CVE-2018-9989: arm mbed_tls Out-of-bounds Read
CVSS: 7.5v3.1HighModified
AliasesUBUNTU-CVE-2018-9989DEBIAN-CVE-2018-9989
Published 10-04-2018Last modified 05-08-2024
Vulnerability summary
CVE-2018-9989 is a high (CVSS 7.5) Out-of-bounds Read vulnerability in arm mbed_tls. EPSS estimates a 2.12% chance of exploitation in the next 30 days, higher than 81.5% of scored vulnerabilities.
CVSS score
7.5/10
010
High · v3.1 (NVD)EPSS score
2.12%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 5 · Related 2Timeline
- 10-04-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
ARM mbed TLS before 2.1.11, before 2.7.2, and before 2.8.0 has a buffer over-read in ssl_parse_server_psk_hint() that could cause a crash on invalid input.
CVSS metrics
4 scores · 3 sources · 2 versionsHigh 7.5Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Medium 5.0Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:N/I:N/A:PSourcesSingle source
EPSS trend
Probability
2.12%
Chance of exploitation in the next 30 days
Percentile
82%
Versus all other CVEs
30-day change
0.00 pp
From 2.12% on 19-09-2026
19-09-202619-10-2026
EPSS score2.12%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Debian2 products
- mbedtls< 2.8.0-1
- debian_linuxEOL8.0 | 9.0
Arm1 product
- mbed_tls< 2.1.11 | ≥ 2.7.0, < 2.7.2
Trustedfirmware1 product
- mbed_tls2.8.0:rc1
Ubuntu1 product
- mbedtlsAll versions (No fix recorded)
4 vendors · 5 products
References
8 links
lists.debian.org/debian-lts-announce/2018/09/msg00029.htmlMailing ListX Refsource MLISTThird Party Advisory- github.com/ARMmbed/mbedtls/commit/5224a7544c95552553e2e6be0b4a789956a6464eX Refsource CONFIRMPatchThird Party AdvisoryREPORT
- tls.mbed.org/tech-updates/releases/mbedtls-2.8.0-2.7.2-and-2.1.11-releasedX Refsource CONFIRMRelease NotesVendor AdvisoryREPORT
- github.com/ARMmbed/mbedtls/commit/740b218386083dc708ce98ccc94a63a95cd5629eX Refsource CONFIRMPatchThird Party AdvisoryREPORT
- lists.debian.org/debian-lts-announce/2021/11/msg00021.htmlMailing ListX Refsource MLISTThird Party Advisory