CVE-2019-20556 — An issue was discovered on Samsung mobile devices with P(9

An issue was discovered on Samsung mobile devices with P(9.0) (SM6150, SM8150, SM8150_FUSION, exynos7885, exynos9610, and exynos9820 chipsets) software. RKP memory corruption allows attackers to control the effective address in EL2. The Samsung ID is SVE-2019-15221 (October 2019)

01What is this vulnerability?

An issue was discovered on Samsung mobile devices with P(9.0) (SM6150, SM8150, SM8150_FUSION, exynos7885, exynos9610, and exynos9820 chipsets) software. RKP memory corruption allows attackers to control the effective address in EL2. The Samsung ID is SVE-2019-15221 (October 2019).

02Affected products

Vendor	Product	Versions
n	a / n/a	n/a

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2020-03-24T18:23:48.000Z
• Last modified: 2024-08-05T02:46:09.738Z

09References

• security.samsungmobile.com — https://security.samsungmobile.com/securityUpdate.smsb