Vulnerability Name:

CVE-2013-4206 (CCN-86266)

Assigned:2013-08-06
Published:2013-08-06
Updated:2021-08-06
Summary:Heap-based buffer underflow in the modmul function in sshbn.c in PuTTY before 0.63 allows remote SSH servers to cause a denial of service (crash) and possibly trigger memory corruption or code execution via a crafted DSA signature, which is not properly handled when performing certain bit-shifting operations during modular multiplication.
CVSS v3 Severity:7.3 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)
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): Low
Integrity (I): Low
Availibility (A): Low
CVSS v2 Severity:6.8 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P)
5.0 Medium (Temporal CVSS v2 Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P/E:U/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
7.5 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P)
5.5 Medium (CCN Temporal CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P/E:U/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
Vulnerability Type:CWE-119
Vulnerability Consequences:Gain Access
References:Source: CCN
Type: tortoisegit GIT Repository
Release 1.8.5.0

Source: MITRE
Type: CNA
CVE-2013-4206

Source: SUSE
Type: UNKNOWN
openSUSE-SU-2013:1347

Source: CCN
Type: oss-sec mailing list, Tue, 06 Aug 2013 17:45:13 -0600
Re: CVE request: three additional flaws fixed in putty 0.63

Source: SECUNIA
Type: Vendor Advisory
54379

Source: CCN
Type: SA54415
FileZilla Client PuTTY Multiple Vulnerabilities

Source: SECUNIA
Type: UNKNOWN
54533

Source: CCN
Type: SA54599
TortoiseGit PuTTY PLink Multiple Integer Overflow Vulnerabilities

Source: CONFIRM
Type: Patch
http://svn.tartarus.org/sgt/putty/sshbn.c?sortby=date&r1=9977&r2=9976&pathrev=9977

Source: CCN
Type: PuTTY SVN Repository
Revision 9977

Source: CCN
Type: PuTTY Web Site
PuTTY Download Page

Source: CONFIRM
Type: Vendor Advisory
http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/vuln-modmul.html

Source: DEBIAN
Type: UNKNOWN
DSA-2736

Source: DEBIAN
Type: DSA-2736
putty -- several vulnerabilities

Source: MLIST
Type: UNKNOWN
[oss-security] 20130806 CVE request: three additional flaws fixed in putty 0.63

Source: CCN
Type: BID-61645
PuTTY 'modmul()' Function Buffer Underrun Vulnerability

Source: XF
Type: UNKNOWN
putty-cve20134206-underflow(86266)

Source: CCN
Type: FileZilla Web Site
FileZilla Client 3.7.3 released

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2013-4206

Vulnerable Configuration:Configuration 1:
  • cpe:/a:putty:putty:0.53:*:*:*:*:*:*:*
  • OR cpe:/a:putty:putty:0.52:*:*:*:*:*:*:*
  • OR cpe:/a:putty:putty:0.51:*:*:*:*:*:*:*
  • OR cpe:/a:putty:putty:0.50:*:*:*:*:*:*:*
  • OR cpe:/a:putty:putty:0.61:*:*:*:*:*:*:*
  • OR cpe:/a:putty:putty:0.60:*:*:*:*:*:*:*
  • OR cpe:/a:putty:putty:0.59:*:*:*:*:*:*:*
  • OR cpe:/a:putty:putty:0.58:*:*:*:*:*:*:*
  • OR cpe:/a:putty:putty:0.57:*:*:*:*:*:*:*
  • OR cpe:/a:putty:putty:0.45:*:*:*:*:*:*:*
  • OR cpe:/a:putty:putty:2010-06-01:r8967:*:*:development_snapshot:*:*:*
  • OR cpe:/a:putty:putty:0.49:*:*:*:*:*:*:*
  • OR cpe:/a:putty:putty:0.55:*:*:*:*:*:*:*
  • OR cpe:/a:simon_tatham:putty:*:*:*:*:*:*:*:* (Version <= 0.62)
  • OR cpe:/a:putty:putty:0.53b:*:*:*:*:*:*:*
  • OR cpe:/a:putty:putty:0.48:*:*:*:*:*:*:*
  • OR cpe:/a:putty:putty:0.54:*:*:*:*:*:*:*
  • OR cpe:/a:putty:putty:0.46:*:*:*:*:*:*:*
  • OR cpe:/a:putty:putty:0.47:*:*:*:*:*:*:*
  • OR cpe:/a:putty:putty:0.56:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:putty:putty:0.62:*:*:*:*:*:*:*
  • OR cpe:/a:filezilla-project:filezilla_client:3.7.2:*:*:*:*:*:*:*
  • OR cpe:/a:filezilla-project:filezilla_client:3.7.1.1:*:*:*:*:*:*:*
  • OR cpe:/a:filezilla-project:filezilla_client:3.7.1:-:*:*:*:*:*:*
  • OR cpe:/a:filezilla-project:filezilla_client:3.7.0.1:*:*:*:*:*:*:*
  • OR cpe:/a:filezilla-project:filezilla_client:3.7.0:-:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.opensuse.security:def:20134206
    V
    		CVE-2013-4206
    2022-06-30
    oval:org.opensuse.security:def:112227
    P
    		filezilla-3.23.0.2-1.1 on GA media (Moderate)
    2022-01-17
    oval:org.opensuse.security:def:105757
    P
    		filezilla-3.23.0.2-1.1 on GA media (Moderate)
    2021-10-01
    oval:org.mitre.oval:def:18299
    P
    		DSA-2736-1 putty - several
    2014-06-23
    oval:com.ubuntu.precise:def:20134206000
    V
    		CVE-2013-4206 on Ubuntu 12.04 LTS (precise) - medium.
    2013-08-19
    BACK
    simon_tatham putty 0.53
    putty putty 0.52
    putty putty 0.51
    putty putty 0.50
    putty putty 0.61
    putty putty 0.60
    putty putty 0.59
    putty putty 0.58
    putty putty 0.57
    putty putty 0.45
    putty putty 2010-06-01 r8967
    putty putty 0.49
    putty putty 0.55
    simon_tatham putty *
    putty putty 0.53b
    putty putty 0.48
    putty putty 0.54
    putty putty 0.46
    putty putty 0.47
    putty putty 0.56
    putty putty 0.62
    filezilla-project filezilla client 3.7.2
    filezilla-project filezilla client 3.7.1.1
    filezilla-project filezilla client 3.7.1 -
    filezilla-project filezilla client 3.7.0.1
    filezilla-project filezilla client 3.7.0 -