CVE-2022-3821
CVE-2022-3821: 1 tracked advisory record across Red Hat. Compare vendor sources and published fix guidance.
Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.
Vendor advisory comparison
Red Hat
1 advisory- Advisory severityMedium5.5
Medium [CVE-2022-3821] off-by-one Error issue was discovered in Systemd in format_timespan function of time-util.c
CVE-2022-3821Source published Source updated
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. Network Manager uses systemd's format_timespan() only via the FORMAT_TIMESPAN() macro which allocates a 64-byte buffer on the stack. The longest string representing 32bit values in seconds doesn't exceed 34 bytes (for example, "134y 10month 10w 1d 10h 10min 10s"). Since all the values are in exact seconds there is no decimal part to print. Therefore, it doesn't seem possible to trigger the buffer overflow by returning a specially crafted DHCPv6 lease, and the CVE doesn't affect Network Manager. Red Hat severity: Moderate — CVSS 5.5…
- Affected products in this advisory
- Red Hat Enterprise Linux 8.6 Extended Update Support
- Red Hat Enterprise Linux 9
- Red Hat Enterprise Linux 7
- Red Hat package: systemd
- Source-reported affected versions
- Affected-version details not available in this record.
- Source-reported fixed versions
- systemd-0:239-68.el8_7.1
- systemd-0:239-58.el8_6.13
- systemd-0:250-12.el9_1.1
- RHSA-2023:0100
2 more entries in the full advisory.
- Mitigation guidance
- No mitigation guidance extracted; consult the source.
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