CVE-2018-0487
ARM mbed TLS before 1.3.22, before 2.1.10, and before 2.7.0 allows remote attackers to execute arbitrary code or cause a denial of service (buffer overflow) via a crafted certificate chain that is mishandled during RSASSA-PSS signature verification…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.26%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
ARM mbed TLS before 1.3.22, before 2.1.10, and before 2.7.0 allows remote attackers to execute arbitrary code or cause a denial of service (buffer overflow) via a crafted certificate chain that is mishandled during RSASSA-PSS signature verification within a TLS or DTLS session.
- CVSS 3.0
- 9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 3.26% probability · 88th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-119
- Affected
- arm/mbed tls · debian/debian linux
- Source
- security@debian.org
References
- http://www.securityfocus.com/bid/103056Third Party Advisory, VDB Entry
- https://security.gentoo.org/glsa/201804-19Third Party Advisory
- https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2018-01Mitigation, Vendor Advisory
- https://usn.ubuntu.com/4267-1/
- https://www.debian.org/security/2018/dsa-4138Third Party Advisory
- https://www.debian.org/security/2018/dsa-4147Third Party Advisory
- http://www.securityfocus.com/bid/103056Third Party Advisory, VDB Entry
- https://security.gentoo.org/glsa/201804-19Third Party Advisory
- https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2018-01Mitigation, Vendor Advisory
- https://usn.ubuntu.com/4267-1/
- https://www.debian.org/security/2018/dsa-4138Third Party Advisory
- https://www.debian.org/security/2018/dsa-4147Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.