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5 vulnerabilities by systemd

CVE-2026-29111 (GCVE-0-2026-29111)

Vulnerability from cvelistv5 – Published: 2026-03-23 21:03 – Updated: 2026-03-25 19:13
VLAI?
Title
systemd: Local unprivileged user can trigger an assert
Summary
systemd, a system and service manager, (as PID 1) hits an assert and freezes execution when an unprivileged IPC API call is made with spurious data. On version v249 and older the effect is not an assert, but stack overwriting, with the attacker controlled content. From version v250 and newer this is not possible as the safety check causes an assert instead. This IPC call was added in v239, so versions older than that are not affected. Versions 260-rc1, 259.2, 258.5, and 257.11 contain patches. No known workarounds are available.
Severity ?
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-269 - Improper Privilege Management
Assigner
References
Impacted products
Vendor Product Version
systemd systemd Affected: >= 239, < 257.11
Affected: >= 258, < 258.5
Affected: >= 259, < 259.2
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2012-1101 (GCVE-0-2012-1101)

Vulnerability from cvelistv5 – Published: 2020-03-11 14:58 – Updated: 2024-08-06 18:45
VLAI?
Summary
systemd 37-1 does not properly handle non-existent services, which causes a denial of service (failure of login procedure).
Severity ?
No CVSS data available.
CWE
  • Other
Assigner
References
Impacted products
Vendor Product Version
systemd systemd Affected: 37-1
Create a notification for this product.
Date Public ?
2011-12-06 00:00
Show details on NVD website
To clipboard 

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CVE-2018-15688 (GCVE-0-2018-15688)

Vulnerability from cvelistv5 – Published: 2018-10-26 14:00 – Updated: 2025-06-09 15:55
VLAI?
Title
Out-of-Bounds write in systemd-networkd dhcpv6 option handling
Summary
A buffer overflow vulnerability in the dhcp6 client of systemd allows a malicious dhcp6 server to overwrite heap memory in systemd-networkd. Affected releases are systemd: versions up to and including 239.
Severity ?
8.8 (High)
CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
  • dhcp6_option_append_ia() contained an incorrect buffer size calculation.
Assigner
References
https://security.gentoo.org/glsa/201810-10 vendor-advisoryx_refsource_GENTOO
https://lists.debian.org/debian-lts-announce/2018… mailing-listx_refsource_MLIST
https://usn.ubuntu.com/3807-1/ vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/3806-1/ vendor-advisoryx_refsource_UBUNTU
https://access.redhat.com/errata/RHSA-2018:3665 vendor-advisoryx_refsource_REDHAT
http://www.securityfocus.com/bid/105745 vdb-entryx_refsource_BID
https://github.com/systemd/systemd/pull/10518 x_refsource_MISC
https://access.redhat.com/errata/RHSA-2019:0049 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHBA-2019:0327 vendor-advisoryx_refsource_REDHAT
Impacted products
Vendor Product Version
systemd systemd Affected: unspecified , ≤ 239 (custom)
Create a notification for this product.
Date Public ?
2018-10-25 00:00
Credits
Felix Wilhelm from the Google Security Team
Show details on NVD website
To clipboard 

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CVE-2018-15686 (GCVE-0-2018-15686)

Vulnerability from cvelistv5 – Published: 2018-10-26 14:00 – Updated: 2025-06-09 15:50
VLAI?
Title
systemd: reexec state injection: fgets() on overlong lines leads to line splitting
Summary
A vulnerability in unit_deserialize of systemd allows an attacker to supply arbitrary state across systemd re-execution via NotifyAccess. This can be used to improperly influence systemd execution and possibly lead to root privilege escalation. Affected releases are systemd versions up to and including 239.
Severity ?
7 (High)
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
  • fgets() can be confused by overly-long input strings. The first read will return a partial string and subsequent reads will begin as if it were a new line.
Assigner
References
Impacted products
Vendor Product Version
systemd systemd Affected: unspecified , ≤ 239 (custom)
Create a notification for this product.
Date Public ?
2018-10-25 00:00
Credits
Jann Horn
Show details on NVD website
To clipboard 

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CVE-2018-15687 (GCVE-0-2018-15687)

Vulnerability from cvelistv5 – Published: 2018-10-26 14:00 – Updated: 2025-06-09 15:48
VLAI?
Title
systemd: chown_one() can dereference symlinks
Summary
A race condition in chown_one() of systemd allows an attacker to cause systemd to set arbitrary permissions on arbitrary files. Affected releases are systemd versions up to and including 239.
Severity ?
7.8 (High)
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
  • There is a race condition between a stat(2) call and the fchmodat(2) call.
Assigner
References
https://security.gentoo.org/glsa/201810-10 vendor-advisoryx_refsource_GENTOO
https://github.com/systemd/systemd/pull/10517/commits x_refsource_MISC
http://www.securityfocus.com/bid/105748 vdb-entryx_refsource_BID
https://usn.ubuntu.com/3816-1/ vendor-advisoryx_refsource_UBUNTU
https://www.exploit-db.com/exploits/45715/ exploitx_refsource_EXPLOIT-DB
Impacted products
Vendor Product Version
systemd systemd Affected: unspecified , ≤ 239 (custom)
Create a notification for this product.
Date Public ?
2018-10-25 00:00
Credits
Jann Horn
Show details on NVD website
To clipboard 

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