openEuler update for syslinux
Security Bulletin
This security bulletin contains information about 4 vulnerabilities.
1) Denial of service
EUVDB-ID: #VU6663
Risk: Low
CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]
CVE-ID: CVE-2016-9840
CWE-ID:
CWE-125 - Out-of-bounds read
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to cause DoS condition on the target system.
The weakness exists in zlib due to out-of-bounds pointer arithmetic in inftrees.c. A remote attacker can send a specially crafted document, trick the victim into opening it, and cause the application to crash.
Successful exploitation of the vulnerability results in denial of service.
Install updates from vendor's repository.
Vulnerable software versionsopenEuler: 20.03 LTS SP1 - 22.03 LTS SP2
syslinux-extlinux: before 6.04-12
syslinux-debugsource: before 6.04-12
syslinux-debuginfo: before 6.04-12
syslinux-devel: before 6.04-12
syslinux-efi64: before 6.04-12
syslinux-perl: before 6.04-12
syslinux-extlinux-nonlinux: before 6.04-12
syslinux-tftpboot: before 6.04-12
syslinux-nonlinux: before 6.04-12
syslinux: before 6.04-12
External linkshttp://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2023-1433
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) Denial of service
EUVDB-ID: #VU6665
Risk: Low
CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]
CVE-ID: CVE-2016-9842
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to cause DoS condition on the target system.
The weakness exists in zlib due to an undefined left shift of negative number. A remote attacker can send a specially crafted document, trick the victim into opening it, and cause the application to crash.
Successful exploitation of the vulnerability results in denial of service.
Install updates from vendor's repository.
Vulnerable software versionsopenEuler: 20.03 LTS SP1 - 22.03 LTS SP2
syslinux-extlinux: before 6.04-12
syslinux-debugsource: before 6.04-12
syslinux-debuginfo: before 6.04-12
syslinux-devel: before 6.04-12
syslinux-efi64: before 6.04-12
syslinux-perl: before 6.04-12
syslinux-extlinux-nonlinux: before 6.04-12
syslinux-tftpboot: before 6.04-12
syslinux-nonlinux: before 6.04-12
syslinux: before 6.04-12
External linkshttp://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2023-1433
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) Denial of service
EUVDB-ID: #VU6666
Risk: Low
CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]
CVE-ID: CVE-2016-9843
CWE-ID:
CWE-125 - Out-of-bounds read
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to cause DoS condition on the target system.
The weakness exists in zlib due to big-endian out-of-bounds pointer. A remote attacker can send a specially crafted document, trick the victim into opening it, and cause the application to crash.
Successful exploitation of the vulnerability results in denial of service.
Install updates from vendor's repository.
Vulnerable software versionsopenEuler: 20.03 LTS SP1 - 22.03 LTS SP2
syslinux-extlinux: before 6.04-12
syslinux-debugsource: before 6.04-12
syslinux-debuginfo: before 6.04-12
syslinux-devel: before 6.04-12
syslinux-efi64: before 6.04-12
syslinux-perl: before 6.04-12
syslinux-extlinux-nonlinux: before 6.04-12
syslinux-tftpboot: before 6.04-12
syslinux-nonlinux: before 6.04-12
syslinux: before 6.04-12
External linkshttp://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2023-1433
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) Denial of service
EUVDB-ID: #VU6664
Risk: Low
CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]
CVE-ID: CVE-2016-9841
CWE-ID:
CWE-125 - Out-of-bounds read
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to cause DoS condition on the target system.
The weakness exists in zlib due to out-of-bounds pointer arithmetic in inftrees.c. A remote attacker can send a specially crafted document, trick the victim into opening it, and cause the application to crash.
Successful exploitation of the vulnerability results in denial of service.
Install updates from vendor's repository.
Vulnerable software versionsopenEuler: 20.03 LTS SP1 - 22.03 LTS SP2
syslinux-extlinux: before 6.04-12
syslinux-debugsource: before 6.04-12
syslinux-debuginfo: before 6.04-12
syslinux-devel: before 6.04-12
syslinux-efi64: before 6.04-12
syslinux-perl: before 6.04-12
syslinux-extlinux-nonlinux: before 6.04-12
syslinux-tftpboot: before 6.04-12
syslinux-nonlinux: before 6.04-12
syslinux: before 6.04-12
External linkshttp://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2023-1433
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.
