Vulnerability · Published Aug 23, 2022 · Assigned by redhat
CVE-2021-3800
Medium 5.5
In plain English
A medium-severity information exposure in Glib. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 47% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)0.6%top 52.9% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
A flaw was found in glib before version 2.63.6. Due to random charset alias, pkexec can leak content from files owned by privileged users to unprivileged ones under the right condition.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:8 | glib2-doc | 2.56.4-156.el8 | ALSA-2021:4385 |
| AlmaLinux:8 | glib2-static | 2.56.4-156.el8 | ALSA-2021:4385 |
| Debian:12 | glib2.0 | 2.64.0-1 | DEBIAN-CVE-2021-3800 |
| Debian:13 | glib2.0 | 2.64.0-1 | DEBIAN-CVE-2021-3800 |
| Debian:14 | glib2.0 | 2.64.0-1 | DEBIAN-CVE-2021-3800 |
| Rocky Linux:8 | glib2 | 0:2.56.4-156.el8 | RLSA-2021:4385 |
Affected products (as reported)
Weakness: CWE-200
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1938284
- https://access.redhat.com/security/cve/CVE-2021-3800
- https://www.openwall.com/lists/oss-security/2017/06/23/8
- https://gitlab.gnome.org/GNOME/glib/-/commit/3529bb4450a51995
- [debian-lts-announce] 20220915 [SECURITY] [DLA 3110-1] glib2.0 security update mailing-list
- https://security.netapp.com/advisory/ntap-20221028-0004/