CVE-2020-35679

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2020-35679
smtpd/table.c in OpenSMTPD before 6.8.0p1 lacks a certain regfree, which might allow attackers to trigger a "very significant" memory leak via messages to an instance that performs many regex lookups.

7.5 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

5.0 /10

CVSS v2.0 : MEDIUM

V2 Legend

Vector : AV:N/AC:L/Au:N/C:N/I:N/A:P

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References
Link Resource
https://github.com/openbsd/src/commit/79a034b4aed29e965f45a13409268290c9910043 Patch Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5LKTFBQCHGMVPR4IZWHQIYAPM5J3LN3J/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TYAYXRV2DM5K4RU7RHCDZSA2UF6VCTRC/
https://poolp.org/posts/2020-12-24/december-2020-opensmtpd-6.8.0p1-released-fixed-several-bugs-proposed-several-diffs-book-is-on-github/ Third Party Advisory
https://security.gentoo.org/glsa/202105-12 Third Party Advisory
https://www.mail-archive.com/misc%40opensmtpd.org/msg05188.html
https://github.com/openbsd/src/commit/79a034b4aed29e965f45a13409268290c9910043 Patch Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5LKTFBQCHGMVPR4IZWHQIYAPM5J3LN3J/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TYAYXRV2DM5K4RU7RHCDZSA2UF6VCTRC/
https://poolp.org/posts/2020-12-24/december-2020-opensmtpd-6.8.0p1-released-fixed-several-bugs-proposed-several-diffs-book-is-on-github/ Third Party Advisory
https://security.gentoo.org/glsa/202105-12 Third Party Advisory
https://www.mail-archive.com/misc%40opensmtpd.org/msg05188.html
Configurations

Configuration 1 (hide)

OR cpe:2.3:a:opensmtpd:opensmtpd:*:*:*:*:*:*:*:*
cpe:2.3:a:opensmtpd:opensmtpd:6.8.0:-:*:*:*:*:*:*
cpe:2.3:a:opensmtpd:opensmtpd:6.8.0:patch1-rc1:*:*:*:*:*:*

Configuration 2 (hide)

OR cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
History

21 Nov 2024, 05:27

Type Values Removed Values Added
References () https://github.com/openbsd/src/commit/79a034b4aed29e965f45a13409268290c9910043 - Patch, Third Party Advisory () https://github.com/openbsd/src/commit/79a034b4aed29e965f45a13409268290c9910043 - Patch, Third Party Advisory
References () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5LKTFBQCHGMVPR4IZWHQIYAPM5J3LN3J/ - () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5LKTFBQCHGMVPR4IZWHQIYAPM5J3LN3J/ -
References () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TYAYXRV2DM5K4RU7RHCDZSA2UF6VCTRC/ - () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TYAYXRV2DM5K4RU7RHCDZSA2UF6VCTRC/ -
References () https://poolp.org/posts/2020-12-24/december-2020-opensmtpd-6.8.0p1-released-fixed-several-bugs-proposed-several-diffs-book-is-on-github/ - Third Party Advisory () https://poolp.org/posts/2020-12-24/december-2020-opensmtpd-6.8.0p1-released-fixed-several-bugs-proposed-several-diffs-book-is-on-github/ - Third Party Advisory
References () https://security.gentoo.org/glsa/202105-12 - Third Party Advisory () https://security.gentoo.org/glsa/202105-12 - Third Party Advisory
References () https://www.mail-archive.com/misc%40opensmtpd.org/msg05188.html - () https://www.mail-archive.com/misc%40opensmtpd.org/msg05188.html -

07 Nov 2023, 03:22

Type Values Removed Values Added
References
  • {'url': 'https://www.mail-archive.com/misc@opensmtpd.org/msg05188.html', 'name': 'https://www.mail-archive.com/misc@opensmtpd.org/msg05188.html', 'tags': ['Release Notes', 'Third Party Advisory'], 'refsource': 'MISC'}
  • {'url': 'https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/5LKTFBQCHGMVPR4IZWHQIYAPM5J3LN3J/', 'name': 'FEDORA-2021-848fd34b0b', 'tags': ['Mailing List', 'Third Party Advisory'], 'refsource': 'FEDORA'}
  • {'url': 'https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TYAYXRV2DM5K4RU7RHCDZSA2UF6VCTRC/', 'name': 'FEDORA-2021-71fbdecdf8', 'tags': ['Mailing List', 'Third Party Advisory'], 'refsource': 'FEDORA'}
  • () https://www.mail-archive.com/misc%40opensmtpd.org/msg05188.html -
  • () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5LKTFBQCHGMVPR4IZWHQIYAPM5J3LN3J/ -
  • () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TYAYXRV2DM5K4RU7RHCDZSA2UF6VCTRC/ -
Information

Published : 2020-12-24 16:15

Updated : 2024-11-21 05:27

NVD link : CVE-2020-35679

Mitre link : CVE-2020-35679

CVE.ORG link : CVE-2020-35679

JSON object : View

Products Affected

opensmtpd

  • opensmtpd

fedoraproject

  • fedora
CWE
CWE-401

Missing Release of Memory after Effective Lifetime