Red Hat Enterprise Linux 8 update for oniguruma
| Risk | High |
| Patch available | YES |
| Number of vulnerabilities | 5 |
| CVE-ID | CVE-2019-13224 CVE-2019-16163 CVE-2019-19012 CVE-2019-19203 CVE-2019-19204 |
| CWE-ID | CWE-416 CWE-400 CWE-190 CWE-126 |
| Exploitation vector | Network |
| Public exploit |
Public exploit code for vulnerability #3 is available. Public exploit code for vulnerability #4 is available. Public exploit code for vulnerability #5 is available. |
| Vulnerable software Subscribe |
Red Hat CodeReady Linux Builder for IBM z Systems Operating systems & Components / Operating system Red Hat CodeReady Linux Builder for ARM 64 Operating systems & Components / Operating system Red Hat CodeReady Linux Builder for Power, little endian Operating systems & Components / Operating system Red Hat CodeReady Linux Builder for x86_64 Operating systems & Components / Operating system oniguruma (Red Hat package) Operating systems & Components / Operating system package or component |
| Vendor | Red Hat Inc. |
Security Bulletin
This security bulletin contains information about 5 vulnerabilities.
1) Use-after-free
EUVDB-ID: #VU20904
Risk: High
CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2019-13224
CWE-ID:
CWE-416 - Use After Free
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error within the onig_new_deluxe() function in regext.c in Oniguruma library when processing regular expressions. A remote attacker can pass specially crafted input to the application using the vulnerable library version, trigger use-after-free error and perform denial of service attack or execute arbitrary code on the system.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
MitigationInstall updates from vendor's website.
Red Hat CodeReady Linux Builder for IBM z Systems: 8.0
Red Hat CodeReady Linux Builder for ARM 64: 8.0
Red Hat CodeReady Linux Builder for Power, little endian: 8.0
Red Hat CodeReady Linux Builder for x86_64: 8.0
oniguruma (Red Hat package): before 6.8.2-2.1.el8_9
External linkshttp://access.redhat.com/errata/RHSA-2024:0889
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) Resource exhaustion
EUVDB-ID: #VU30789
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-2019-16163
CWE-ID:
CWE-400 - Resource exhaustion
Exploit availability: No
DescriptionThe vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
Oniguruma before 6.9.3 allows Stack Exhaustion in regcomp.c because of recursion in regparse.c.
MitigationInstall updates from vendor's website.
Red Hat CodeReady Linux Builder for IBM z Systems: 8.0
Red Hat CodeReady Linux Builder for ARM 64: 8.0
Red Hat CodeReady Linux Builder for Power, little endian: 8.0
Red Hat CodeReady Linux Builder for x86_64: 8.0
oniguruma (Red Hat package): before 6.8.2-2.1.el8_9
External linkshttp://access.redhat.com/errata/RHSA-2024:0889
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) Integer overflow
EUVDB-ID: #VU22814
Risk: High
CVSSv3.1: 7.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H/E:P/RL:O/RC:C]
CVE-ID: CVE-2019-19012
CWE-ID:
CWE-190 - Integer overflow
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to integer overflow in the "search_in_range" function in "regexec.c". A remote attacker can use a specially crafted regular expression, trigger out-of-bounds read and cause a denial-of-service or information disclosure on the target system.
Install updates from vendor's website.
Red Hat CodeReady Linux Builder for IBM z Systems: 8.0
Red Hat CodeReady Linux Builder for ARM 64: 8.0
Red Hat CodeReady Linux Builder for Power, little endian: 8.0
Red Hat CodeReady Linux Builder for x86_64: 8.0
oniguruma (Red Hat package): before 6.8.2-2.1.el8_9
External linkshttp://access.redhat.com/errata/RHSA-2024:0889
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.
4) Buffer Over-read
EUVDB-ID: #VU22932
Risk: Medium
CVSSv3.1: 6.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C]
CVE-ID: CVE-2019-19203
CWE-ID:
CWE-126 - Buffer over-read
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists in the "gb18030_mbc_enc_len" function in "gb18030.c" file due to the UChar pointer is dereferenced without checking if it passed the end of the matched string. A remote attacker can cause a denial of service condition on the target system.
Install updates from vendor's website.
Red Hat CodeReady Linux Builder for IBM z Systems: 8.0
Red Hat CodeReady Linux Builder for ARM 64: 8.0
Red Hat CodeReady Linux Builder for Power, little endian: 8.0
Red Hat CodeReady Linux Builder for x86_64: 8.0
oniguruma (Red Hat package): before 6.8.2-2.1.el8_9
External linkshttp://access.redhat.com/errata/RHSA-2024:0889
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.
5) Buffer Over-read
EUVDB-ID: #VU22933
Risk: Medium
CVSSv3.1: 6.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C]
CVE-ID: CVE-2019-19204
CWE-ID:
CWE-126 - Buffer over-read
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists in the "fetch_interval_quantifier" function (formerly known as fetch_range_quantifier) in "regparse.c" file due to the PFETCH is called without checking PEND. A remote attacker can cause a denial of service condition on the target system. MitigationInstall updates from vendor's website.
Red Hat CodeReady Linux Builder for IBM z Systems: 8.0
Red Hat CodeReady Linux Builder for ARM 64: 8.0
Red Hat CodeReady Linux Builder for Power, little endian: 8.0
Red Hat CodeReady Linux Builder for x86_64: 8.0
oniguruma (Red Hat package): before 6.8.2-2.1.el8_9
External linkshttp://access.redhat.com/errata/RHSA-2024:0889
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.
