Vulnerability Name:

CVE-2020-35573 (CCN-193493)

Assigned:2020-12-20
Published:2020-12-20
Updated:2022-04-26
Summary:srs2.c in PostSRSd before 1.10 allows remote attackers to cause a denial of service (CPU consumption) via a long timestamp tag in an SRS address.
CVSS v3 Severity:7.5 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
6.5 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
7.5 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
6.5 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
CVSS v2 Severity:5.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
7.8 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
Vulnerability Type:CWE-834
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2020-35573

Source: XF
Type: UNKNOWN
postsrsd-cve202035573-dos(193493)

Source: CCN
Type: PostSRSd GIT Repository
GitHub - roehling/postsrsd: Postfix Sender Rewriting Scheme daemon

Source: MISC
Type: Patch, Third Party Advisory
https://github.com/roehling/postsrsd/commit/4733fb11f6bec6524bb8518c5e1a699288c26bac

Source: CCN
Type: Debian Mailing List, Mon, 21 Dec 2020 00:16:43 +0200
postsrsd security update

Source: MLIST
Type: Mailing List, Third Party Advisory
[debian-lts-announce] 20201220 [SECURITY] [DLA 2502-1] postsrsd security update

Source: GENTOO
Type: Third Party Advisory
GLSA-202107-08

Vulnerable Configuration:Configuration 1:
  • cpe:/a:postsrsd_project:postsrsd:*:*:*:*:*:*:*:* (Version < 1.10)

    • Configuration 2:
  • cpe:/o:debian:debian_linux:9.0:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:postsrsd_project:postsrsd:1.10:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.opensuse.security:def:113165
    P
    		postsrsd-1.11-1.3 on GA media (Moderate)
    2022-01-17
    oval:org.opensuse.security:def:11164
    P
    		Security update for postrsd (Moderate)
    2021-12-30
    oval:org.opensuse.security:def:111529
    P
    		Security update for postrsd (Moderate)
    2021-12-30
    oval:org.opensuse.security:def:106588
    P
    		postsrsd-1.11-1.3 on GA media (Moderate)
    2021-10-01
    oval:org.opensuse.security:def:96474
    P
    		Security update for postsrsd (Moderate)
    2021-05-05
    oval:org.opensuse.security:def:109821
    P
    		Security update for postsrsd (Moderate)
    2021-05-05
    oval:org.opensuse.security:def:103164
    P
    		Security update for postsrsd (Moderate)
    2021-05-05
    oval:org.opensuse.security:def:11206
    P
    		Security update for postsrsd (Moderate)
    2021-05-05
    oval:org.opensuse.security:def:111359
    P
    		Security update for postsrsd (Moderate)
    2021-05-01
    BACK
    postsrsd_project postsrsd *
    debian debian linux 9.0
    postsrsd_prject postsrsd 1.10