OpenSUSE Linux update for libgit2
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 4 |
| CVE-ID | CVE-2018-10887 CVE-2018-10888 CVE-2018-11235 CVE-2018-15501 |
| CWE-ID | CWE-125 CWE-190 CWE-20 |
| Exploitation vector | Network |
| Public exploit | Public exploit code for vulnerability #3 is available. |
| Vulnerable software Subscribe |
Opensuse Operating systems & Components / Operating system |
| Vendor | SUSE |
Security Bulletin
This security bulletin contains information about 4 vulnerabilities.
1) Integer overflow
EUVDB-ID: #VU13842
Risk: Low
CVSSv3.1: 3.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L/E:U/RL:O/RC:C]
CVE-ID: CVE-2018-10887
CWE-ID:
CWE-125 - Out-of-bounds read
Exploit availability: No
DescriptionThe vulnerability allows a local attacker to obtain potentially sensitive information or cause DoS condition on the target system.
The vulnerability exists due to integer overflow when unexpected sign extension in the git_delta_apply function of the delta.c file. A remote unauthenticated attacker can trigger an out-of-bounds read condition, bypass bounds check and read sensitive memory information or cause the service to crash.
MitigationUpdate the affected packages.
Opensuse: 15.0
External linkshttp://lists.opensuse.org/opensuse-security-announce/2018-08/msg00074.html
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
2) Out-of-bounds read
EUVDB-ID: #VU13843
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-2018-10888
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 vulnerability exists due to a missing check in the git_delta_apply function, as defined in the delta.c file. A remote unauthenticated attacker can trick the victim into opening a specially crafted binary delta file, trigger an out-of-bounds read condition and cause the service to crash.
MitigationUpdate the affected packages.
Opensuse: 15.0
External linkshttp://lists.opensuse.org/opensuse-security-announce/2018-08/msg00074.html
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) Improper input validation
EUVDB-ID: #VU13047
Risk: High
CVSSv3.1: 9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C]
CVE-ID: CVE-2018-11235
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: Yes
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the target system.
The weakness exists due to improper validation of submodule "names" supplied via the untrusted .gitmodules file when appending them to the '$GIT_DIR/modules' directory. A remote attacker can return specially crafted data to create or overwrite files on the target user's system when the repository is cloned and execute arbitrary code with elevated privileges.
Update the affected packages.
Opensuse: 15.0
External linkshttp://lists.opensuse.org/opensuse-security-announce/2018-08/msg00074.html
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) Out-of-bounds read
EUVDB-ID: #VU14546
Risk: Low
CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]
CVE-ID: CVE-2018-15501
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 vulnerability exists due to out-of-bounds read in ng_pkt in transports/smart_pkt.c in libgit2. A remote attacker can send a specially crafted smart-protocol "ng" packet that lacks a '' byte and cause the service to crash.
MitigationUpdate the affected packages.
Opensuse: 15.0
External linkshttp://lists.opensuse.org/opensuse-security-announce/2018-08/msg00074.html
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.
