CVE-2019-5086
An exploitable integer overflow vulnerability exists in the flattenIncrementally function in the xcf2png and xcf2pnm binaries of xcftools, version 1.0.7.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.15%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
An exploitable integer overflow vulnerability exists in the flattenIncrementally function in the xcf2png and xcf2pnm binaries of xcftools, version 1.0.7. An integer overflow can occur while walking through tiles that could be exploited to corrupt memory and execute arbitrary code. In order to trigger this vulnerability, a victim would need to open a specially crafted XCF file.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 3.15% probability · 87th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-680, CWE-190, CWE-787
- Affected
- xcftools project/xcftools · debian/debian linux
- Source
- talos-cna@cisco.com
References
- https://lists.debian.org/debian-lts-announce/2021/02/msg00014.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/03/msg00008.htmlMailing List, Third Party Advisory
- https://talosintelligence.com/vulnerability_reports/TALOS-2019-0878Exploit, Third Party Advisory
- https://www.talosintelligence.com/vulnerability_reports/TALOS-2019-0878Exploit, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/02/msg00014.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/03/msg00008.htmlMailing List, Third Party Advisory
- https://talosintelligence.com/vulnerability_reports/TALOS-2019-0878Exploit, Third Party Advisory
- https://www.talosintelligence.com/vulnerability_reports/TALOS-2019-0878Exploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.