Vulnerability Details : CVE-2021-42716
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.
Vulnerability category: Overflow
Products affected by CVE-2021-42716
- cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
- cpe:2.3:a:nothings:stb_image.h:2.27:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-42716
0.21%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 59 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-42716
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.8
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:N/A:P |
8.6
|
4.9
|
NIST | |
|
7.1
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H |
1.8
|
5.2
|
NIST |
CWE ids for CVE-2021-42716
-
The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-42716
-
https://github.com/nothings/stb/issues/1225
In stb_image's PNM reader, loading a specially constructed valid 16-bit PGM file with 4 channels can cause a crash due to an out-of-bounds read · Issue #1225 · nothings/stb · GitHubExploit;Issue Tracking;Third Party Advisory
-
https://github.com/nothings/stb/pull/1223
Fixes a crash and an infinite loop in stb_image that could occur with specially constructed PGM and HDR files by NeilBickford-NV · Pull Request #1223 · nothings/stb · GitHubThird Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VP2YEXEAJWI76FPM7D7VXHWD3WESQEYC/
[SECURITY] Fedora 34 Update: sdrpp-1.0.4-3.fc34 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ID6II3RIKAMVGVMC6ZAQIXXYYDMTVC4N/
[SECURITY] Fedora 35 Update: stb-0-0.7.20211022gitaf1a5bc.fc35 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
-
https://github.com/nothings/stb/issues/1166
stbi__pnm_load heap-buffer-overflow bug · Issue #1166 · nothings/stb · GitHubExploit;Issue Tracking;Third Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TXX76TJMZBPN3NU542MGN6B7C7QHRFGB/
[SECURITY] Fedora 34 Update: usd-21.08-19.fc34 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3TDGZFLBOP27LZKLH45WQLSNPSPP7S7Z/
[SECURITY] Fedora 34 Update: CuraEngine-4.11.0-2.fc34 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/G2M5CRSGPRF7G3YB5CLU4FXW7ANNHAYT/
[SECURITY] Fedora 35 Update: usd-21.08-17.fc35 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AF2CNP4FVC6LDKNOO4WDCGNDYIP3MPK6/
[SECURITY] Fedora 35 Update: CuraEngine-4.11.0-2.fc35 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CI23LXPEV2GCDQTJSKO6CIILBDTI3R42/
[SECURITY] Fedora 33 Update: stb-0-0.7.20211022gitaf1a5bc.fc33 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FTZXHFZD36BGE5P6JF252NZZLKMGCY4T/
[SECURITY] Fedora 34 Update: stb-0-0.7.20211022gitaf1a5bc.fc34 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BEGXBDEMTFGINETMJENBZ6SCHVEJQJSY/
[SECURITY] Fedora 35 Update: sdrpp-1.0.4-3.fc35 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
Jump to