Vulnerability Details : CVE-2021-28153
Potential exploit
An issue was discovered in GNOME GLib before 2.66.8. When g_file_replace() is used with G_FILE_CREATE_REPLACE_DESTINATION to replace a path that is a dangling symlink, it incorrectly also creates the target of the symlink as an empty file, which could conceivably have security relevance if the symlink is attacker-controlled. (If the path is a symlink to a file that already exists, then the contents of that file correctly remain unchanged.)
Products affected by CVE-2021-28153
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:a:gnome:glib:*:*:*:*:*:*:*:*
- cpe:2.3:o:broadcom:brocade_fabric_operating_system_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-28153
0.45%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 62 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-28153
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:P/A:N |
10.0
|
2.9
|
NIST | |
|
5.3
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |
3.9
|
1.4
|
NIST |
CWE ids for CVE-2021-28153
-
The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-28153
-
https://gitlab.gnome.org/GNOME/glib/-/issues/2325
file-roller symlink attack (#2325) · Issues · GNOME / GLib · GitLabExploit;Issue Tracking;Patch;Vendor Advisory
-
https://lists.debian.org/debian-lts-announce/2022/06/msg00006.html
[SECURITY] [DLA 3044-1] glib2.0 security updateMailing List;Third Party Advisory
-
https://security.netapp.com/advisory/ntap-20210416-0003/
CVE-2021-28153 GNOME GLib Vulnerability in NetApp Products | NetApp Product SecurityThird Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6RXTD5HCP2K4AAUSWWZTBKQNHRCTAEOF/
[SECURITY] Fedora 33 Update: glib2-2.66.8-1.fc33 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
-
https://security.gentoo.org/glsa/202107-13
GLib: Multiple vulnerabilities (GLSA 202107-13) — Gentoo securityThird Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ICUTQPHZNZWX2DZR46QFLQZRHVMHIILJ/
[SECURITY] Fedora 33 Update: mingw-glib2-2.66.8-1.fc33 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
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