What’s Vulnerable › Vulnerabilities

CVE-2020-35573

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-12-20 · updated 2026-06-17
• Weakness: CWE-834

Description

srs2.c in PostSRSd before 1.10 allows remote attackers to cause a denial of service (CPU consumption) via a long timestamp tag in an SRS address.

Affected products

• Debian Linux: 9.0
• Postsrsd Project Postsrsd: before 1.10 — fixed in 1.10

How to fix

Upgrade to a fixed version: Postsrsd Project Postsrsd 1.10. Check the vendor advisory for mitigations.

References

• https://github.com/roehling/postsrsd/commit/4733fb11f6bec6524bb8518c5e1a699288c26bac
• https://lists.debian.org/debian-lts-announce/2020/12/msg00031.html
• https://security.gentoo.org/glsa/202107-08
• https://github.com/roehling/postsrsd/commit/4733fb11f6bec6524bb8518c5e1a699288c26bac
• https://lists.debian.org/debian-lts-announce/2020/12/msg00031.html
• https://security.gentoo.org/glsa/202107-08

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