7.5 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
0.164 Low
EPSS
Percentile
96.0%
Multiple vulnerabilities have been discovered in Dulwich, a Python implementation of the file formats and protocols used by the Git version control system. The Common Vulnerabilities and Exposures project identifies the following problems :
CVE-2014-9706 It was discovered that Dulwich allows writing to files under .git/ when checking out working trees. This could lead to the execution of arbitrary code with the privileges of the user running an application based on Dulwich.
CVE-2015-0838 Ivan Fratric of the Google Security Team has found a buffer overflow in the C implementation of the apply_delta() function, used when accessing Git objects in pack files. An attacker could take advantage of this flaw to cause the execution of arbitrary code with the privileges of the user running a Git server or client based on Dulwich.
#%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-3206. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(82303);
script_version("1.6");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/11");
script_cve_id("CVE-2014-9706", "CVE-2015-0838");
script_bugtraq_id(73411);
script_xref(name:"DSA", value:"3206");
script_name(english:"Debian DSA-3206-1 : dulwich - 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:
"Multiple vulnerabilities have been discovered in Dulwich, a Python
implementation of the file formats and protocols used by the Git
version control system. The Common Vulnerabilities and Exposures
project identifies the following problems :
- CVE-2014-9706
It was discovered that Dulwich allows writing to files
under .git/ when checking out working trees. This could
lead to the execution of arbitrary code with the
privileges of the user running an application based on
Dulwich.
- CVE-2015-0838
Ivan Fratric of the Google Security Team has found a
buffer overflow in the C implementation of the
apply_delta() function, used when accessing Git objects
in pack files. An attacker could take advantage of this
flaw to cause the execution of arbitrary code with the
privileges of the user running a Git server or client
based on Dulwich."
);
script_set_attribute(
attribute:"see_also",
value:"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=780958"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=780989"
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2014-9706"
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2015-0838"
);
script_set_attribute(
attribute:"see_also",
value:"https://packages.debian.org/source/wheezy/dulwich"
);
script_set_attribute(
attribute:"see_also",
value:"https://www.debian.org/security/2015/dsa-3206"
);
script_set_attribute(
attribute:"solution",
value:
"Upgrade the dulwich packages.
For the stable distribution (wheezy), these problems have been fixed
in version 0.8.5-2+deb7u2.
For the upcoming stable distribution (jessie), these problems have
been fixed in version 0.9.7-3."
);
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
script_set_cvss_temporal_vector("CVSS2#E:ND/RL:OF/RC:C");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"exploit_available", value:"false");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:dulwich");
script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:7.0");
script_set_attribute(attribute:"patch_publication_date", value:"2015/03/28");
script_set_attribute(attribute:"plugin_publication_date", value:"2015/03/30");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2015-2021 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:"7.0", prefix:"python-dulwich", reference:"0.8.5-2+deb7u2")) flag++;
if (deb_check(release:"7.0", prefix:"python-dulwich-dbg", reference:"0.8.5-2+deb7u2")) 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 | 7.0 | cpe:/o:debian:debian_linux:7.0 |
debian | debian_linux | dulwich | p-cpe:/a:debian:debian_linux:dulwich |
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-9706
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-0838
bugs.debian.org/cgi-bin/bugreport.cgi?bug=780958
bugs.debian.org/cgi-bin/bugreport.cgi?bug=780989
packages.debian.org/source/wheezy/dulwich
security-tracker.debian.org/tracker/CVE-2014-9706
security-tracker.debian.org/tracker/CVE-2015-0838
www.debian.org/security/2015/dsa-3206