Debian: Security Advisory (DSA-3542-1)

# SPDX-FileCopyrightText: 2016 Greenbone AG
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-only

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.703542");
  script_cve_id("CVE-2016-3068", "CVE-2016-3069", "CVE-2016-3630");
  script_tag(name:"creation_date", value:"2016-04-04 22:00:00 +0000 (Mon, 04 Apr 2016)");
  script_version("2024-02-02T05:06:05+0000");
  script_tag(name:"last_modification", value:"2024-02-02 05:06:05 +0000 (Fri, 02 Feb 2024)");
  script_tag(name:"cvss_base", value:"6.8");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:P/I:P/A:P");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2016-04-15 16:21:35 +0000 (Fri, 15 Apr 2016)");

  script_name("Debian: Security Advisory (DSA-3542-1)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2016 Greenbone AG");
  script_family("Debian Local Security Checks");
  script_dependencies("gather-package-list.nasl");
  script_mandatory_keys("ssh/login/debian_linux", "ssh/login/packages", re:"ssh/login/release=DEB(7|8)");

  script_xref(name:"Advisory-ID", value:"DSA-3542-1");
  script_xref(name:"URL", value:"https://www.debian.org/security/2016/DSA-3542-1");
  script_xref(name:"URL", value:"https://security-tracker.debian.org/tracker/DSA-3542");

  script_tag(name:"summary", value:"The remote host is missing an update for the Debian 'mercurial' package(s) announced via the DSA-3542-1 advisory.");

  script_tag(name:"vuldetect", value:"Checks if a vulnerable package version is present on the target host.");

  script_tag(name:"insight", value:"Several vulnerabilities have been discovered in Mercurial, a distributed version control system. The Common Vulnerabilities and Exposures project identifies the following issues:

CVE-2016-3068

Blake Burkhart discovered that Mercurial allows URLs for Git subrepositories that could result in arbitrary code execution on clone.

CVE-2016-3069

Blake Burkhart discovered that Mercurial allows arbitrary code execution when converting Git repositories with specially crafted names.

CVE-2016-3630

It was discovered that Mercurial does not properly perform bounds-checking in its binary delta decoder, which may be exploitable for remote code execution via clone, push or pull.

For the oldstable distribution (wheezy), these problems have been fixed in version 2.2.2-4+deb7u2.

For the stable distribution (jessie), these problems have been fixed in version 3.1.2-2+deb8u2.

For the unstable distribution (sid), these problems have been fixed in version 3.7.3-1.

We recommend that you upgrade your mercurial packages.");

  script_tag(name:"affected", value:"'mercurial' package(s) on Debian 7, Debian 8.");

  script_tag(name:"solution", value:"Please install the updated package(s).");

  script_tag(name:"solution_type", value:"VendorFix");
  script_tag(name:"qod_type", value:"package");

  exit(0);
}

include("revisions-lib.inc");
include("pkg-lib-deb.inc");

release = dpkg_get_ssh_release();
if(!release)
  exit(0);

res = "";
report = "";

if(release == "DEB7") {

  if(!isnull(res = isdpkgvuln(pkg:"mercurial", ver:"2.2.2-4+deb7u2", rls:"DEB7"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"mercurial-common", ver:"2.2.2-4+deb7u2", rls:"DEB7"))) {
    report += res;
  }

  if(report != "") {
    security_message(data:report);
  } else if(__pkg_match) {
    exit(99);
  }
  exit(0);
}

if(release == "DEB8") {

  if(!isnull(res = isdpkgvuln(pkg:"mercurial", ver:"3.1.2-2+deb8u2", rls:"DEB8"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"mercurial-common", ver:"3.1.2-2+deb8u2", rls:"DEB8"))) {
    report += res;
  }

  if(report != "") {
    security_message(data:report);
  } else if(__pkg_match) {
    exit(99);
  }
  exit(0);
}

exit(0);