openEuler update for expat
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 2 |
| CVE-ID | CVE-2023-52426 CVE-2024-28757 |
| CWE-ID | CWE-776 CWE-611 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
openEuler Operating systems & Components / Operating system expat-help Operating systems & Components / Operating system package or component expat-debuginfo Operating systems & Components / Operating system package or component expat-devel Operating systems & Components / Operating system package or component expat-debugsource Operating systems & Components / Operating system package or component expat Operating systems & Components / Operating system package or component |
| Vendor | openEuler |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
1) XML Entity Expansion
EUVDB-ID: #VU86231
Risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2023-52426
CWE-ID:
CWE-776 - Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion')
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to recursive XML Entity Expansion if XML_DTD is undefined at compile time. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.
Install updates from vendor's repository.
Vulnerable software versionsopenEuler: 20.03 LTS SP1 - 22.03 LTS SP3
expat-help: before 2.2.9-11
expat-debuginfo: before 2.2.9-11
expat-devel: before 2.2.9-11
expat-debugsource: before 2.2.9-11
expat: before 2.2.9-11
External linkshttp://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2024-1379
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) XML External Entity injection
EUVDB-ID: #VU87337
Risk: Medium
CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2024-28757
CWE-ID:
CWE-611 - Improper Restriction of XML External Entity Reference ('XXE')
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to gain access to sensitive information.
The vulnerability exists due to insufficient validation of user-supplied XML input when using external parsers via XML_ExternalEntityParserCreate. A remote attacker can pass a specially crafted XML code to the affected application and view contents of arbitrary files on the system or initiate requests to external systems.
Successful exploitation of the vulnerability may allow an attacker to view contents of arbitrary file on the server or perform network scanning of internal and external infrastructure.
MitigationInstall updates from vendor's repository.
Vulnerable software versionsopenEuler: 20.03 LTS SP1 - 22.03 LTS SP3
expat-help: before 2.2.9-11
expat-debuginfo: before 2.2.9-11
expat-devel: before 2.2.9-11
expat-debugsource: before 2.2.9-11
expat: before 2.2.9-11
External linkshttp://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2024-1379
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.
