Vulnerability Name:

CVE-2021-31292 (CCN-206330)

Assigned:2021-04-08
Published:2021-04-08
Updated:2021-09-21
Summary:An integer overflow in CrwMap::encode0x1810 of Exiv2 0.27.3 allows attackers to trigger a heap-based buffer overflow and cause a denial of service (DOS) via crafted metadata.
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)
6.7 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:P/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
5.5 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H)
5.0 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
7.5 High (REDHAT CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
6.7 Medium (REDHAT 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:P/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
4.6 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:S/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
Vulnerability Type:CWE-190
CWE-125
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2021-31292

Source: XF
Type: UNKNOWN
exiv2-cve202131292-dos(206330)

Source: CCN
Type: Exiv2 GIT Repository
heap-buffer-overflow Read in Exiv2::Internal::CrwMap::encode #1530

Source: MISC
Type: Exploit, Issue Tracking, Patch, Third Party Advisory
https://github.com/Exiv2/exiv2/issues/1530

Source: MLIST
Type: Mailing List, Third Party Advisory
[debian-lts-announce] 20210830 [SECURITY] [DLA 2750-1] exiv2 security update

Source: FEDORA
Type: Mailing List, Third Party Advisory
FEDORA-2021-399f869889

Source: FEDORA
Type: Mailing List, Third Party Advisory
FEDORA-2021-cbaef8e2d5

Source: DEBIAN
Type: Third Party Advisory
DSA-4958

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2021-31292

Vulnerable Configuration:Configuration 1:
  • cpe:/a:exiv2:exiv2:0.27.3:-:*:*:*:*:*:*

    • Configuration 2:
  • cpe:/o:debian:debian_linux:9.0:*:*:*:*:*:*:*
  • OR cpe:/o:debian:debian_linux:10.0:*:*:*:*:*:*:*

    • Configuration 3:
  • cpe:/o:fedoraproject:fedora:33:*:*:*:*:*:*:*
  • OR cpe:/o:fedoraproject:fedora:34:*:*:*:*:*:*:*

    • Configuration RedHat 1:
  • cpe:/a:redhat:enterprise_linux:8:*:*:*:*:*:*:*

    • Configuration RedHat 2:
  • cpe:/a:redhat:enterprise_linux:8::appstream:*:*:*:*:*

    • Configuration RedHat 3:
  • cpe:/a:redhat:enterprise_linux:8::crb:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:exiv2:exiv2:0.27.1:*:*:*:*:*:*:*
  • OR cpe:/a:exiv2:exiv2:0.27.2:*:*:*:*:*:*:*
  • OR cpe:/a:exiv2:exiv2:0.27.4:rc1:*:*:*:*:*:*
  • OR cpe:/a:exiv2:exiv2:0.27.3:-:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.opensuse.security:def:630
    P
    		Security update for exiv2 (Important) (in QA)
    2022-09-29
    oval:com.redhat.rhsa:def:20214173
    P
    		RHSA-2021:4173: exiv2 security, bug fix, and enhancement update (Moderate)
    2021-11-09
    oval:com.redhat.rhsa:def:20214319
    P
    		RHSA-2021:4319: compat-exiv2-026 security update (Moderate)
    2021-11-09
    BACK
    exiv2 exiv2 0.27.3 -
    debian debian linux 9.0
    debian debian linux 10.0
    fedoraproject fedora 33
    fedoraproject fedora 34
    exiv2 exiv2 0.27.1
    exiv2 exiv2 0.27.2
    exiv2 exiv2 0.27.4 rc1
    exiv2 exiv2 0.27.3 -