Out-of-bounds read in libxml2
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2020-24977 |
| CWE-ID | CWE-125 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
Libxml2 Universal components / Libraries / Libraries used by multiple products |
| Vendor | Gnome Development Team |
Security Bulletin
This security bulletin contains information about 1 vulnerabilities.
Updated 14.05.2021
Added fixed version.
1) Out-of-bounds read
EUVDB-ID: #VU46737
Risk: Medium
CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-24977
CWE-ID:
CWE-125 - Out-of-bounds read
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition within the xmlEncodeEntitiesInternal() function in libxml2/entities.c in libxml2. A remote attacker can pas specially crafted XML data to the affected application, trigger out-of-bounds read error and read contents of memory on the system.
MitigationInstall update from vendor's website.
Vulnerable software versionsLibxml2: 2.9.10
External linkshttp://lists.opensuse.org/opensuse-security-announce/2020-09/msg00036.html
http://gitlab.gnome.org/GNOME/libxml2/-/issues/178
http://lists.debian.org/debian-lts-announce/2020/09/msg00009.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.
