CVE-2017-9048
Description
libxml2 20904-GITv2.9.4-16-g0741801 is vulnerable to a stack-based buffer overflow. The function xmlSnprintfElementContent in valid.c is supposed to recursively dump the element content definition into a char buffer 'buf' of size 'size'. At the end of the routine, the function may strcat two more characters without checking whether the current strlen(buf) + 2 < size. This vulnerability causes programs that use libxml2, such as PHP, to crash.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| sles | affected | | |
| debian | bookworm | fixed | 2.9.4+dfsg1-3.1 |
| debian | bullseye | fixed | 2.9.4+dfsg1-3.1 |
| debian | forky | fixed | 2.9.4+dfsg1-3.1 |
| debian | sid | fixed | 2.9.4+dfsg1-3.1 |
| debian | trixie | fixed | 2.9.4+dfsg1-3.1 |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| xmlsoft | libxml2 | 2.9.4 | |
References
- http://www.debian.org/security/2017/dsa-3952
- http://www.openwall.com/lists/oss-security/2017/05/15/1
- http://www.securityfocus.com/bid/98556
- 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/201711-01
- https://www.suse.com/security/cve/CVE-2017-9048.html
- https://security-tracker.debian.org/tracker/CVE-2017-9048
CWEs
CWE-119
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.