libxslt: DoS when reading unexpected DTD nodes in XSLT in versions prior to 1.1.25
Published Dec 14, 2013
4.3
MEDIUMCVSS 2.0
EPSS 2.29%
Description
xslt.c in libxslt before 1.1.25 allows context-dependent attackers to cause a denial of service (crash) via a stylesheet that embeds a DTD, which causes a structure to be accessed as a different type. NOTE: this issue is due to an incomplete fix for CVE-2012-2825.
Affected products
No data.
- ≤ 1.1.24
- 0.0.1
- 0.1.0
- 0.2.0
- 0.3.0
- 0.4.0
- 0.5.0
- 0.6.0
- 0.7.0
- 0.8.0
- 0.9.0
- 0.10.0
- 0.11.0
- 0.12.0
- 0.13.0
- 0.14.0
- 1.0.0
- 1.0.1
- 1.0.2
- 1.0.3
- 1.0.4
- 1.0.5
- 1.0.6
- 1.0.7
- 1.0.8
- 1.0.9
- 1.0.10
- 1.0.11
- 1.0.12
- 1.0.13
- 1.0.14
- 1.0.15
- 1.0.16
- 1.0.17
- 1.0.18
- 1.0.19
- 1.0.20
- 1.0.21
- 1.0.22
- 1.0.23
- 1.0.24
- 1.0.25
- 1.0.26
- 1.0.27
- 1.0.28
- 1.0.29
- 1.0.30
- 1.0.31
- 1.0.32
- 1.0.33
- 1.1.0
- 1.1.1
- 1.1.2
- 1.1.3
- 1.1.4
- 1.1.5
- 1.1.6
- 1.1.7
- 1.1.8
- 1.1.9
- 1.1.10
- 1.1.11
- 1.1.12
- 1.1.13
- 1.1.14
- 1.1.15
- 1.1.16
- 1.1.17
- 1.1.18
- 1.1.19
- 1.1.20
- 1.1.21
- 1.1.22
- 1.1.23
No data.
Red Hat Enterprise Linux 4
libxslt
Will not fix
Red Hat Enterprise Linux 5
libxslt
Not affected
Red Hat Enterprise Linux 6
libxslt
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 4 | libxslt | Will not fix | n/a |
| Red Hat Enterprise Linux 5 | libxslt | Not affected | n/a |
| Red Hat Enterprise Linux 6 | libxslt | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
Not vulnerable. This issue was corrected in Red Hat Enterprise Linux 5 via RHSA-2012:1265. It did not affect Red Hat Enterprise Linux 6.
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:M/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 (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.29% (0.02290) | 82.59th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.36% (0.02363) | 81.52th | v5 (v2026.06.15) |
| Mar 30, 2025 | 0.50% (0.00499) | 63.12th | v4 (v2025.03.14) |
| Mar 29, 2025 | 1.70% (0.01704) | 70.92th | v4 (v2025.03.14) |
| Mar 17, 2025 | 0.54% (0.00540) | 65.63th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.23% (0.00226) | 61.75th | v3 (v2023.03.01) |
| Jun 14, 2024 | 0.23% (0.00226) | 61.02th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.23% (0.00226) | 58.99th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.18% (0.01183) | 61.76th | v2 (v2022.01.01) |
| Oct 19, 2022 | 1.18% (0.01183) | 60.79th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.18% (0.01183) | 58.77th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.18% (0.01183) | 35.15th | v2 (v2022.01.01) |
No CWE recorded.
References (13)
- http://seclists.org/oss-sec/2013/q4/238 mailing-listx_refsource_MLISTPatch
- http://seclists.org/oss-sec/2013/q4/239 mailing-listx_refsource_MLISTPatch
- http://secunia.com/advisories/56072 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://www.osvdb.org/99671 vdb-entryx_refsource_OSVDB
- https://access.redhat.com/security/cve/CVE-2013-4520 Vendor Advisory
- https://bugzilla.novell.com/show_bug.cgi?id=849019 x_refsource_CONFIRMExploitPatch
- https://bugzilla.redhat.com/show_bug.cgi?id=1027360 Issue Tracking
- https://gitorious.org/libxslt/libxslt/commit/7089a62b8f133b42a2981cf1f920a8b3fe9a8caa x_refsource_MISCExploitPatch
- https://nvd.nist.gov/vuln/detail/CVE-2013-4520
- https://rhn.redhat.com/errata/RHSA-2012-1265.html
- https://www.cve.org/CVERecord?id=CVE-2013-4520
- https://www.suse.com/support/update/announcement/2013/suse-su-20131654-1.html vendor-advisoryx_refsource_SUSE
- https://www.suse.com/support/update/announcement/2013/suse-su-20131656-1.html vendor-advisoryx_refsource_SUSE
Change history (0)
No recorded changes yet.