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CVE-2021-33910
CVE information
Published
Last Modified
CVSSv2.0 Severity
CVSSv3.1 Severity
Impact Analysis
Description
basic/unit-name.c in systemd prior to 246.15, 247.8, 248.5, and 249.1 has a Memory Allocation with an Excessive Size Value (involving strdupa and alloca for a pathname controlled by a local attacker) that results in an operating system crash..
CVSSv2.0 Score
- Severity
- Medium
- Base Score
- 4.9/10
- Exploit Score
- 3.9/10
- Access Vector
- Local
- Access Complexity
- Low
- Authentication Required
- None
- Impact Score
- 6.9/10
- Confidentiality Impact
- None
- Availability Impact
- Complete
- Integrity Impact
- None
CVSSv3.1 Score
- Severity
- Medium
- Base Score
- 5.5/10
- Exploit Score
- 1.8/10
- Access Vector
- Local
- Access Complexity
- Low
- Privileges Required
- Low
- Impact Score
- 3.6/10
- Confidentiality Impact
- None
- Availability Impact
- High
- Integrity Impact
- None
- Scope
- Unchanged
- User Interaction
- None
Products Affected
CPE | Affected | Vulnerable | Excluding | Edit |
---|---|---|---|---|
cpe:2.3:a:systemd_project:systemd:*:*:*:*:*:*:*:* |
Yes
|
247 | 247.8 | |
cpe:2.3:a:systemd_project:systemd:*:*:*:*:*:*:*:* |
Yes
|
- | 246.15 | |
cpe:2.3:a:systemd_project:systemd:*:*:*:*:*:*:*:* |
Yes
|
248 | 248.5 | |
cpe:2.3:a:systemd_project:systemd:*:*:*:*:*:*:*:* |
Yes
|
249 | 249.1 | |
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* |
Yes
|
- | - | |
cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* |
Yes
|
- | - | |
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* |
Yes
|
- | - | |
cpe:2.3:a:netapp:solidfire:-:*:*:*:*:*:*:* |
Yes
|
- | - | |
cpe:2.3:a:netapp:hci_management_node:-:*:*:*:*:*:*:* |
Yes
|
- | - |
References
- https://github.com/systemd/systemd/pull/20256/commits/441e0115646d54f080e5c3bb0ba477c892
- https://www.openwall.com/lists/oss-security/2021/07/20/2
- https://security.gentoo.org/glsa/202107-48
- https://www.debian.org/security/2021/dsa-4942
- http://packetstormsecurity.com/files/163621/Sequoia-A-Deep-Root-In-Linuxs-Filesystem-Lay
- https://github.com/systemd/systemd-stable/commit/764b74113e36ac5219a4b82a05f311b5a92136c
- https://github.com/systemd/systemd-stable/commit/4a1c5f34bd3e1daed4490e9d97918e504d19733
- https://github.com/systemd/systemd-stable/commit/b00674347337b7531c92fdb65590ab253bb5753
- https://github.com/systemd/systemd/commit/b34a4f0e6729de292cb3b0c03c1d48f246ad896b
- https://github.com/systemd/systemd-stable/commit/cfd14c65374027b34dbbc4f0551456c5dc2d1f6
- http://www.openwall.com/lists/oss-security/2021/08/04/2
- http://www.openwall.com/lists/oss-security/2021/08/17/3
- http://www.openwall.com/lists/oss-security/2021/09/07/3
- https://security.netapp.com/advisory/ntap-20211104-0008/
- https://cert-portal.siemens.com/productcert/pdf/ssa-222547.pdf
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org