deb_check(release:"8.0", prefix:"libc6-dev-amd64", reference:"2.19-18+deb8u3")) flag++;
if (deb_check(release:"8.0", prefix:"libc6-dev-i386", reference:"2.19-18+deb8u3")) flag++;
if (deb_check(release:"8.0", prefix:"libc6-dev-mips64", reference:"2.19-18+deb8u3")) flag++;
if (deb_check(release:"8.0", prefix:"libc6-dev-mipsn32", reference:"2.19-18+deb8u3")) flag++;
if (deb_check(release:"8.0", prefix:"libc6-dev-ppc64", reference:"2.19-18+deb8u3")) flag++;
if (deb_check(release:"8.0", prefix:"libc6-dev-s390", reference:"2.19-18+deb8u3")) flag++;
if (deb_check(release:"8.0", prefix:"libc6-dev-x32", reference:"2.19-18+deb8u3")) flag++;
if (deb_check(release:"8.0", prefix:"libc6-i386", reference:"2.19-18+deb8u3")) flag++;
if (deb_check(release:"8.0", prefix:"libc6-i686", reference:"2.19-18+deb8u3")) flag++;
if (deb_check(release:"8.0", prefix:"libc6-loongson2f", reference:"2.19-18+deb8u3")) flag++;
if (deb_check(release:"8.0", prefix:"libc6-mips64", reference:"2.19-18+deb8u3")) flag++;
if (deb_check(release:"8.0", prefix:"libc6-mipsn32", reference:"2.19-18+deb8u3")) flag++;
if (deb_check(release:"8.0", prefix:"libc6-pic", reference:"2.19-18+deb8u3")) flag++;
if (deb_check(release:"8.0", prefix:"libc6-ppc64", reference:"2.19-18+deb8u3")) flag++;
if (deb_check(release:"8.0", prefix:"libc6-s390", reference:"2.19-18+deb8u3")) flag++;
if (deb_check(release:"8.0", prefix:"libc6-x32", reference:"2.19-18+deb8u3")) flag++;
if (deb_check(release:"8.0", prefix:"libc6-xen", reference:"2.19-18+deb8u3")) flag++;
if (deb_check(release:"8.0", prefix:"locales", reference:"2.19-18+deb8u3")) flag++;
if (deb_check(release:"8.0", prefix:"locales-all", reference:"2.19-18+deb8u3")) flag++;
if (deb_check(release:"8.0", prefix:"multiarch-support", reference:"2.19-18+deb8u3")) flag++;
if (deb_check(release:"8.0", prefix:"nscd", reference:"2.19-18+deb8u3")) flag++;
if (flag)
{
if (report_verbosity > 0) security_hole(port:0, extra:deb_report_get());
else security_hole(0);
exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");
Vendor | Product | Version | CPE |
---|---|---|---|
debian | debian_linux | glibc | p-cpe:/a:debian:debian_linux:glibc |
debian | debian_linux | 8.0 | cpe:/o:debian:debian_linux:8.0 |
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-7547
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8776
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8778
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8779
bugs.debian.org/cgi-bin/bugreport.cgi?bug=812441
bugs.debian.org/cgi-bin/bugreport.cgi?bug=812445
bugs.debian.org/cgi-bin/bugreport.cgi?bug=812455
packages.debian.org/source/jessie/glibc
security-tracker.debian.org/tracker/CVE-2015-7547
security-tracker.debian.org/tracker/CVE-2015-8776
security-tracker.debian.org/tracker/CVE-2015-8778
security-tracker.debian.org/tracker/CVE-2015-8779
www.debian.org/security/2016/dsa-3481
www.tenable.com/security/research/tra-2017-08