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Debian: Security Advisory (DLA-2646-1)

🗓️ 05 May 2021 00:00:00Reported by Copyright (C) 2021 Greenbone AGType 
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The remote host is missing an update for the Debian 'subversion' package(s) announced via the DLA-2646-1 advisory. One security issue has been discovered in subversion. CVE-2020-17525: Subversion's mod_authz_svn module will crash if the server is using in-repository authz rules with the AuthzSVNReposRelativeAccessFile option and a client sends a request for a non-existing repository URL

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# SPDX-FileCopyrightText: 2021 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("1.3.6.1.4.1.25623.1.0.892646");
  script_cve_id("CVE-2020-17525");
  script_tag(name:"creation_date", value:"2021-05-05 03:00:07 +0000 (Wed, 05 May 2021)");
  script_version("2024-02-02T05:06:07+0000");
  script_tag(name:"last_modification", value:"2024-02-02 05:06:07 +0000 (Fri, 02 Feb 2024)");
  script_tag(name:"cvss_base", value:"4.3");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:N/I:N/A:P");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2021-03-23 16:08:50 +0000 (Tue, 23 Mar 2021)");

  script_name("Debian: Security Advisory (DLA-2646-1)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2021 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=DEB9");

  script_xref(name:"Advisory-ID", value:"DLA-2646-1");
  script_xref(name:"URL", value:"https://www.debian.org/lts/security/2021/DLA-2646-1");
  script_xref(name:"URL", value:"https://security-tracker.debian.org/tracker/subversion");
  script_xref(name:"URL", value:"https://wiki.debian.org/LTS");

  script_tag(name:"summary", value:"The remote host is missing an update for the Debian 'subversion' package(s) announced via the DLA-2646-1 advisory.");

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

  script_tag(name:"insight", value:"One security issue has been discovered in subversion:

CVE-2020-17525: Subversion's mod_authz_svn module will crash if the server is using in-repository authz rules with the AuthzSVNReposRelativeAccessFile option and a client sends a request for a non-existing repository URL. This can lead to disruption for users of the service.

For Debian 9 stretch, this problem has been fixed in version 1.9.5-1+deb9u6.

We recommend that you upgrade your subversion packages.

For the detailed security status of subversion please refer to its security tracker page at: [link moved to references]

Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: [link moved to references]");

  script_tag(name:"affected", value:"'subversion' package(s) on Debian 9.");

  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 == "DEB9") {

  if(!isnull(res = isdpkgvuln(pkg:"libapache2-mod-svn", ver:"1.9.5-1+deb9u6", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libsvn-dev", ver:"1.9.5-1+deb9u6", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libsvn-doc", ver:"1.9.5-1+deb9u6", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libsvn-java", ver:"1.9.5-1+deb9u6", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libsvn-perl", ver:"1.9.5-1+deb9u6", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libsvn1", ver:"1.9.5-1+deb9u6", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"python-subversion", ver:"1.9.5-1+deb9u6", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"ruby-svn", ver:"1.9.5-1+deb9u6", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"subversion", ver:"1.9.5-1+deb9u6", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"subversion-tools", ver:"1.9.5-1+deb9u6", rls:"DEB9"))) {
    report += res;
  }

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

exit(0);

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05 May 2021 00:00Current
7.5High risk
Vulners AI Score7.5
EPSS0.007
42
.json
Report