libxml2: Heap-based buffer overflow in xmlDictComputeFastQKey
Published Dec 15, 2015
5.0
MEDIUMCVSS 2.0
EPSS 7.15%
Description
Heap-based buffer overflow in the xmlDictComputeFastQKey function in dict.c in libxml2 before 2.9.3 allows context-dependent attackers to cause a denial of service via unspecified vectors.
Affected products
No data.
Configuration 1
- 7.0
- 8.0
Configuration 2
- 12.04
- 14.04
- 15.04
- 15.10
Configuration 4
- 6.0
- 6.0
- 6.0
- 6.0
Configuration 5
- 3.0
- 3.0
No data.
Red Hat Enterprise Linux 6
libxml2-0:2.7.6-20.el6_7.1
Fixed · RHSA-2015:2549
Red Hat Enterprise Linux 7
libxml2-0:2.9.1-6.el7_2.2
Fixed · RHSA-2015:2550
Red Hat JBoss Web Server 3.0
libxml2
Fixed · RHSA-2016:1089
Red Hat Enterprise Linux 5
libxml2
Will not fix
Red Hat JBoss Enterprise Web Server 2
libxml2
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | libxml2-0:2.7.6-20.el6_7.1 | Fixed | RHSA-2015:2549 |
| Red Hat Enterprise Linux 7 | libxml2-0:2.9.1-6.el7_2.2 | Fixed | RHSA-2015:2550 |
| Red Hat JBoss Web Server 3.0 | libxml2 | Fixed | RHSA-2016:1089 |
| Red Hat Enterprise Linux 5 | libxml2 | Will not fix | n/a |
| Red Hat JBoss Enterprise Web Server 2 | libxml2 | Will not fix | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (22 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 7.15% (0.07151) | 94.09th | v5 (v2026.06.15) |
| Jun 15, 2026 | 7.02% (0.07017) | 93.32th | v5 (v2026.06.15) |
| May 13, 2026 | 1.16% (0.01161) | 78.77th | v4 (v2025.03.14) |
| May 11, 2026 | 2.38% (0.02383) | 85.11th | v4 (v2025.03.14) |
| Dec 28, 2025 | 3.44% (0.03441) | 87.12th | v4 (v2025.03.14) |
| Dec 27, 2025 | 2.20% (0.02195) | 84.00th | v4 (v2025.03.14) |
| Oct 28, 2025 | 3.44% (0.03441) | 86.97th | v4 (v2025.03.14) |
| Oct 27, 2025 | 2.20% (0.02195) | 83.86th | v4 (v2025.03.14) |
| Oct 1, 2025 | 3.44% (0.03441) | 87.07th | v4 (v2025.03.14) |
| Aug 29, 2025 | 2.05% (0.02050) | 83.13th | v4 (v2025.03.14) |
| Jun 29, 2025 | 3.57% (0.03570) | 87.23th | v4 (v2025.03.14) |
| Mar 30, 2025 | 2.56% (0.02562) | 84.18th | v4 (v2025.03.14) |
| Mar 29, 2025 | 4.55% (0.04552) | 81.61th | v4 (v2025.03.14) |
| Mar 17, 2025 | 2.74% (0.02743) | 85.01th | v4 (v2025.03.14) |
| Dec 12, 2024 | 1.80% (0.01795) | 88.61th | v3 (v2023.03.01) |
| Jan 14, 2024 | 1.80% (0.01795) | 86.76th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.57% (0.01568) | 85.18th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.69% (0.02686) | 82.85th | v2 (v2022.01.01) |
| Feb 13, 2023 | 2.69% (0.02686) | 82.39th | v2 (v2022.01.01) |
| Feb 3, 2023 | 4.36% (0.04358) | 87.66th | v2 (v2022.01.01) |
| Apr 1, 2022 | 2.69% (0.02686) | 81.17th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.69% (0.02686) | 62.66th | v2 (v2022.01.01) |
References (19)
- http://lists.opensuse.org/opensuse-updates/2015-12/msg00120.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-updates/2016-01/msg00031.html vendor-advisoryx_refsource_SUSE
- http://marc.info/?l=bugtraq&m=145382616617563&w=2 vendor-advisoryx_refsource_HPThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2015-2549.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2015-2550.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-1089.html vendor-advisoryx_refsource_REDHAT
- http://www.debian.org/security/2015/dsa-3430 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html x_refsource_CONFIRM
- http://www.securityfocus.com/bid/79508 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id/1034243 vdb-entryx_refsource_SECTRACK
- http://www.ubuntu.com/usn/USN-2834-1 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- http://xmlsoft.org/news.html x_refsource_CONFIRMVendor Advisory
- https://access.redhat.com/security/cve/CVE-2015-7497 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1281862 x_refsource_CONFIRMIssue TrackingThird Party AdvisoryVDB Entry
- https://git.gnome.org/browse/libxml2/commit/?id=6360a31a84efe69d155ed96306b9a931a40beab9 x_refsource_CONFIRM
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04944172 x_refsource_CONFIRMThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2015-7497
- https://security.gentoo.org/glsa/201701-37 vendor-advisoryx_refsource_GENTOO
- https://www.cve.org/CVERecord?id=CVE-2015-7497
Change history (0)
No recorded changes yet.