CVE-2018-11237: canonical ubuntu_linux Out-of-bounds Write
Vulnerability summary
CVE-2018-11237 is a high (CVSS 7.8) Out-of-bounds Write vulnerability in canonical ubuntu_linux. EPSS estimates a 0.87% chance of exploitation in the next 30 days, higher than 58.9% of scored vulnerabilities. 1 public exploit is recorded.
Public exploit (exploit-database, Date unknown)
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 6 · Related 5Timeline
- 18-05-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
An AVX-512-optimized implementation of the mempcpy function in the GNU C Library (aka glibc or libc6) 2.27 and earlier may write data beyond the target buffer, leading to a buffer overflow in __mempcpy_avx512_no_vzeroupper.
CVSS metrics
5 scores · 3 sources · 3 versions- OSV · UbuntuEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.87%
Chance of exploitation in the next 30 days
Percentile
59%
Versus all other CVEs
30-day change
Decrease -0.01 pp
From 0.88% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
1 foundExploitDB 44750
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Redhat4 products
Netapp2 products
Oracle2 products
- communications_session_border_controller8.0.0 | 8.1.0 | 8.2.0
- enterprise_communications_broker3.0.0 | 3.1.0
Canonical1 product
- ubuntu_linuxEOL16.04 | 18.04 | 19.10
Debian1 product
- glibc< 2.27-4
Gnu1 product
- glibc≤ 2.27
Ubuntu1 product
- glibc< 2.23-0ubuntu11.2 | < 2.27-3ubuntu1.2
7 vendors · 12 products
References
13 links- sourceware.org/bugzilla/show_bug.cgi?id=23196X Refsource MISCIssue TrackingPatchThird Party Advisory
- www.exploit-db.com/exploits/44750/ExploitX Refsource EXPLOIT DBBroken LinkThird Party AdvisoryVDB Entry
- www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.htmlX Refsource MISCPatchThird Party Advisory
