# Security Advisories/Examples

< Security Advisories

Related articles

- Arch CVE Monitoring Team
- CVE
- Security Advisories

This article gives examples and templates for the Arch Linux Security Advisories and CVE-related bugreports.

## Templates

This section will give you templates for security advisories and cve-related bugreports.

### Security Advisories

    Subject:
    [ASA-<YYYYMM-N>] <Package>: <Vulnerability Type>

    Body:
    Arch Linux Security Advisory ASA-YYYYMM-N
    =========================================

    Severity: Low, Medium, High, Critical
    Date    : YYYY-MM-DD
    CVE-ID  : <CVE-ID>
    Package : <package>
    Type    : <Vulnerability Type>
    Remote  : <Yes/No>
    Link    : https://wiki.archlinux.org/index.php/CVE

    Summary
    =======

    The package <package> before version <Arch Linux fixed version> is vulnerable to <Vulnerability type>.

    Resolution
    ==========

    Upgrade to <Arch Linux fixed version>.

    # pacman -Syu "<package>>=<Arch Linux fixed version>"

    The problem has been fixed upstream in version <upstream fixed version>.

    Workaround
    ==========

    <Is there a way to mitigate this vulnerability without upgrading?>

    Description
    ===========

    <Long description, for example from original advisory>.

    Impact
    ======

    <
    What is it that an attacker can do? Does this need existing
    pre-conditions to be exploited (valid credentials, physical access)?
    Is this remotely exploitable?
    >.

    References
    ==========

    <CVE-Link>
    <Upstream report>
    <Arch Linux Bug-Tracker>

### CVE-related bugreports

    Title: [<pkgname>][Security]<short description>
    Body:
    Summary
    =======
    <give a short summary about all CVEs>

    Guidance
    ========
    <give a short guidance for the maintainer.. what shall he/she do? include a patch? Just upgrade?>

    References
    ==========
    <links to patches (if not included in bugreport)>
    <links to CVE-descriptions>
    <links to other stuff that is maybe important>

## Examples

This section will give you examples for security advisories and cve-related bugreports. Every line beginning with `#` is a comment and is not part of the example.

### Security Advisory Example

    Arch Linux Security Advisory ASA-201511-11
    ==========================================

    Severity: Critical
    Date    : 2015-11-18
    CVE-ID  : CVE-2015-5317 CVE-2015-5318 CVE-2015-5319 CVE-2015-5320
              CVE-2015-5321 CVE-2015-5322 CVE-2015-5323 CVE-2015-5324
              CVE-2015-5325 CVE-2015-5326 CVE-2015-8103
    Package : jenkins
    Type    : multiple issues
    Remote  : Yes
    Link    : https://wiki.archlinux.org/index.php/CVE

    Summary
    =======

    The package jenkins before version 1.638-1 is vulnerable to multiple
    issues including but not limited to arbitrary code execution,
    information leakage, cross-side request forgery, XML external entity
    injection, access restriction bypass, cross-side scripting and directory
    traversal.

    Resolution
    ==========

    Upgrade to 1.638-1.

    # pacman -Syu "jenkins>=1.638-1"

    The problems have been fixed upstream in version 1.638.

    Workaround
    ==========

    None.

    Description
    ===========

    - CVE-2015-5317 (information leakage)

    The Jenkins UI allowed users to see the names of jobs and builds
    otherwise inaccessible to them on the "Fingerprints" pages if those
    shared file fingerprints with fingerprinted files in accessible jobs.

    - CVE-2015-5318 (cross-side request forgery)

    The salt used to generate the CSRF protection tokens was a publicly
    accessible value, allowing malicious users to circumvent CSRF protection
    by generating the correct token.

    - CVE-2015-5319 (XML external entity injection)

    When creating a job using the create-job CLI command, external entities
    are not discarded (nor processed). If these job configurations are
    processed by another user with an XML-aware tool (e.g. using
    get-job/update-job), information from that user's computer may be
    disclosed to Jenkins and the attacker.

    - CVE-2015-5320 (access restriction bypass)

    JNLP slave connections did not verify that the correct secret was
    supplied, which allowed malicious users to connect their own machines as
    slaves to Jenkins knowing only the name of the slave. This enables
    attackers to take over Jenkins (unless the slave-to-master security
    subsystem is enabled) or gain access to private data like keys and
    source code.

    - CVE-2015-5321 (information leakage)

    The CLI command overview and help pages in Jenkins were accessible
    without Overall/Read permission, resulting in disclosure of the names of
    configured slaves (and contents of other sidepanel widgets, if present)
    to unauthorized users.

    - CVE-2015-5322 (directory traversal)

    Access to the /jnlpJars/ URL was not limited to the specific JAR files
    users needed to access, allowing browsing directories and downloading
    other files in the Jenkins servlet resources, such as web.xml.

    - CVE-2015-5323 (access restriction bypass)

    API tokens of other users were exposed to admins by default. On
    instances that don't implicitly grant RunScripts permission to admins,
    this allowed admins to run scripts with another user's credentials.

    - CVE-2015-5324 (information leakage)

    The /queue/api URL could return information about items not accessible
    to the current user (such as parameter names and values, build names,
    project descriptions).

    - CVE-2015-5325 (access restriction bypass)

    Slaves connecting via JNLP were not subject to the optional
    slave-to-master access control documented at
    http://jenkins-ci.org/security-144 (CVE-2014-3665).

    - CVE-2015-5326 (cross-side scripting)

    Users with the permission to take slave nodes offline can enter
    arbitrary HTML that gets shown unescaped to users visiting the slave
    overview page.

    - CVE-2015-8103 (arbitrary code execution)

    Unsafe deserialization allows unauthenticated remote attackers to run
    arbitrary code on the Jenkins master.

    Impact
    ======

    A remote attacker is able to execution arbitrary code, disclose
    sensitive information, bypass the cross-side request forgery protection,
    perform XML external entity injection, bypass multiple access
    restrictions, perform a cross-side scripting attack and make use of a
    directory traversal issue to download arbitrary files.

    References
    ==========

    https://access.redhat.com/security/cve/CVE-2015-5317
    https://access.redhat.com/security/cve/CVE-2015-5318
    https://access.redhat.com/security/cve/CVE-2015-5319
    https://access.redhat.com/security/cve/CVE-2015-5320
    https://access.redhat.com/security/cve/CVE-2015-5321
    https://access.redhat.com/security/cve/CVE-2015-5322
    https://access.redhat.com/security/cve/CVE-2015-5323
    https://access.redhat.com/security/cve/CVE-2015-5324
    https://access.redhat.com/security/cve/CVE-2015-5325
    https://access.redhat.com/security/cve/CVE-2015-5326
    https://access.redhat.com/security/cve/CVE-2015-8103
    https://wiki.jenkins-ci.org/display/SECURITY/Jenkins+Security+Advisory+2015-11-11

### CVE-related bugreport example

Categories:

- Arch development
- Security