Risk | High |
Patch available | YES |
Number of vulnerabilities | 2 |
CVE-ID | CVE-2020-1752 CVE-2020-1751 |
CWE-ID | CWE-416 CWE-787 |
Exploitation vector | Network |
Public exploit | N/A |
Vulnerable software Subscribe |
Glibc Universal components / Libraries / Libraries used by multiple products |
Vendor | GNU |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
Updated 20.04.2020
Added vulnerability #2
EUVDB-ID: #VU26628
Risk: High
CVSSv3.1: 7.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-1752
CWE-ID:
CWE-416 - Use After Free
Exploit availability: No
DescriptionThe vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the glob() function in glibc in the way the tilde expansion was carried out. Directory paths containing an initial tilde followed by a valid username are affected by this issue. A local user can create a specially crafted path that, when processed by the glob() function, would potentially lead to arbitrary code execution.
MitigationInstall updates from vendor's website.
Vulnerable software versionsGlibc: 2.14.1 - 2.30
External linkshttp://bugzilla.redhat.com/show_bug.cgi?id=1810718
http://sourceware.org/git/gitweb.cgi?p=glibc.git;h=ddc650e9b3dc916eab417ce9f79e67337b05035c
http://sourceware.org/bugzilla/show_bug.cgi?id=25414
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.
EUVDB-ID: #VU27033
Risk: High
CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-1751
CWE-ID:
CWE-787 - Out-of-bounds write
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a boundary error in the "backtrace" function when handling signal trampolines on PowerPC. A remote attacker can trigger out-of-bounds write and execute arbitrary code on the target system.
MitigationInstall updates from vendor's website.
Vulnerable software versionsGlibc: 2.0 - 2.30
External linkshttp://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1751
http://sourceware.org/bugzilla/show_bug.cgi?id=25423
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.