CVE-2021-3345 — HIGH (7.8) — White Hats Nepal

Vulnerability Description

_gcry_md_block_write in cipher/hash-common.c in Libgcrypt version 1.9.0 has a heap-based buffer overflow when the digest final function sets a large count value. It is recommended to upgrade to 1.9.1 or later.

CVSS Score

7.8

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Gnupg	Libgcrypt	1.9.0
Oracle	Communications Billing And Revenue Management	12.0.0.3.0

Related Weaknesses (CWE)

CWE-787

References

https://bugs.gentoo.org/show_bug.cgi?id=767814Issue TrackingVendor Advisory
https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git%3Ba=commit%3Bh=512c0c75
https://gnupg.orgVendor Advisory
https://lists.gnupg.org/pipermail/gnupg-announce/2021q1/000455.htmlMailing ListVendor Advisory
https://lists.gnupg.org/pipermail/gnupg-announce/2021q1/000456.htmlMailing ListPatchVendor Advisory
https://www.oracle.com//security-alerts/cpujul2021.htmlThird Party Advisory
https://bugs.gentoo.org/show_bug.cgi?id=767814Issue TrackingVendor Advisory
https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git%3Ba=commit%3Bh=512c0c75
https://gnupg.orgVendor Advisory
https://lists.gnupg.org/pipermail/gnupg-announce/2021q1/000455.htmlMailing ListVendor Advisory
https://lists.gnupg.org/pipermail/gnupg-announce/2021q1/000456.htmlMailing ListPatchVendor Advisory
https://www.oracle.com//security-alerts/cpujul2021.htmlThird Party Advisory

FAQ

What is CVE-2021-3345?

CVE-2021-3345 is a vulnerability with a CVSS score of 7.8 (HIGH). _gcry_md_block_write in cipher/hash-common.c in Libgcrypt version 1.9.0 has a heap-based buffer overflow when the digest final function sets a large count value. It is recommended to upgrade to 1.9.1 ...

How severe is CVE-2021-3345?

CVE-2021-3345 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-3345?

Check the references section above for vendor advisories and patch information. Affected products include: Gnupg Libgcrypt, Oracle Communications Billing And Revenue Management.