VulnerabilityModified
CVE-2021-33910
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.
MEDIUM 5.5EPSS 8.79%
Does this matter?
Lower severity and a low EPSS score (8.79%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 8.79% probability · 95th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-770
- Affected
- systemd project/systemd · fedoraproject/fedora · debian/debian linux · netapp/hci management node · netapp/solidfire
- Source
- cve@mitre.org
References
- http://packetstormsecurity.com/files/163621/Sequoia-A-Deep-Root-In-Linuxs-Filesystem-Layer.htmlExploit, Third Party Advisory, VDB Entry
- http://www.openwall.com/lists/oss-security/2021/08/04/2Mailing List, Patch, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2021/08/17/3Mailing List, Patch, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2021/09/07/3Mailing List, Patch, Third Party Advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-222547.pdf
- https://github.com/systemd/systemd-stable/commit/4a1c5f34bd3e1daed4490e9d97918e504d19733bPatch, Third Party Advisory
- https://github.com/systemd/systemd-stable/commit/764b74113e36ac5219a4b82a05f311b5a92136cePatch, Third Party Advisory
- https://github.com/systemd/systemd-stable/commit/b00674347337b7531c92fdb65590ab253bb57538Patch, Third Party Advisory
- https://github.com/systemd/systemd-stable/commit/cfd14c65374027b34dbbc4f0551456c5dc2d1f61Patch, Third Party Advisory
- https://github.com/systemd/systemd/commit/b34a4f0e6729de292cb3b0c03c1d48f246ad896bPatch, Third Party Advisory
- https://github.com/systemd/systemd/pull/20256/commits/441e0115646d54f080e5c3bb0ba477c892861ab9Patch, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2LSDMHAKI4LGFOCSPXNVVSEWQFAVFWR7/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/42TMJVNYRY65B4QCJICBYOEIVZV3KUYI/
- https://security.gentoo.org/glsa/202107-48Third Party Advisory
- https://security.netapp.com/advisory/ntap-20211104-0008/Third Party Advisory
- https://www.debian.org/security/2021/dsa-4942Third Party Advisory
- https://www.openwall.com/lists/oss-security/2021/07/20/2Exploit, Mailing List, Third Party Advisory
- http://packetstormsecurity.com/files/163621/Sequoia-A-Deep-Root-In-Linuxs-Filesystem-Layer.htmlExploit, Third Party Advisory, VDB Entry
- http://www.openwall.com/lists/oss-security/2021/08/04/2Mailing List, Patch, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2021/08/17/3Mailing List, Patch, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2021/09/07/3Mailing List, Patch, Third Party Advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-222547.pdf
- https://github.com/systemd/systemd-stable/commit/4a1c5f34bd3e1daed4490e9d97918e504d19733bPatch, Third Party Advisory
- https://github.com/systemd/systemd-stable/commit/764b74113e36ac5219a4b82a05f311b5a92136cePatch, Third Party Advisory
- https://github.com/systemd/systemd-stable/commit/b00674347337b7531c92fdb65590ab253bb57538Patch, Third Party Advisory
- https://github.com/systemd/systemd-stable/commit/cfd14c65374027b34dbbc4f0551456c5dc2d1f61Patch, Third Party Advisory
- https://github.com/systemd/systemd/commit/b34a4f0e6729de292cb3b0c03c1d48f246ad896bPatch, Third Party Advisory
- https://github.com/systemd/systemd/pull/20256/commits/441e0115646d54f080e5c3bb0ba477c892861ab9Patch, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2LSDMHAKI4LGFOCSPXNVVSEWQFAVFWR7/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/42TMJVNYRY65B4QCJICBYOEIVZV3KUYI/
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.