CVE-2002-0082
highpriority · attend · 50EPSS 0.297 · 98 %ileexploit · functionalEUUSEPSS · scored 2026-10-27
The dbm and shm session cache code in mod_ssl before 2.8.7-1.3.23, and Apache-SSL before 1.3.22+1.46, does not properly initialize memory using the i2d_SSL_SESSION function, which allows remote attackers to use a buffer overflow to execute arbitrary code via a large client certificate that is signed by a trusted Certificate Authority (CA), which produces a large serialized session.
remediations
Vendor fix, mitigation, or workaround guidance, as published by each source.
A vendor fix is available.
- FixedRed Hat Linux 7.0redhat_csaf
Before applying this update, make sure to apply all previously released errata relevant to your system. 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. After applying these updates, you will need to restart an active server by performing the following: /etc/rc.d/init.d/httpd restart This step must be performed manually to keep SSL-capable servers from stalling when the server's key is password-protected.
https://access.redhat.com/errata/RHSA-2002:041 - FixedRed Hat Linux 7.1redhat_csaf
Before applying this update, make sure to apply all previously released errata relevant to your system. 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. After applying these updates, you will need to restart an active server by performing the following: /etc/rc.d/init.d/httpd restart This step must be performed manually to keep SSL-capable servers from stalling when the server's key is password-protected.
https://access.redhat.com/errata/RHSA-2002:041 - FixedRed Hat Linux 7.2redhat_csaf
Before applying this update, make sure to apply all previously released errata relevant to your system. 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. After applying these updates, you will need to restart an active server by performing the following: /etc/rc.d/init.d/httpd restart This step must be performed manually to keep SSL-capable servers from stalling when the server's key is password-protected.
https://access.redhat.com/errata/RHSA-2002:041
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.8–7.5
weaknesses
The CWE weakness classes this flaw belongs to.
exploits (6)
Public proof-of-concept and weaponised exploit code.
- EDB-21671Apache mod_ssl < 2.8.7 OpenSSL - 'OpenFuck.c' Remote Buffer Overflowfunctional · exploit_db
- EDB-764Apache mod_ssl < 2.8.7 OpenSSL - 'OpenFuckV2.c' Remote Buffer Overflow (1)functional · exploit_db
- ratiros01/CVE-2002-0082CVE-2002-0082PoC · poc_in_github
affected products (18)
Products and version ranges known to be affected.
advisories (1)
Vendor and ecosystem advisories describing this.
- RHSA-2002:041Red Hat Security Advisory: : Updated mod_ssl packages available2002-03-08csaf · redhat_csafUS
Updated mod_ssl packages for Red Hat Linux 7, 7.1, and 7.2 are available which close a buffer overflow in mod_ssl.
also known as (2)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (36)
External citations — patches, advisories, analysis.
- http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000465enisa_euvd
- http://ftp.support.compaq.com/patches/.new/html/SSRT0817.shtmlenisa_euvd
- http://marc.info/?l=bugtraq&m=101518491916936&w=2enisa_euvd
- http://marc.info/?l=bugtraq&m=101528358424306&w=2enisa_euvd
- http://online.securityfocus.com/archive/1/258646enisa_euvd
- http://packetstormsecurity.com/files/153567/Apache-mod_ssl-OpenSSL-Remote-Buffer-Overflow.htmlenisa_euvd
- http://www.apacheweek.com/issues/02-03-01#securityenisa_euvd
- http://www.calderasystems.com/support/security/advisories/CSSA-2002-011.0.txtenisa_euvd
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