Vulnerability Details : CVE-2021-3345
_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.
Vulnerability category: OverflowMemory Corruption
Exploit prediction scoring system (EPSS) score for CVE-2021-3345
Probability of exploitation activity in the next 30 days: 0.05%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 20 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2021-3345
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|
|
7.2
|
HIGH | AV:L/AC:L/Au:N/C:C/I:C/A:C |
3.9
|
10.0
|
[email protected] |
|
7.8
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
1.8
|
5.9
|
[email protected] |
CWE ids for CVE-2021-3345
-
The product writes data past the end, or before the beginning, of the intended buffer.Assigned by: [email protected] (Primary)
References for CVE-2021-3345
-
https://bugs.gentoo.org/show_bug.cgi?id=767814
Issue Tracking;Vendor Advisory
-
https://gnupg.org
Vendor Advisory
-
https://lists.gnupg.org/pipermail/gnupg-announce/2021q1/000456.html
Mailing List;Patch;Vendor Advisory
-
https://www.oracle.com//security-alerts/cpujul2021.html
Third Party Advisory
-
https://lists.gnupg.org/pipermail/gnupg-announce/2021q1/000455.html
Mailing List;Vendor Advisory
-
https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git;a=commit;h=512c0c75276949f13b6373b5c04f7065af750b08
Mailing List;Patch;Third Party Advisory
Products affected by CVE-2021-3345
- cpe:2.3:a:oracle:communications_billing_and_revenue_management:12.0.0.3.0:*:*:*:*:*:*:*
- cpe:2.3:a:gnupg:libgcrypt:1.9.0:*:*:*:*:*:*:*