CVE-2017-1000458
CVE-2017-1000458 is a critical-severity vulnerability in Bro with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-787.
Key facts
- Severity: Critical (CVSS 3.x base score 9.8)
- CVSS v2: 7.5
- EPSS exploit prediction: 2% (81st percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-787
- Affected product: Bro
- Published:
- Last modified:
Description
Bro before Bro v2.5.2 is vulnerable to an out of bounds write in the ContentLine analyzer allowing remote attackers to cause a denial of service (crash) and possibly other exploitation.
Frequently asked questions
- What is CVE-2017-1000458?
- Bro before Bro v2.5.2 is vulnerable to an out of bounds write in the ContentLine analyzer allowing remote attackers to cause a denial of service (crash) and possibly other exploitation.
- How severe is CVE-2017-1000458?
- CVE-2017-1000458 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2017-1000458 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2017-1000458?
- CVE-2017-1000458 affects Bro. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2017-1000458?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- When was CVE-2017-1000458 published?
- CVE-2017-1000458 was published on 2018-01-02 and last updated on 2026-06-17.
References
- https://bro-tracker.atlassian.net/browse/BIT-1856
- https://github.com/bro/bro/commit/6c0f101a62489b1c5927b4ed63b0e1d37db40282
Affected products (1)
- cpe:2.3:a:bro:bro:2.5.2:*:*:*:*:*:*:*
More vulnerabilities in Bro
- CVE-2018-17019 — High (CVSS 7.5): In Bro through 2.5.5, there is a DoS in IRC protocol names command parsing in analyzer/protocol/irc/IRC.cc.
- CVE-2018-16807 — High (CVSS 7.5): In Bro through 2.5.5, there is a memory leak potentially leading to DoS in scripts/base/protocols/krb/main.bro in the…
- CVE-2015-1522 — High (CVSS 7.5): analyzer/protocol/dnp3/DNP3.cc in Bro before 2.3.2 does not reject certain non-zero values of a packet length, which…
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