CVE-2002-0659

mediumpriority · track · 43EPSS 0.362 · 98 %ileexploit · functionalEUUS
grimoire priorityP1 · Urgent
Exploitable?
Public exploit
1 exploit · functional
Likely / severe?
36.2% (98th) EPSS
CVSS 5 · medium
Is it mine?
43 products
Check your exposure
Who says so?
3 sources
enisa_euvd · nvd · redhat_csaf

EPSS · scored 2026-10-27

The ASN1 library in OpenSSL 0.9.6d and earlier, and 0.9.7-beta2 and earlier, allows remote attackers to cause a denial of service via invalid encodings.

01

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

  • FixedRed Hat Linux 6.2redhat_csaf

    Because both client and server applications are affected by these vulnerabilities, we advise users to reboot their systems after installing these updates. Before applying this update, make sure all previously released errata relevant to your system have been applied. To update all RPMs for your particular architecture, run: rpm -Fvh [filenames] where [filenames] is a list of the RPMs you wish to upgrade. Only those RPMs which are currently installed will be updated. Those RPMs which are not installed but included in the list will not be updated. Note that you can also use wildcards (*.rpm) if your current directory *only* contains the desired RPMs. Please note that this update is also available via Red Hat Network. Many people find this an easier way to apply updates. To use Red Hat Network, launch the Red Hat Update Agent with the following command: up2date This will start an interactive process that will result in the appropriate RPMs being upgraded on your system.

    https://access.redhat.com/errata/RHSA-2002:160
  • FixedRed Hat Linux 7.0redhat_csaf

    Because both client and server applications are affected by these vulnerabilities, we advise users to reboot their systems after installing these updates. Before applying this update, make sure all previously released errata relevant to your system have been applied. To update all RPMs for your particular architecture, run: rpm -Fvh [filenames] where [filenames] is a list of the RPMs you wish to upgrade. Only those RPMs which are currently installed will be updated. Those RPMs which are not installed but included in the list will not be updated. Note that you can also use wildcards (*.rpm) if your current directory *only* contains the desired RPMs. Please note that this update is also available via Red Hat Network. Many people find this an easier way to apply updates. To use Red Hat Network, launch the Red Hat Update Agent with the following command: up2date This will start an interactive process that will result in the appropriate RPMs being upgraded on your system.

    https://access.redhat.com/errata/RHSA-2002:160
  • FixedRed Hat Linux 7.1redhat_csaf

    Because both client and server applications are affected by these vulnerabilities, we advise users to reboot their systems after installing these updates. Before applying this update, make sure all previously released errata relevant to your system have been applied. To update all RPMs for your particular architecture, run: rpm -Fvh [filenames] where [filenames] is a list of the RPMs you wish to upgrade. Only those RPMs which are currently installed will be updated. Those RPMs which are not installed but included in the list will not be updated. Note that you can also use wildcards (*.rpm) if your current directory *only* contains the desired RPMs. Please note that this update is also available via Red Hat Network. Many people find this an easier way to apply updates. To use Red Hat Network, launch the Red Hat Update Agent with the following command: up2date This will start an interactive process that will result in the appropriate RPMs being upgraded on your system.

    https://access.redhat.com/errata/RHSA-2002:160
  • FixedRed Hat Linux 7.2redhat_csaf

    Because both client and server applications are affected by these vulnerabilities, we advise users to reboot their systems after installing these updates. Before applying this update, make sure all previously released errata relevant to your system have been applied. To update all RPMs for your particular architecture, run: rpm -Fvh [filenames] where [filenames] is a list of the RPMs you wish to upgrade. Only those RPMs which are currently installed will be updated. Those RPMs which are not installed but included in the list will not be updated. Note that you can also use wildcards (*.rpm) if your current directory *only* contains the desired RPMs. Please note that this update is also available via Red Hat Network. Many people find this an easier way to apply updates. To use Red Hat Network, launch the Red Hat Update Agent with the following command: up2date This will start an interactive process that will result in the appropriate RPMs being upgraded on your system.

    https://access.redhat.com/errata/RHSA-2002:160
  • FixedRed Hat Linux 7.3redhat_csaf

    Because both client and server applications are affected by these vulnerabilities, we advise users to reboot their systems after installing these updates. Before applying this update, make sure all previously released errata relevant to your system have been applied. To update all RPMs for your particular architecture, run: rpm -Fvh [filenames] where [filenames] is a list of the RPMs you wish to upgrade. Only those RPMs which are currently installed will be updated. Those RPMs which are not installed but included in the list will not be updated. Note that you can also use wildcards (*.rpm) if your current directory *only* contains the desired RPMs. Please note that this update is also available via Red Hat Network. Many people find this an easier way to apply updates. To use Red Hat Network, launch the Red Hat Update Agent with the following command: up2date This will start an interactive process that will result in the appropriate RPMs being upgraded on your system.

    https://access.redhat.com/errata/RHSA-2002:160
  • FixedRed Hat Enterprise Linux AS (Advanced Server) version 2.1 redhat_csaf

    Because both client and server applications are affected by these vulnerabilities, we advise users to reboot their systems after installing these updates. Before applying this update, make sure all previously released errata relevant to your system have been applied. Please note that this update is only available via Red Hat Network. To use Red Hat Network, launch the Red Hat Update Agent with the following command: up2date This will start an interactive process that will result in the appropriate RPMs being upgraded on your system.

    https://access.redhat.com/errata/RHSA-2002:161
  • FixedRed Hat Linux Advanced Workstation 2.1redhat_csaf

    Because both client and server applications are affected by these vulnerabilities, we advise users to reboot their systems after installing these updates. Before applying this update, make sure all previously released errata relevant to your system have been applied. Please note that this update is only available via Red Hat Network. To use Red Hat Network, launch the Red Hat Update Agent with the following command: up2date This will start an interactive process that will result in the appropriate RPMs being upgraded on your system.

    https://access.redhat.com/errata/RHSA-2002:161
  • FixedRed Hat Stronghold 4redhat_csaf

    We have backported the security fixes for the versions of OpenSSL and mm included in Stronghold 4. The fixed packages are now available via the update agent service; run $ bin/agent from the Stronghold 4 install root to upgrade an existing Stronghold 4 installation to the new package versions. Due to a bug in the update agent, users of Solaris on Intel platforms should create a file "conf/update-agent.conf" in the install root, containing the following two lines: [agent] ignore: RPMPROB_FILTER_IGNOREARCH After the appropriate updates have been applied, it will be necessary to manually restart the server with the following commands: $ bin/stop-server $ bin/start-server

    https://access.redhat.com/errata/RHSA-2002:163
  • FixedRed Hat Stronghold 3redhat_csaf

    We have backported the security fixes for the versions of OpenSSL, mod_ssl and mm included in Stronghold 3. Stronghold 3.0 build code 3018 is now available which includes these fixes, and can be downloaded from http://stronghold.redhat.com/sh3/ For information on how to upgrade between releases of Stronghold 3.0, see http://stronghold.redhat.com/support/upgrade-sh3.xml

    https://access.redhat.com/errata/RHSA-2002:164
  • FixedRed Hat Stronghold 3redhat_csaf

    We have backported the fix for the version of OpenSSL included in Stronghold 3. Stronghold 3 build code 3019 is now available which includes this fix, and can be downloaded from http://stronghold.redhat.com/sh3/ For information on how to upgrade between releases of Stronghold 3, see http://stronghold.redhat.com/support/upgrade-sh3.xml

    https://access.redhat.com/errata/RHSA-2002:184
  • FixedRed Hat Stronghold 4redhat_csaf

    We have backported the security fixes for the versions of OpenSSL and mm included in Stronghold 4. The fixed packages are now available via the update agent service; run $ bin/agent from the Stronghold 4 install root to upgrade an existing Stronghold 4 installation to the new package versions. After upgrading Stronghold, the server must be completely restarted by running the following commands from the install root: $ bin/stop-server $ bin/start-server For more information on how to upgrade between releases of Stronghold 4, see http://stronghold.redhat.com/support/upgrade-sh4

    https://access.redhat.com/errata/RHSA-2002:193
02

cvss

Technical severity, 0–10. One row per scoring source.

5.0
010

base score 0–10 · higher = more severe · hover a vector to decode

v2.05mediumAV:N/AC:L/Au:N/C:N/I:N/A:Pprimary · NVD / NIST USexploitability 10 · impact 2.9
v2.05mediumAV:N/AC:L/Au:N/C:N/I:N/A:P/E:Hsecondary · CVSS-BT (t0sche)
03

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-20USLLM-inferred
04

exploits (1)

Public proof-of-concept and weaponised exploit code.

05

affected products (43)

Products and version ranges known to be affected.

showing 20 of 43
06

advisories (6)

Vendor and ecosystem advisories describing this.

  • RHSA-2002:160Red Hat Security Advisory: : Updated openssl packages fix protocol parsing bugs2002-08-06csaf · redhat_csafUS

    Updated OpenSSL packages are available for Red Hat Linux 6.2, 7, 7.1, 7.2, and 7.3. These updates fix multiple protocol parsing bugs which may be used in a denial of service (DoS) attack or cause SSL-enabled applications to crash.

  • RHSA-2002:161Red Hat Security Advisory: openssl security update2002-08-05csaf · redhat_csafUS

    Updated OpenSSL packages are available for Red Hat Linux Advanced Server. These updates fix multiple protocol parsing bugs, which may cause a denial of service (DoS) attack or cause SSL-enabled applications to crash. [Updated 06 Jan 2003] Added fixed packages for the ia64 architecture. [Updated 06 Feb 2003] Added fixed packages for Advanced Workstation 2.1

  • RHSA-2002:163Red Hat Security Advisory: openssl, mm security update for Stronghold2002-08-08csaf · redhat_csafUS

    Updated Apache packages are available which fix several serious buffer overflow vulnerabilities in OpenSSL and a local privilege escalation vulnerability in MM.

  • RHSA-2002:164Red Hat Security Advisory: openssl, mm, mod_ssl security update for Stronghold2002-07-31csaf · redhat_csafUS

    A new Stronghold 3 release is available which fixes several serious buffer overflow vulnerabilities in OpenSSL, and local privilege escalation vulnerabilities in MM and mod_ssl.

  • RHSA-2002:184Red Hat Security Advisory: openssl security update for Stronghold2002-08-19csaf · redhat_csafUS

    A new Stronghold 3 release is available which contains an updated fix for the OpenSSL ASN1 vulnerability.

  • RHSA-2002:193Red Hat Security Advisory: openssl security update for Stronghold2002-09-02csaf · redhat_csafUS

    A new Stronghold 4 release is available which contains an updated fix for the OpenSSL ASN1 vulnerability.

07

also known as (2)

Other names and identifiers for this entity.

08

sources

Which sources assert this record, and when.

enisa_euvdnvdredhat_csafNVDCVE.orgMITRE
published 2002-08-12modified 2026-06-16
09

references (16)

External citations — patches, advisories, analysis.

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