- -------------------------------------------------------------------------
Debian LTS Advisory DLA-3449-1                debian-lts@lists.debian.org
https://www.debian.org/lts/security/                      Sylvain Beucler
June 08, 2023                                 https://wiki.debian.org/LTS
- -------------------------------------------------------------------------

Package        : openssl
Version        : 1.1.1n-0+deb10u5
CVE ID         : CVE-2023-0464 CVE-2023-0465 CVE-2023-0466 CVE-2023-2650
Debian Bug     : 1034720

Multiple vulnerabilities have been discovered in OpenSSL, a Secure
Sockets Layer toolkit.

CVE-2023-0464

    David Benjamin reported a flaw related to the verification of
    X.509 certificate chains that include policy constraints, which
    may result in denial of service.

CVE-2023-0465

    David Benjamin reported that invalid certificate policies in leaf
    certificates are silently ignored. A malicious CA could take
    advantage of this flaw to deliberately assert invalid certificate
    policies in order to circumvent policy checking on the certificate
    altogether.

CVE-2023-0466

    David Benjamin discovered that the implementation of the
    X509_VERIFY_PARAM_add0_policy() function does not enable the check
    which allows certificates with invalid or incorrect policies to
    pass the certificate verification (contrary to its documentation).

CVE-2023-2650

    It was discovered that processing malformed ASN.1 object
    identifiers or data may result in denial of service.

For Debian 10 buster, these problems have been fixed in version
1.1.1n-0+deb10u5.

We recommend that you upgrade your openssl packages.

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

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

Debian LTS: DLA-3449-1: openssl security update

June 8, 2023
Multiple vulnerabilities have been discovered in OpenSSL, a Secure Sockets Layer toolkit

Summary

CVE-2023-0464

David Benjamin reported a flaw related to the verification of
X.509 certificate chains that include policy constraints, which
may result in denial of service.

CVE-2023-0465

David Benjamin reported that invalid certificate policies in leaf
certificates are silently ignored. A malicious CA could take
advantage of this flaw to deliberately assert invalid certificate
policies in order to circumvent policy checking on the certificate
altogether.

CVE-2023-0466

David Benjamin discovered that the implementation of the
X509_VERIFY_PARAM_add0_policy() function does not enable the check
which allows certificates with invalid or incorrect policies to
pass the certificate verification (contrary to its documentation).

CVE-2023-2650

It was discovered that processing malformed ASN.1 object
identifiers or data may result in denial of service.

For Debian 10 buster, these problems have been fixed in version
1.1.1n-0+deb10u5.

We recommend that you upgrade your openssl packages.

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

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


Severity
Package : openssl
Version : 1.1.1n-0+deb10u5
CVE ID : CVE-2023-0464 CVE-2023-0465 CVE-2023-0466 CVE-2023-2650
Debian Bug : 1034720

Related News

30.Lock Globe Motherboard Esm H320
1 - 2 min read
As cybersecurity practitioners, we are no strangers to the constant threat of malicious actors and the importance of remaining vigilant to protect
22.Lock ScreenEffect Esm H320
1 - 2 min read
EndeavorOS Gemini is a captivating and charming desktop operating system based on Arch Linux. The new release includes a kernel upgrade, 3D graphics
25.@Sign Hook Keyboard Esm H320
1 min read
Cyber risk is increasing for individuals and organizations, making flexible and robust solutions for identifying spam and malware increasingly
19.Laptop Bed Esm H320
2 - 3 min read
The recently released Linux Kernel 6.9 brings forth a blend of crucial upgrades and enhancements, catering to the ever-evolving needs of the Linux
4.Lock AbstractDigital Esm H320
1 - 2 min read
Nmap 7.95 introduces myriad enhancements, primarily focusing on OS and service detection signatures. This reflects the dedication of the Nmap
5.ShakingHands Esm H320
3 - 5 min read
There has been a promising shift in the tech industry, with major companies pledging to release products with built-in security features. This
18.WifiCutout Landscape Esm H320
2 - 3 min read
A novel attack called TunnelVision has been discovered. It compromises the security of virtually all VPN apps, rendering their purpose useless. The
21.Globe RadiatingCode Esm H320
2 - 3 min read
The recent discovery of a backdoor in XZ Utils , a widely used Linux tool, raises concerns about the security of the open-source ecosystem. While

Get the Latest News & Insights

Sign up to get the latest security news affecting Linux and open source delivered straight to your inbox.

© 2024 Guardian Digital, Inc All Rights Reserved