Multiple vulnerabilities in cmark-gfm
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 4 |
| CVE-ID | CVE-2023-22486 CVE-2023-22484 CVE-2023-22483 CVE-2023-22485 |
| CWE-ID | CWE-407 CWE-125 |
| Exploitation vector | Network |
| Public exploit | Public exploit code for vulnerability #4 is available. |
| Vulnerable software |
cmark-gfm Universal components / Libraries / Software for developers |
| Vendor | GitHub |
Security Bulletin
This security bulletin contains information about 4 vulnerabilities.
1) Inefficient Algorithmic Complexity
EUVDB-ID: #VU71459
Risk: Medium
CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID: CVE-2023-22486
CWE-ID:
CWE-407 - Inefficient Algorithmic Complexity
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a polynomial time complexity issue in cmark-gfm in handle_close_bracket. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.
MitigationInstall updates from vendor's website.
Vulnerable software versionscmark-gfm: 0.29.0.gfm.0 - 0.29.0.gfm.6
CPE2.3 External linkshttps://github.com/github/cmark-gfm/security/advisories/GHSA-r572-jvj2-3m8p
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
2) Inefficient Algorithmic Complexity
EUVDB-ID: #VU71460
Risk: Medium
CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID: CVE-2023-22484
CWE-ID:
CWE-407 - Inefficient Algorithmic Complexity
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a polynomial time complexity issue in cmark-gfm may in handle_pointy_brace. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.
MitigationInstall updates from vendor's website.
Vulnerable software versionscmark-gfm: 0.29.0.gfm.0 - 0.29.0.gfm.6
CPE2.3 External linkshttps://github.com/github/cmark-gfm/security/advisories/GHSA-24f7-9frr-5h2r
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
3) Inefficient Algorithmic Complexity
EUVDB-ID: #VU71461
Risk: Medium
CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID: CVE-2023-22483
CWE-ID:
CWE-407 - Inefficient Algorithmic Complexity
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to several polynomial time complexity issues. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.
MitigationInstall updates from vendor's website.
Vulnerable software versionscmark-gfm: 0.29.0.gfm.0 - 0.29.0.gfm.6
CPE2.3 External linkshttps://github.com/github/cmark-gfm/security/advisories/GHSA-29g3-96g3-jg6c
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
4) Out-of-bounds read
EUVDB-ID: #VU71462
Risk: Medium
CVSSv4.0: 5.5 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/U:Green]
CVE-ID: CVE-2023-22485
CWE-ID:
CWE-125 - Out-of-bounds read
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition in validate_protocol function. A remote attacker can trigger out-of-bounds read error and read contents of memory on the system.
MitigationInstall updates from vendor's website.
Vulnerable software versionscmark-gfm: 0.29.0.gfm.0 - 0.29.0.gfm.6
CPE2.3 External linkshttps://github.com/github/cmark-gfm/security/advisories/GHSA-c944-cv5f-hpvr
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.
