CVE-2016-4483
The xmlBufAttrSerializeTxtContent function in xmlsave.c in libxml2 allows context-dependent attackers to cause a denial of service (out-of-bounds read and application crash) via a non-UTF-8 attribute value, related to serialization.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (6.17%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
The xmlBufAttrSerializeTxtContent function in xmlsave.c in libxml2 allows context-dependent attackers to cause a denial of service (out-of-bounds read and application crash) via a non-UTF-8 attribute value, related to serialization. NOTE: this vulnerability may be a duplicate of CVE-2016-3627.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 6.17% probability · 93th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-502
- Affected
- xmlsoft/libxml2 · debian/debian linux · oracle/solaris
- Source
- cve@mitre.org
References
- http://rhn.redhat.com/errata/RHSA-2016-2957.htmlThird Party Advisory
- http://www.debian.org/security/2016/dsa-3593Third Party Advisory
- http://www.openwall.com/lists/oss-security/2016/05/03/8Exploit, Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2016/05/04/7Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2016/06/07/4Mailing List, Patch, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2016/06/07/5Mailing List, Patch, Third Party Advisory
- http://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.htmlThird Party Advisory
- http://www.securityfocus.com/bid/90013Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1036348Third Party Advisory, VDB Entry
- https://git.gnome.org/browse/libxml2/commit/?id=c97750d11bb8b6f3303e7131fe526a61ac65bcfdPatch, Third Party Advisory
- https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E
- https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E
- https://security.gentoo.org/glsa/201701-37Third Party Advisory
- https://www.tenable.com/security/tns-2016-18Third Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-2957.htmlThird Party Advisory
- http://www.debian.org/security/2016/dsa-3593Third Party Advisory
- http://www.openwall.com/lists/oss-security/2016/05/03/8Exploit, Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2016/05/04/7Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2016/06/07/4Mailing List, Patch, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2016/06/07/5Mailing List, Patch, Third Party Advisory
- http://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.htmlThird Party Advisory
- http://www.securityfocus.com/bid/90013Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1036348Third Party Advisory, VDB Entry
- https://git.gnome.org/browse/libxml2/commit/?id=c97750d11bb8b6f3303e7131fe526a61ac65bcfdPatch, Third Party Advisory
- https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E
- https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E
- https://security.gentoo.org/glsa/201701-37Third Party Advisory
- https://www.tenable.com/security/tns-2016-18Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.