CVE-2017-17942
CVE-2017-17942 is a high-severity vulnerability in Libtiff with a CVSS 3.x base score of 8.8. 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-125.
Key facts
- Severity: High (CVSS 3.x base score 8.8)
- CVSS v2: 6.8
- EPSS exploit prediction: 2% (82nd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-125
- Affected product: Libtiff
- Published:
- Last modified:
Description
In LibTIFF 4.0.9, there is a heap-based buffer over-read in the function PackBitsEncode in tif_packbits.c.
Frequently asked questions
- What is CVE-2017-17942?
- In LibTIFF 4.0.9, there is a heap-based buffer over-read in the function PackBitsEncode in tif_packbits.c.
- How severe is CVE-2017-17942?
- CVE-2017-17942 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2017-17942 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2017-17942?
- CVE-2017-17942 affects Libtiff. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2017-17942?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2017-17942 published?
- CVE-2017-17942 was published on 2017-12-28 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:libtiff:libtiff:4.0.9:*:*:*:*:*:*:*
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