CVE-2015-8743: debian debian_linux Out-of-bounds Read
CVSS: 7.1v3.1HighModified
AliasesUBUNTU-CVE-2015-8743DEBIAN-CVE-2015-8743
Published 29-12-2016Last modified 06-08-2024
Vulnerability summary
CVE-2015-8743 is a high (CVSS 7.1) Out-of-bounds Read vulnerability in debian debian_linux. EPSS estimates a 0.45% chance of exploitation in the next 30 days, higher than 37.2% of scored vulnerabilities.
CVSS score
7.1/10
010
High · v3.1 (NVD)EPSS score
0.45%
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 15 · Related 11Timeline
- 29-12-2016PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
QEMU (aka Quick Emulator) built with the NE2000 device emulation support is vulnerable to an OOB r/w access issue. It could occur while performing 'ioport' r/w operations. A privileged (CAP_SYS_RAWIO) user/process could use this flaw to leak or corrupt QEMU memory bytes.
CVSS metrics
5 scores · 3 sources · 3 versionsHigh 7.1Preferred score · NVD (NIST)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:NSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated7.1HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
- OSV · DebianEcosystem advisory · calculated7.1HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
High 7.1Preferred score · OSV · Ubuntu (Ecosystem advisory) · calculated from vector
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:NSourcesSingle source
Low 3.6Preferred score · NVD (NIST)
AV:L/AC:L/Au:N/C:P/I:P/A:NSourcesSingle source
EPSS trend
Probability
0.45%
Chance of exploitation in the next 30 days
Percentile
37%
Versus all other CVEs
30-day change
0.00 pp
From 0.45% on 19-09-2026
19-09-202619-10-2026
EPSS score0.45%
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
- qemu< 1:2.5+dfsg-2
- debian_linuxEOL7.0 | 8.0
Qemu1 product
- qemu≤ 2.5.1
Ubuntu1 product
- qemu< 2.0.0+dfsg-2ubuntu1.22
3 vendors · 4 products
References
14 links- www.openwall.com/lists/oss-security/2016/01/04/1Mailing ListX Refsource MLISTThird Party AdvisoryREPORT
- lists.gnu.org/archive/html/qemu-devel/2016-01/msg00050.htmlMailing ListX Refsource MLISTPatchVendor Advisory