Search criteria
96 vulnerabilities found for systemd by systemd_project
CVE-2025-4598 (GCVE-0-2025-4598)
Vulnerability from nvd – Published: 2025-05-30 13:13 – Updated: 2025-12-16 09:33
VLAI?
Title
Systemd-coredump: race condition that allows a local attacker to crash a suid program and gain read access to the resulting core dump
Summary
A vulnerability was found in systemd-coredump. This flaw allows an attacker to force a SUID process to crash and replace it with a non-SUID binary to access the original's privileged process coredump, allowing the attacker to read sensitive data, such as /etc/shadow content, loaded by the original process.
A SUID binary or process has a special type of permission, which allows the process to run with the file owner's permissions, regardless of the user executing the binary. This allows the process to access more restricted data than unprivileged users or processes would be able to. An attacker can leverage this flaw by forcing a SUID process to crash and force the Linux kernel to recycle the process PID before systemd-coredump can analyze the /proc/pid/auxv file. If the attacker wins the race condition, they gain access to the original's SUID process coredump file. They can read sensitive content loaded into memory by the original binary, affecting data confidentiality.
Severity ?
4.7 (Medium)
CWE
- CWE-364 - Signal Handler Race Condition
Assigner
References
| URL | Tags | ||||||||||||||||||||||
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Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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|
Affected:
0 , < 252.37
(semver)
Affected: 253.0 , < 253.32 (semver) Affected: 254.0 , < 254.25 (semver) Affected: 255.0 , < 255.19 (semver) Affected: 256.0 , < 256.14 (semver) Affected: 257.0 , < 257.6 (semver) |
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CVE-2023-7008 (GCVE-0-2023-7008)
Vulnerability from nvd – Published: 2023-12-23 13:00 – Updated: 2025-11-06 21:45
VLAI?
Title
Systemd-resolved: unsigned name response in signed zone is not refused when dnssec=yes
Summary
A vulnerability was found in systemd-resolved. This issue may allow systemd-resolved to accept records of DNSSEC-signed domains even when they have no signature, allowing man-in-the-middles (or the upstream DNS resolver) to manipulate records.
Severity ?
5.9 (Medium)
CWE
- CWE-300 - Channel Accessible by Non-Endpoint
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Impacted products
| Vendor | Product | Version | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 8 |
Unaffected:
0:239-82.el8 , < *
(rpm)
cpe:/o:redhat:enterprise_linux:8::baseos |
|||||||||||||||||
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"title": "Systemd-resolved: unsigned name response in signed zone is not refused when dnssec=yes",
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CVE-2023-31439 (GCVE-0-2023-31439)
Vulnerability from nvd – Published: 2023-06-13 00:00 – Updated: 2024-08-02 14:53 Disputed
VLAI?
Summary
An issue was discovered in systemd 253. An attacker can modify the contents of past events in a sealed log file and then adjust the file such that checking the integrity shows no error, despite modifications. NOTE: the vendor reportedly sent "a reply denying that any of the finding was a security vulnerability."
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
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CVE-2023-31438 (GCVE-0-2023-31438)
Vulnerability from nvd – Published: 2023-06-13 00:00 – Updated: 2024-08-02 14:53 Disputed
VLAI?
Summary
An issue was discovered in systemd 253. An attacker can truncate a sealed log file and then resume log sealing such that checking the integrity shows no error, despite modifications. NOTE: the vendor reportedly sent "a reply denying that any of the finding was a security vulnerability."
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
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CVE-2023-31437 (GCVE-0-2023-31437)
Vulnerability from nvd – Published: 2023-06-13 00:00 – Updated: 2025-01-03 19:31 Disputed
VLAI?
Summary
An issue was discovered in systemd 253. An attacker can modify a sealed log file such that, in some views, not all existing and sealed log messages are displayed. NOTE: the vendor reportedly sent "a reply denying that any of the finding was a security vulnerability."
Severity ?
5.3 (Medium)
CWE
- n/a
Assigner
References
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CVE-2023-26604 (GCVE-0-2023-26604)
Vulnerability from nvd – Published: 2023-03-03 00:00 – Updated: 2025-03-07 18:16
VLAI?
Summary
systemd before 247 does not adequately block local privilege escalation for some Sudo configurations, e.g., plausible sudoers files in which the "systemctl status" command may be executed. Specifically, systemd does not set LESSSECURE to 1, and thus other programs may be launched from the less program. This presents a substantial security risk when running systemctl from Sudo, because less executes as root when the terminal size is too small to show the complete systemctl output.
Severity ?
7.8 (High)
CWE
- n/a
Assigner
References
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CVE-2022-4415 (GCVE-0-2022-4415)
Vulnerability from nvd – Published: 2023-01-11 00:00 – Updated: 2025-11-03 19:27
VLAI?
Summary
A vulnerability was found in systemd. This security flaw can cause a local information leak due to systemd-coredump not respecting the fs.suid_dumpable kernel setting.
Severity ?
5.5 (Medium)
CWE
Assigner
References
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CVE-2022-45873 (GCVE-0-2022-45873)
Vulnerability from nvd – Published: 2022-11-23 00:00 – Updated: 2025-04-25 18:19
VLAI?
Summary
systemd 250 and 251 allows local users to achieve a systemd-coredump deadlock by triggering a crash that has a long backtrace. This occurs in parse_elf_object in shared/elf-util.c. The exploitation methodology is to crash a binary calling the same function recursively, and put it in a deeply nested directory to make its backtrace large enough to cause the deadlock. This must be done 16 times when MaxConnections=16 is set for the systemd/units/systemd-coredump.socket file.
Severity ?
5.5 (Medium)
CWE
- n/a
Assigner
References
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CVE-2022-3821 (GCVE-0-2022-3821)
Vulnerability from nvd – Published: 2022-11-08 00:00 – Updated: 2025-05-02 18:12
VLAI?
Summary
An off-by-one Error issue was discovered in Systemd in format_timespan() function of time-util.c. An attacker could supply specific values for time and accuracy that leads to buffer overrun in format_timespan(), leading to a Denial of Service.
Severity ?
5.5 (Medium)
CWE
- CWE-193 - - Off-by-one Error
Assigner
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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CVE-2022-2526 (GCVE-0-2022-2526)
Vulnerability from nvd – Published: 2022-09-09 00:00 – Updated: 2024-08-03 00:39
VLAI?
Summary
A use-after-free vulnerability was found in systemd. This issue occurs due to the on_stream_io() function and dns_stream_complete() function in 'resolved-dns-stream.c' not incrementing the reference counting for the DnsStream object. Therefore, other functions and callbacks called can dereference the DNSStream object, causing the use-after-free when the reference is still used later.
Severity ?
No CVSS data available.
CWE
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| n/a | systemd-resolved |
Affected:
systemd 240
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CVE-2021-3997 (GCVE-0-2021-3997)
Vulnerability from nvd – Published: 2022-08-23 00:00 – Updated: 2024-08-03 17:16
VLAI?
Summary
A flaw was found in systemd. An uncontrolled recursion in systemd-tmpfiles may lead to a denial of service at boot time when too many nested directories are created in /tmp.
Severity ?
No CVSS data available.
CWE
- CWE-674 - - Uncontrolled Recursion
Assigner
References
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CVE-2021-33910 (GCVE-0-2021-33910)
Vulnerability from nvd – Published: 2021-07-20 18:13 – Updated: 2025-06-09 15:44
VLAI?
Summary
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.
Severity ?
5.5 (Medium)
CWE
- n/a
Assigner
References
| URL | Tags | ||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
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CVE-2020-13529 (GCVE-0-2020-13529)
Vulnerability from nvd – Published: 2021-05-10 15:08 – Updated: 2024-08-04 12:18
VLAI?
Summary
An exploitable denial-of-service vulnerability exists in Systemd 245. A specially crafted DHCP FORCERENEW packet can cause a server running the DHCP client to be vulnerable to a DHCP ACK spoofing attack. An attacker can forge a pair of FORCERENEW and DCHP ACK packets to reconfigure the server.
Severity ?
6.1 (Medium)
CWE
- CWE-290 - Authentication Bypass by Spoofing
Assigner
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Impacted products
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CVE-2020-13776 (GCVE-0-2020-13776)
Vulnerability from nvd – Published: 2020-06-03 02:05 – Updated: 2025-06-09 15:46
VLAI?
Summary
systemd through v245 mishandles numerical usernames such as ones composed of decimal digits or 0x followed by hex digits, as demonstrated by use of root privileges when privileges of the 0x0 user account were intended. NOTE: this issue exists because of an incomplete fix for CVE-2017-1000082.
Severity ?
6.7 (Medium)
CWE
- n/a
Assigner
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| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
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CVE-2020-1712 (GCVE-0-2020-1712)
Vulnerability from nvd – Published: 2020-03-31 16:44 – Updated: 2025-06-09 15:53
VLAI?
Summary
A heap use-after-free vulnerability was found in systemd before version v245-rc1, where asynchronous Polkit queries are performed while handling dbus messages. A local unprivileged attacker can abuse this flaw to crash systemd services or potentially execute code and elevate their privileges, by sending specially crafted dbus messages.
Severity ?
7.8 (High)
CWE
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CVE-2025-4598 (GCVE-0-2025-4598)
Vulnerability from cvelistv5 – Published: 2025-05-30 13:13 – Updated: 2025-12-16 09:33
VLAI?
Title
Systemd-coredump: race condition that allows a local attacker to crash a suid program and gain read access to the resulting core dump
Summary
A vulnerability was found in systemd-coredump. This flaw allows an attacker to force a SUID process to crash and replace it with a non-SUID binary to access the original's privileged process coredump, allowing the attacker to read sensitive data, such as /etc/shadow content, loaded by the original process.
A SUID binary or process has a special type of permission, which allows the process to run with the file owner's permissions, regardless of the user executing the binary. This allows the process to access more restricted data than unprivileged users or processes would be able to. An attacker can leverage this flaw by forcing a SUID process to crash and force the Linux kernel to recycle the process PID before systemd-coredump can analyze the /proc/pid/auxv file. If the attacker wins the race condition, they gain access to the original's SUID process coredump file. They can read sensitive content loaded into memory by the original binary, affecting data confidentiality.
Severity ?
4.7 (Medium)
CWE
- CWE-364 - Signal Handler Race Condition
Assigner
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
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Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Affected:
0 , < 252.37
(semver)
Affected: 253.0 , < 253.32 (semver) Affected: 254.0 , < 254.25 (semver) Affected: 255.0 , < 255.19 (semver) Affected: 256.0 , < 256.14 (semver) Affected: 257.0 , < 257.6 (semver) |
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CVE-2023-7008 (GCVE-0-2023-7008)
Vulnerability from cvelistv5 – Published: 2023-12-23 13:00 – Updated: 2025-11-06 21:45
VLAI?
Title
Systemd-resolved: unsigned name response in signed zone is not refused when dnssec=yes
Summary
A vulnerability was found in systemd-resolved. This issue may allow systemd-resolved to accept records of DNSSEC-signed domains even when they have no signature, allowing man-in-the-middles (or the upstream DNS resolver) to manipulate records.
Severity ?
5.9 (Medium)
CWE
- CWE-300 - Channel Accessible by Non-Endpoint
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 8 |
Unaffected:
0:239-82.el8 , < *
(rpm)
cpe:/o:redhat:enterprise_linux:8::baseos |
|||||||||||||||||
|
|||||||||||||||||||
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CVE-2023-31439 (GCVE-0-2023-31439)
Vulnerability from cvelistv5 – Published: 2023-06-13 00:00 – Updated: 2024-08-02 14:53 Disputed
VLAI?
Summary
An issue was discovered in systemd 253. An attacker can modify the contents of past events in a sealed log file and then adjust the file such that checking the integrity shows no error, despite modifications. NOTE: the vendor reportedly sent "a reply denying that any of the finding was a security vulnerability."
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
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CVE-2023-31438 (GCVE-0-2023-31438)
Vulnerability from cvelistv5 – Published: 2023-06-13 00:00 – Updated: 2024-08-02 14:53 Disputed
VLAI?
Summary
An issue was discovered in systemd 253. An attacker can truncate a sealed log file and then resume log sealing such that checking the integrity shows no error, despite modifications. NOTE: the vendor reportedly sent "a reply denying that any of the finding was a security vulnerability."
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
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CVE-2023-31437 (GCVE-0-2023-31437)
Vulnerability from cvelistv5 – Published: 2023-06-13 00:00 – Updated: 2025-01-03 19:31 Disputed
VLAI?
Summary
An issue was discovered in systemd 253. An attacker can modify a sealed log file such that, in some views, not all existing and sealed log messages are displayed. NOTE: the vendor reportedly sent "a reply denying that any of the finding was a security vulnerability."
Severity ?
5.3 (Medium)
CWE
- n/a
Assigner
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CVE-2023-26604 (GCVE-0-2023-26604)
Vulnerability from cvelistv5 – Published: 2023-03-03 00:00 – Updated: 2025-03-07 18:16
VLAI?
Summary
systemd before 247 does not adequately block local privilege escalation for some Sudo configurations, e.g., plausible sudoers files in which the "systemctl status" command may be executed. Specifically, systemd does not set LESSSECURE to 1, and thus other programs may be launched from the less program. This presents a substantial security risk when running systemctl from Sudo, because less executes as root when the terminal size is too small to show the complete systemctl output.
Severity ?
7.8 (High)
CWE
- n/a
Assigner
References
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CVE-2022-4415 (GCVE-0-2022-4415)
Vulnerability from cvelistv5 – Published: 2023-01-11 00:00 – Updated: 2025-11-03 19:27
VLAI?
Summary
A vulnerability was found in systemd. This security flaw can cause a local information leak due to systemd-coredump not respecting the fs.suid_dumpable kernel setting.
Severity ?
5.5 (Medium)
CWE
Assigner
References
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CVE-2022-45873 (GCVE-0-2022-45873)
Vulnerability from cvelistv5 – Published: 2022-11-23 00:00 – Updated: 2025-04-25 18:19
VLAI?
Summary
systemd 250 and 251 allows local users to achieve a systemd-coredump deadlock by triggering a crash that has a long backtrace. This occurs in parse_elf_object in shared/elf-util.c. The exploitation methodology is to crash a binary calling the same function recursively, and put it in a deeply nested directory to make its backtrace large enough to cause the deadlock. This must be done 16 times when MaxConnections=16 is set for the systemd/units/systemd-coredump.socket file.
Severity ?
5.5 (Medium)
CWE
- n/a
Assigner
References
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CVE-2022-3821 (GCVE-0-2022-3821)
Vulnerability from cvelistv5 – Published: 2022-11-08 00:00 – Updated: 2025-05-02 18:12
VLAI?
Summary
An off-by-one Error issue was discovered in Systemd in format_timespan() function of time-util.c. An attacker could supply specific values for time and accuracy that leads to buffer overrun in format_timespan(), leading to a Denial of Service.
Severity ?
5.5 (Medium)
CWE
- CWE-193 - - Off-by-one Error
Assigner
References
| URL | Tags | ||||||||||||||||||||||
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CVE-2022-2526 (GCVE-0-2022-2526)
Vulnerability from cvelistv5 – Published: 2022-09-09 00:00 – Updated: 2024-08-03 00:39
VLAI?
Summary
A use-after-free vulnerability was found in systemd. This issue occurs due to the on_stream_io() function and dns_stream_complete() function in 'resolved-dns-stream.c' not incrementing the reference counting for the DnsStream object. Therefore, other functions and callbacks called can dereference the DNSStream object, causing the use-after-free when the reference is still used later.
Severity ?
No CVSS data available.
CWE
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| n/a | systemd-resolved |
Affected:
systemd 240
|
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CVE-2021-3997 (GCVE-0-2021-3997)
Vulnerability from cvelistv5 – Published: 2022-08-23 00:00 – Updated: 2024-08-03 17:16
VLAI?
Summary
A flaw was found in systemd. An uncontrolled recursion in systemd-tmpfiles may lead to a denial of service at boot time when too many nested directories are created in /tmp.
Severity ?
No CVSS data available.
CWE
- CWE-674 - - Uncontrolled Recursion
Assigner
References
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CVE-2021-33910 (GCVE-0-2021-33910)
Vulnerability from cvelistv5 – Published: 2021-07-20 18:13 – Updated: 2025-06-09 15:44
VLAI?
Summary
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.
Severity ?
5.5 (Medium)
CWE
- n/a
Assigner
References
| URL | Tags | ||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||
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CVE-2020-13529 (GCVE-0-2020-13529)
Vulnerability from cvelistv5 – Published: 2021-05-10 15:08 – Updated: 2024-08-04 12:18
VLAI?
Summary
An exploitable denial-of-service vulnerability exists in Systemd 245. A specially crafted DHCP FORCERENEW packet can cause a server running the DHCP client to be vulnerable to a DHCP ACK spoofing attack. An attacker can forge a pair of FORCERENEW and DCHP ACK packets to reconfigure the server.
Severity ?
6.1 (Medium)
CWE
- CWE-290 - Authentication Bypass by Spoofing
Assigner
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Impacted products
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CVE-2020-13776 (GCVE-0-2020-13776)
Vulnerability from cvelistv5 – Published: 2020-06-03 02:05 – Updated: 2025-06-09 15:46
VLAI?
Summary
systemd through v245 mishandles numerical usernames such as ones composed of decimal digits or 0x followed by hex digits, as demonstrated by use of root privileges when privileges of the 0x0 user account were intended. NOTE: this issue exists because of an incomplete fix for CVE-2017-1000082.
Severity ?
6.7 (Medium)
CWE
- n/a
Assigner
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|---|---|---|---|---|---|---|---|---|---|---|---|
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CVE-2020-1712 (GCVE-0-2020-1712)
Vulnerability from cvelistv5 – Published: 2020-03-31 16:44 – Updated: 2025-06-09 15:53
VLAI?
Summary
A heap use-after-free vulnerability was found in systemd before version v245-rc1, where asynchronous Polkit queries are performed while handling dbus messages. A local unprivileged attacker can abuse this flaw to crash systemd services or potentially execute code and elevate their privileges, by sending specially crafted dbus messages.
Severity ?
7.8 (High)
CWE
Assigner
References
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