openEuler 20.03 LTS SP4 update for syslinux
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2020-24370 |
| CWE-ID | CWE-191 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software |
openEuler Operating systems & Components / Operating system syslinux-perl Operating systems & Components / Operating system package or component syslinux-extlinux Operating systems & Components / Operating system package or component syslinux-efi64 Operating systems & Components / Operating system package or component syslinux-devel Operating systems & Components / Operating system package or component syslinux-debugsource Operating systems & Components / Operating system package or component syslinux-debuginfo Operating systems & Components / Operating system package or component syslinux-tftpboot Operating systems & Components / Operating system package or component syslinux-nonlinux Operating systems & Components / Operating system package or component syslinux-extlinux-nonlinux Operating systems & Components / Operating system package or component syslinux Operating systems & Components / Operating system package or component |
| Vendor | openEuler |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
1) Integer underflow
EUVDB-ID: #VU45992
Risk: Medium
CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID: CVE-2020-24370
CWE-ID:
CWE-191 - Integer underflow
Exploit availability: No
DescriptionThe vulnerability allows a remote non-authenticated attacker to perform service disruption.
ldebug.c in Lua 5.4.0 allows a negation overflow and segmentation fault in getlocal and setlocal, as demonstrated by getlocal(3,2^31).
MitigationInstall updates from vendor's repository.
Vulnerable software versionsopenEuler: 20.03 LTS SP4
syslinux-perl: before 6.04-15
syslinux-extlinux: before 6.04-15
syslinux-efi64: before 6.04-15
syslinux-devel: before 6.04-15
syslinux-debugsource: before 6.04-15
syslinux-debuginfo: before 6.04-15
syslinux-tftpboot: before 6.04-15
syslinux-nonlinux: before 6.04-15
syslinux-extlinux-nonlinux: before 6.04-15
syslinux: before 6.04-15
CPE2.3- cpe:2.3:o:openeuler:openeuler:20.03:LTS SP4:*:*:*:*:*:*
- cpe:2.3:o:openeuler:syslinux-perl:*:*:*:*:*:openeuler:*:*
- cpe:2.3:o:openeuler:syslinux-extlinux:*:*:*:*:*:openeuler:*:*
- cpe:2.3:o:openeuler:syslinux-efi64:*:*:*:*:*:openeuler:*:*
- cpe:2.3:o:openeuler:syslinux-devel:*:*:*:*:*:openeuler:*:*
- cpe:2.3:o:openeuler:syslinux-debugsource:*:*:*:*:*:openeuler:*:*
- cpe:2.3:o:openeuler:syslinux-debuginfo:*:*:*:*:*:openeuler:*:*
- cpe:2.3:o:openeuler:syslinux-tftpboot:*:*:*:*:*:openeuler:*:*
- cpe:2.3:o:openeuler:syslinux-nonlinux:*:*:*:*:*:openeuler:*:*
- cpe:2.3:o:openeuler:syslinux-extlinux-nonlinux:*:*:*:*:*:openeuler:*:*
- cpe:2.3:o:openeuler:syslinux:*:*:*:*:*:openeuler:*:*
https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2025-1301
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.
