The remote Debian 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-3575 advisory.

    -------------------------------------------------------------------------     Debian LTS Advisory DLA-3575-1                debian-lts@lists.debian.org     https://www.debian.org/lts/security/                        Helmut Grohne     September 20, 2023                            https://wiki.debian.org/LTS
    -------------------------------------------------------------------------

    Package        : python2.7     Version        : 2.7.16-2+deb10u3     CVE ID         : CVE-2021-23336 CVE-2022-0391 CVE-2022-48560 CVE-2022-48565                      CVE-2022-48566 CVE-2023-24329 CVE-2023-40217

    This update fixes multiple vulnerabilities concerning the urlparse module as     well as vulnerabilities concerning the heapq, hmac, plistlib and ssl modules.

    CVE-2021-23336

        Python was vulnerable to Web Cache Poisoning via urlparse.parse_qsl and         urlparse.parse_qs by using a vector called parameter cloaking. When the         attacker can separate query parameters using a semicolon (;), they can         cause a difference in the interpretation of the request between the proxy         (running with default configuration) and the server. This can result in         malicious requests being cached as completely safe ones, as the proxy would         usually not see the semicolon as a separator, and therefore would not         include it in a cache key of an unkeyed parameter.

    CVE-2022-0391

        The urlparse module helps break Uniform Resource Locator (URL) strings into         components. The issue involves how the urlparse method does not sanitize         input and allows characters like '\r' and '\n' in the URL path.  This flaw         allows an attacker to input a crafted URL, leading to injection attacks.

    CVE-2022-48560

        A use-after-free exists in Python via heappushpop in heapq.

    CVE-2022-48565

        An XML External Entity (XXE) issue was discovered in Python.  The plistlib         module no longer accepts entity declarations in XML plist files to avoid         XML vulnerabilities.

    CVE-2022-48566

        An issue was discovered in compare_digest in Lib/hmac.py in Python.
        Constant-time-defeating optimisations were possible in the accumulator         variable in hmac.compare_digest.

    CVE-2023-24329

        An issue in the urlparse component of Python allows attackers to bypass         blocklisting methods by supplying a URL that starts with blank characters.

    CVE-2023-40217

        The issue primarily affects servers written in Python (such as HTTP         servers) that use TLS client authentication. If a TLS server-side socket is         created, receives data into the socket buffer, and then is closed quickly,         there is a brief window where the SSLSocket instance will detect the socket         as not connected and won't initiate a handshake, but buffered data will         still be readable from the socket buffer.  This data will not be         authenticated if the server-side TLS peer is expecting client certificate         authentication, and is indistinguishable from valid TLS stream data. Data         is limited in size to the amount that will fit in the buffer. (The TLS         connection cannot directly be used for data exfiltration because the         vulnerable code path requires that the connection be closed on         initialization of the SSLSocket.)


    For Debian 10 buster, these problems have been fixed in version     2.7.16-2+deb10u3.

    We recommend that you upgrade your python2.7 packages.

    For the detailed security status of python2.7 please refer to     its security tracker page at:
    https://security-tracker.debian.org/tracker/python2.7

    Further information about Debian LTS security advisories, how to apply     these updates to your system and frequently asked questions can be     found at: https://wiki.debian.org/LTS     Attachment:
    signature.asc     Description: PGP signature

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Detections

Analytics

Debian dla-3575 : idle-python2.7 - security update

critical Nessus Plugin ID 181697

Version 1.1

Version 1.0

Version 1.1 Jan 22, 2025, 5:44 PM CVSS metrics ("Cvssv4 score" set to 9.3) CVSS metrics ("Cvssv4 threat vector" set to "CVSS:4.0/E:P") CVSS metrics ("Cvssv4 vector" set to "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N") Plugin metadata Plugin Feed: 202501221744
Version 1.0 Sep 21, 2023, 4:12 AM New Plugin Feed: 202309210412