medium
6.5
CWE
122 787 119
Advisory Published
CVE Published
CVE Published
Updated

CVE-2022-3437: Buffer Overflow

First published: Mon Oct 24 2022(Updated: )

A heap-based buffer overflow vulnerability was found in Samba within the GSSAPI unwrap_des() and unwrap_des3() routines of Heimdal. The DES and Triple-DES decryption routines in the Heimdal GSSAPI library allow a length-limited write buffer overflow on malloc() allocated memory when presented with a maliciously small packet. This flaw allows a remote user to send specially crafted malicious data to the application, possibly resulting in a denial of service (DoS) attack.

Credit: Evgeny Legerov Intevydis secalert@redhat.com secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
Apple macOS Ventura<13
13
Samba Samba>=4.0.0<4.15.11
Samba Samba>=4.16.0<4.16.6
Samba Samba>=4.17.0<4.17.2
Fedoraproject Fedora=36
Fedoraproject Fedora=37
redhat/samba<4.15.11
4.15.11
redhat/samba<4.16.6
4.16.6
redhat/samba<4.17.2
4.17.2
debian/heimdal<=7.5.0+dfsg-3
7.5.0+dfsg-3+deb10u2
7.7.0+dfsg-2+deb11u3
7.8.git20221117.28daf24+dfsg-2
7.8.git20221117.28daf24+dfsg-3
debian/samba<=2:4.9.5+dfsg-5+deb10u3<=2:4.9.5+dfsg-5+deb10u4<=2:4.13.13+dfsg-1~deb11u5
2:4.17.12+dfsg-0+deb12u1
2:4.19.3+dfsg-2

Never miss a vulnerability like this again

Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.

Read MoreStart Free Trial

Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Peer vulnerabilities

(Found alongside the following vulnerabilities)

Frequently Asked Questions

  • What is the vulnerability ID for this issue?

    The vulnerability ID for this issue is CVE-2022-3437.

  • What software is affected by this vulnerability?

    The affected software includes Apple macOS Ventura, Samba, and Fedora.

  • What is the severity of CVE-2022-3437?

    The severity of CVE-2022-3437 is medium.

  • How does the vulnerability manifest?

    The vulnerability manifests as a heap-based buffer overflow in the GSSAPI unwrap_des() and unwrap_des3() routines of Heimdal.

  • Is there a fix or solution available for this vulnerability?

    Yes, remediation for this vulnerability is available through updates and patches provided by the respective vendors.

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2024 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203