Vulnerability Name:

CVE-2021-42716 (CCN-211857)

Assigned:2021-07-14
Published:2021-07-14
Updated:2022-05-13
Summary:An issue was discovered in stb stb_image.h 2.27. The PNM loader incorrectly interpreted 16-bit PGM files as 8-bit when converting to RGBA, leading to a buffer overflow when later reinterpreting the result as a 16-bit buffer. An attacker could potentially have crashed a service using stb_image, or read up to 1024 bytes of non-consecutive heap data without control over the read location.
CVSS v3 Severity:7.1 High (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H)
6.3 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H/E:U/RL:U/RC:R)
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): High
Integrity (I): None
Availibility (A): High
6.1 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H)
5.4 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H/E:U/RL:U/RC:R)
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): Low
Integrity (I): None
Availibility (A): High
CVSS v2 Severity:5.8 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:P/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): None
Availibility (A): Partial
5.2 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:S/C:P/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Partial
Integrity (I): None
Availibility (A): Complete
Vulnerability Type:CWE-120
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2021-42716

Source: XF
Type: UNKNOWN
stb-cve202142716-dos(211857)

Source: CCN
Type: stb GIT Repository
stbi__pnm_load heap-buffer-overflow bug #1166

Source: MISC
Type: Exploit, Issue Tracking, Third Party Advisory
https://github.com/nothings/stb/issues/1166

Source: MISC
Type: Exploit, Issue Tracking, Third Party Advisory
https://github.com/nothings/stb/issues/1225

Source: MISC
Type: Third Party Advisory
https://github.com/nothings/stb/pull/1223

Source: FEDORA
Type: Mailing List, Third Party Advisory
FEDORA-2021-8ea648186c

Source: FEDORA
Type: Mailing List, Third Party Advisory
FEDORA-2021-16d848834d

Source: FEDORA
Type: Mailing List, Third Party Advisory
FEDORA-2021-f8ba4a690e

Source: FEDORA
Type: Mailing List, Third Party Advisory
FEDORA-2021-0511a38484

Source: FEDORA
Type: Mailing List, Third Party Advisory
FEDORA-2021-082bea5b34

Source: FEDORA
Type: Mailing List, Third Party Advisory
FEDORA-2021-001f25d986

Source: FEDORA
Type: Mailing List, Third Party Advisory
FEDORA-2021-d1446cd1ac

Source: FEDORA
Type: Mailing List, Third Party Advisory
FEDORA-2022-832689aa6b

Source: FEDORA
Type: Mailing List, Third Party Advisory
FEDORA-2021-3fc69d203c

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2021-42716

Vulnerable Configuration:Configuration 1:
  • cpe:/a:nothings:stb_image.h:2.27:*:*:*:*:*:*:*

    • Configuration 2:
  • cpe:/o:fedoraproject:fedora:33:*:*:*:*:*:*:*
  • OR cpe:/o:fedoraproject:fedora:34:*:*:*:*:*:*:*
  • OR cpe:/o:fedoraproject:fedora:35:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:stb_project:stb:2.27:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.opensuse.security:def:3569
    P
    		libXvMC1-1.0.8-7.1 on GA media (Moderate)
    2022-06-28
    oval:org.opensuse.security:def:95199
    P
    		libZXing1-1.2.0-9.7.1 on GA media (Moderate)
    2022-06-22
    oval:org.opensuse.security:def:5235
    P
    		Security update for zxing-cpp (Important)
    2022-01-24
    oval:org.opensuse.security:def:1801
    P
    		Security update for zxing-cpp (Important)
    2022-01-24
    oval:org.opensuse.security:def:6329
    P
    		Security update for zxing-cpp (Important)
    2022-01-24
    oval:org.opensuse.security:def:102091
    P
    		Security update for zxing-cpp (Important)
    2022-01-24
    oval:org.opensuse.security:def:102352
    P
    		Security update for zxing-cpp (Important)
    2022-01-24
    oval:org.opensuse.security:def:1512
    P
    		Security update for zxing-cpp (Important)
    2022-01-24
    oval:org.opensuse.security:def:112594
    P
    		libZXing1-1.2.0-2.1 on GA media (Moderate)
    2022-01-17
    BACK
    nothings stb image.h 2.27
    fedoraproject fedora 33
    fedoraproject fedora 34
    fedoraproject fedora 35
    stb_project stb 2.27